CN102209226B

CN102209226B - Call control method, device and system

Info

Publication number: CN102209226B
Application number: CN 201010138941
Authority: CN
Inventors: 戴强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-03-31
Filing date: 2010-03-31
Publication date: 2013-06-05
Anticipated expiration: 2030-03-31
Also published as: CN102209226A

Abstract

The embodiment of the invention provides a call control method, a call control device and a call control system. The method comprises the following steps of: reporting the call capability of a calling party and the call capability of a called party to computer telecommunication integration (CTI) equipment, wherein the call capability comprises audio capability and/or video capability; and operating the call capability of the calling party and the call capability of the called party according to an instruction of operating the call capability of the calling party and the call capability of the called party in a message transmitted by the CTI equipment respectively. In the method, the control of a CTI platform over the call is transferred to the control over the call capability by separating/analyzing the audio capability and video capability of the calling party and the called party from a call and reporting the call capability of the calling party and the called party to the CTI platform, and the separation operation or control over the audio capability and video capability of the call is realized according to the control instruction for the call capability in the message transmitted by the CTI platform, so video needs in the future complex video application sites are satisfied, and favorability for further extending services is achieved.

Description

Calling-control method, Apparatus and system

Technical field

The present invention relates to the communications field, relate to particularly a kind of calling-control method, Apparatus and system.

Background technology

At CSTA (Computer Supported Telecommunications Applications, the telecommunications application of computer supported) under the support of agreement, CTI (Computer TelecommunicationIntegration, computer telecommunication is integrated) platform can be by issuing the various message of CSTA agreement, and realization is called out exchange side and is controlled.

But due to the continuous increase of video traffic functional requirement, existing CSTA agreement can't satisfy the video requirement that day by day increases.

The inventor finds in realizing process of the present invention, prior art has the following disadvantages at least: can't solve following complex application context according to present standard C STA agreement, be that existing CSTA message can't realize following video traffic scene, therefore need a kind of new calling-control method and device to solve the technical problem that exists in following Video Applications scene.

Summary of the invention

The embodiment of the present invention provides a kind of calling-control method and device.The embodiment of the present invention is in order to satisfy the application demand of the video scene that day by day increases, audio capability, video capability are separated from call out, control respectively, the part CSTA message that the CTI platform issues realizes the control to the exchange side call capabilities by original being transformed into for call capabilities for calling.

On the one hand, the embodiment of the present invention provides a kind of calling-control method, and described method comprises: report the call capabilities of caller and called call capabilities to computer telecommunication integrated device CTI, described call capabilities comprises audio capability and/or video capability; The operation indication to the call capabilities of described caller and described called call capabilities that the message that issues according to described CTI is carried operates respectively call capabilities and the described called call capabilities of described caller.

On the other hand, the embodiment of the present invention provides a kind of call control apparatus, described device comprises: call capabilities reports the unit, is used for reporting the call capabilities of caller and called call capabilities to computer telecommunication integrated device CTI, and described call capabilities comprises audio capability and/or video capability; The call capabilities operating unit is used for the operation indication to the call capabilities of described caller and described called call capabilities of carrying according to the message that described CTI issues, and call capabilities and the described called call capabilities of described caller operated respectively.

Another aspect, the embodiment of the present invention also provides a kind of call control system, this system comprises: call control apparatus, be used for reporting the call capabilities of caller and called call capabilities to computer telecommunication integrated device CTI, and described call capabilities comprises audio capability and/or video capability; And the message that issues according to the described CTI operation indication to the call capabilities of described caller and described called call capabilities of carrying, call capabilities and the described called call capabilities of described caller operated respectively; Computer telecommunication integrated device CTI is used for receiving call capabilities and the described called call capabilities of the described caller that described call control apparatus reports, and described call capabilities comprises audio capability and/or video capability; According to call capabilities and the described called call capabilities of described caller, the generating run indication; Issue the message of carrying described operation indication to described call control apparatus.

The technical scheme that the embodiment of the present invention provides, by audio capability and the video capability of separating/analyzing calling and called from call out, and report the call capabilities of calling and called to the CTI platform, make the CTI platform be transformed into the control call capabilities from controlling to call out, and indicate according to the control for call capabilities that the message that the CTI platform issues is carried, audio capability, video capability separate operation or the control of realization to calling out, satisfied the video requirement that following Video Applications scene day increases, the expansion of business after being conducive to, and support more complicated Video Applications scene.

Description of drawings

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the flow chart of a kind of calling-control method of the embodiment of the present invention;

Fig. 2 is the flow chart of the another kind of calling-control method of the embodiment of the present invention;

Fig. 2 A is a kind of flow chart of method in application scenarios 1 according to embodiment of the present invention Fig. 2;

Fig. 2 B is the another kind of flow chart of method in application scenarios 1 according to embodiment of the present invention Fig. 2;

Fig. 3 is the flow chart of another calling-control method of the embodiment of the present invention;

Fig. 3 A is the flow chart of method in application scenarios 2 according to embodiment of the present invention Fig. 3;

Fig. 4 is the flow chart of another calling-control method of the embodiment of the present invention;

Fig. 4 A is a kind of flow chart of method in application scenarios 3 according to embodiment of the present invention Fig. 4;

Fig. 4 B is method another flow chart in application scenarios 3 according to embodiment of the present invention Fig. 4;

Fig. 4 C is method another flow chart in application scenarios 3 according to embodiment of the present invention Fig. 4;

Fig. 4 D is method another flow chart in application scenarios 3 according to embodiment of the present invention Fig. 4;

Fig. 5 is the flow chart of another calling-control method of the embodiment of the present invention;

Fig. 5 A is a kind of flow chart of method in application scenarios 4 according to embodiment of the present invention Fig. 5;

Fig. 6 is the flow chart of another calling-control method of the embodiment of the present invention;

Fig. 6 A is a kind of flow chart of method in application scenarios 5 according to embodiment of the present invention Fig. 6;

Fig. 7 is the flow chart of another calling-control method of the embodiment of the present invention;

Fig. 7 A is a kind of flow chart of method in application scenarios 6 according to embodiment of the present invention Fig. 7;

Fig. 8 is the flow chart of another calling-control method of the embodiment of the present invention;

The flow chart of another calling-control method of Fig. 9 embodiment of the present invention;

Fig. 9 A is a kind of flow chart of method in application scenarios 7 according to embodiment of the present invention Fig. 9;

Figure 10 is the flow chart of another calling-control method of the embodiment of the present invention;

Figure 10 A is a kind of flow chart of method in application scenarios 8 according to embodiment of the present invention Figure 10;

Figure 11 is the functional block diagram of the call control apparatus of the embodiment of the present invention;

Figure 12 is the functional block diagram of the another kind of call control apparatus of the embodiment of the present invention;

Figure 13 is the functional block diagram of a kind of call control system of the embodiment of the present invention.

Embodiment

For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.

Fig. 1 is the flow chart of a kind of calling-control method of the embodiment of the present invention.As shown in Figure 1, the executive agent of the method is SoftACD (Soft Automatic Call Distribution, soft automatic call distributes, and also claims soft queuing machine), and the method comprises:

S101, report the call capabilities of caller and called call capabilities to computer telecommunication integrated device CTI, described call capabilities comprises audio capability and/or video capability.

Particularly, SoftACD can carry out call capabilities to CTI and report by calling initiated event ServiceInitiatedEvent, the events such as bell event DeliveredEvent or the event of connection EstablishedEvent of shaking.

The operation indication to the call capabilities of described caller and described called call capabilities that S102, the message that issues according to described CTI are carried operates respectively call capabilities and the described called call capabilities of described caller.

Particularly, the message that issues of CTI can comprise following several: MakeCall (outgoing call) message, HoldCall (keeping calling out) message, ConsultationCall (consultant call) message, RetrieveCall (fetching calling) message, SingleStepConference (single step meeting) message, ConferenceCall (Conference Calling) message, SingleStepTransfer (single step diverting call) message, DivertCall (diverting call) message, RouterSelect (Route Selection) etc.It is following at least a that operation indication comprises: the indication that audio capability is operated, the indication that video capability is operated, the indication that the Voice ﹠ Video ability is operated, indication that caller or the called maximum call capabilities that has are operated etc.

The method of the embodiment of the present invention, by audio capability and the video capability of separating/analyzing calling and called from call out, and report the call capabilities of calling and called to the CTI platform, make the CTI platform be transformed into the control call capabilities from controlling to call out, and indicate according to the operation for call capabilities that the message that the CTI platform issues is carried, audio capability, video capability separate operation or the control of realization to calling out, satisfied the video requirement that following Video Applications scene day increases, the expansion of business after being conducive to, and support more complicated Video Applications scene.

The embodiment of the present invention is to solve problem in following Video Applications scene by expansion CSTA agreement, to satisfy the video traffic demand.Particularly, the embodiment of the present invention is to expand ServiceInitiatedEvent event, the DeliveredEvent event of CSTA agreement, the interface of EstablishedEvent event by employing, and the parameter of expansion MakeCall message, HoldCall message, ConsultationCall message, RetrieveCall message, SingleStepConference message, ConferenceCall message, SingleStepTransfer message, DivertCall message, RouterSelect message realizes.

The embodiment of the present invention is carried call capabilities in the interface of above-mentioned 3 event messages, the call capabilities that calling and called are had reports the CTI platform.Then, the call capabilities that the CTI platform has according to calling and called, the parameter interface by above-mentioned at least 9 message carries the call capabilities of message operation, audio capability, the video capability of calling out is done the corresponding control of call capabilities.

The embodiment of the present invention comprises following four kinds of extended modes at least to the extended mode of CSTA agreement:

Increase the sign of the call capabilities that local terminal and far-end have in the message interface of mode 1, the ServiceInitiatedEvent event in the CSTA agreement, DeliveredEvent event or EstablishedEvent event, and the call capabilities sign (audio capability, video capability) that local terminal and far-end have is reported the CTI platform.

For example: newly increase local device audio capability sign and video capability marking structure and be defined as follows:

LocalAbilityType::＝[APPLICATION 9]IMPLICIT ENUMERATED

{

AudioOnly (1),--audio capability

VideoOnly (2),--video capability

AudioAndVideo (3)--audio frequency+video capability

}

The remote equipment audio capability sign and the video capability marking structure that newly increase are defined as follows:

RemoteAbilityType::＝[APPLICATION 10]IMPLICIT ENUMERATED

{

AudioOnly (1),--audio capability

VideoOnly (2),--video capability

AudioAndVideo (3)--audio frequency+video capability

}

ServiceInitiatedEvent event, DeliveredEvent event, EstablishedEvent event increase local terminal and far-end sound, video capability (calling and called sound, video capability) in the CSTA agreement, add boldface type and be newly-increased part, argument structure is defined as follows respectively:

ServiceInitiatedEvent::＝

SEQUENCE

{

initiatedConnection ConnectionID，

localConnectionInfo LocalConnectionState OPTIONAL，

cause EventCause OPTIONAL，

LocalAbilityType LocalAbilityType OPTIONAL,--local device has

Ability

RemoteAbilityType RemoteAbilityType OPTIONAL--remote equipment has

Ability

}

DeliveredEvent::＝

SEQUENCE

{connection ConnectionID，

alertingDevice SubjectDeviceID，

callingDevice CallingDeviceID，

calledDevice CalledDeviceID，

lastRedirectionDevice RedirectionDeviceID，

originatingConnection ConnectionID OPTIONAL，

localConnectionInfo LocalConnectionState OPTIONAL，

correlatorData CorrelatorData OPTIONAL，

cause EventCause OPTIONAL，

LocalAbilityType LocalAbilityType OPTIONAL,--local device has

Ability

RemoteAbilityType RemoteAbilityType OPTIONAL--remote equipment has

Ability

}

EstablishedEvent::＝

SEQUENCE

{

establishedConnection ConnectionID，

answeringDevice SubjectDeviceID，

callingDevice CallingDeviceID，

calledDevice CalledDeviceID，

lastRedirectionDevice RedirectionDeviceID，

originatingConnection ConnectionID OPTIONAL，

localConnectionInfo LocalConnectionState OPTIONAL，

correlatorData CorrelatorData OPTIONAL，

cause EventCause OPTIONAL，

LocalAbilityType LocalAbilityType OPTIONAL,--local device has

Ability

RemoteAbilityType RemoteAbilityType OPTIONAL--remote equipment has

Ability

}

Mode 2, increase capacity of equipment altering event, purpose is when operating, and owing to consulting to cause the ability of equipment to change, for example falls back to audio capability by audio capability+video capability, or equipment oneself has initiatively carried out the change of ability etc.SoftACD is by AbilityChangeEvent (ability change event) event notice CTI platform, and the ability of equipment changes.

Increase the AbilityChangeEvent event, its organization definition is as follows:

AbilityChangeEvent::＝

SEQUENCE

{

AbilityChangedConnection ConnectionID，

LocalAbilityType LocalAbilityType OPTIONAL,--local device has

Ability

RemoteAbilityType RemoteAbilityType OPTIONAL,--remote equipment has

Ability

cause EventCause OPTIONAL

}

Private data field in the general parameter texture field of reserving in mode 3, the parameter interface by MakeCall message, HoldCall message, ConsultationCall message, RetrieveCall message in the CSTA agreement, carry the call capabilities of message operation, realize that top 4 message are to the operation of audio frequency, video capability.

Private data field in the general parameter texture field of reserving in mode 4, the parameter interface by DivertCall message, SingleStepTransfer message, RouteSelect message in the CSTA agreement, carry whether keep the spare capacity parameter, realize calling out shifting whether keep the spare capacity function.

Private data field in the general parameter texture field of reserving in mode 5, the parameter interface by SingleStepConference message, ConferenceCall message in the CSTA agreement, carry the meeting-place and create indication, the meeting-place that creates with indication is audio frequency meeting-place or video meeting-place.

Below mode 3-mode 5 is elaborated, because the CSTA agreement has been reserved this texture field of general parameter for each message, and the private data field that comprises a undefined data type in this texture field, the data type of this private data field can be by free definition, in the invention process, the data type of the private data field in the general parameter texture field of above-mentioned nine message is redefined into the data structure of privately owned parameter, like this, when the CTI platform issues these nine message, can carry corresponding spreading parameter.

Describe as an example of DivertCall message example, the argument structure to DivertCall message in existing CSTA agreement is defined as follows:

DivertCallArgument::＝SEQUENCE

{

divertInfo DivertInfo，

deviceProfile DeviceProfile OPTIONAL，

correlatorData CorrelatorData OPTIONAL，

extensions CSTACommonArguments OPTIONAL

}

Extensions in this message parameter structure is the field that will expand of the embodiment of the present invention just, in existing CSTA agreement, this data type of CSTACommonArguments is defined as:

CSTACommonArguments::＝[APPLICATION 30]IMPLICIT SEQUENCE

{

security [0]IMPLICIT CSTASecurityData OPTIONAL，

privateData [1]IMPLICIT SEQUENCE OF CSTAPrivateData OPTIONAL

}

Individual privateData field is arranged in this structure of CSTACommonArguments, to its not definition of data type, as follows in the CSTA agreement:

CSTAPrivateData::＝NULL --The actual encoding of the private event is added here，

--replacing NULL with another valid ASN.1 type.

In embodiments of the present invention, the data type of this CSTAPrivateData structure is redefined, increase audio capability, video capability operation indication, audio frequency, video meeting-place creates indication, and whether keeps the spare capacity indication.Adding boldface type is the parameter that the embodiment of the present invention newly increases, and redefines the data type of CSTAPrivateData as follows:

CSTAPrivateData ::＝SEQUENCE

{

null [0]IMPLICIT NULL OPTIONAL，

infoToSend [1]IMPLICIT InfoToSend OPTIONAL，

fillingCallerNumber [2]IMPLICIT IA5String OPTIONAL，

handleFlag [3]IMPLICIT BIT STRING(SIZE(1..32)) OPTIONAL，

operationAbilityType [4]IMPLICIT OperationAbilityOPTIONAL，

conferenceAbilityType[5]IMPLICIT ConferenceAbilityType OPTIONAL，

idleAbilityReserveInd[6]IMPLICIT IdleAbilityReserveInd OPTIONAL，

callerAbility [7]IMPLICIT OperationAbility OPTIONAL，

calleeAbility [8]IMPLICIT OperationAbility OPTIONAL

}

Above-described protocol extension need to increase following three and enumerate OperationAbilityType, ConferenceAbilityType, IdleAbilityReserveInd.

MakeCall message, HoldCall message, ConsultationCall message, SingleStepConference, RetrieveCall message increase the operationAbilityType parameter:

--the operational capacity indication

OperationAbilityType::＝ENUMERATED

{

AllAbility (0),--operate current having the ability

AudioOnly (1),--the operating audio ability

VideoOnly (2),--the operation video capability

AudioAndVideo (3)-operating audio+video capability

}

SingleStepConference message, ConferenceCall message increase the conferenceAbilityType parameter:

--the meeting-place type

ConferenceAbilityType::＝ENUMERATED

{

AudioConference (0),--the audio frequency meeting-place

VideoConference (1)--video meeting-place

}

DivertCall message, SingleStepTransfer message, SingleStepConference, RouteSelect message increase the idleAbilityReserveInd parameter:

--whether keep spare capacity

idleAbilityReserveInd::＝ENUMERATED

{

ReserveIdleAbility (0),--keep spare capacity

NoReserveIdleAbility (1)--do not keep spare capacity

}

Below the explanation embodiment of the present invention technical scheme for application scenarios, for example, a plurality of application scenarioss below will occurring in the application of following video:

Scene 1, video user are dialed the SoftACD access code and are ranked, SoffACD does not have idle video to attend a banquet, after CTI indication SoftACD is assigned to this video user audio frequency and attends a banquet, need the CTI platform to specify and whether keep user's video capability, if do not keep spare capacity, the ability of video user returns to fall back to from the ability of audio frequency+video only has audio capability.

Scene 2, video user incoming call are after SoftACD and the connection of audio frequency seat, and the audio frequency seat is play the maintenance video to the user, audio frequency seat and video user voice-frequency telephony.

Scene 3, video user incoming call are after SoftACD and the connection of video seat, video user needs the video seat that the video playback of some message or the image that video user is watched the video seat are provided, the audio frequency in video user and the conversation of video seat or tin playing video file.

When scene 4, seat are used the outgoing call of MakeCall message, specify the maximum capacity that has by audio capability or audio frequency+video capability or called subscriber to carry out outgoing call.

After scene 5, video seat and video user conversation, the video seat can't solve user's request, needs consulting to other senior video seats.This moment, the user listened holding tone, saw the maintenance video of broadcast, and perhaps the user listens holding tone, sees the image of video seat, and video seat and senior video seat carry out voice or audio frequency+video calling; Holding tone is the audio frequency that the default playback equipment on SoftACD is play for the user, and keeping video is the video that the default playback equipment on SoftACD is play for the user.

After scene 6, video user and the conversation of audio frequency seat, the audio frequency seat is seeked advice from senior video seat, is specified by the seat request and sets up audio frequency meeting-place (audioConference) or Three-Way Calling is carried out in video meeting-place (videoConference).

After scene 7_1, video user and the conversation of audio frequency seat, senior video seat needs intrusion and video user, the conversation of audio frequency seat, sets up the audio or video meeting-place by senior video seat request appointment and carries out Three-Way Calling.

After scene 7_2, video user and the conversation of audio frequency seat, senior video seat need to monitor the conversation of video user and audio frequency seat, and senior video seat monitors with audio capability, video capability or audio capability+video capability.

After scene 8, audio user and the conversation of audio frequency seat, after audio user switched to the audio frequency and video ability from audio capability, the audio frequency seat provided the operation of displaying video to the user.

Further, describe below in conjunction with concrete flow chart the technical scheme that the embodiment of the present invention provides in detail, satisfying the business demand of above-mentioned at least 8 application scenarioss, and solve the technical problem that exists in above-mentioned application scenarios.

Fig. 2 is the flow chart of the another kind of calling-control method of the embodiment of the present invention.The method is directed to application scenarios 1, and the executive agent of the method is SoftACD as shown in Figure 2, comprises the steps:

It is audio capability and video capability that S201, SoftACD report the call capabilities of video user equipment to CTI, and the call capabilities of audio frequency seat device is audio capability;

S202, SoftACD receive the Route Selection RouterSelect message that CTI issues, and have carried the indication that whether keeps spare capacity in RouterSelect message;

S203, according to the above-mentioned indication that whether keeps spare capacity, video user equipment is connected with audio capability with the audio frequency seat device, and keeps or remove the video capability of video user equipment.

Particularly, the detailed process of S203 can comprise: whether keep being designated as of spare capacity when keeping spare capacity when above-mentioned, send audio bearer information SDP (SessionDescriptionProtocol, Session Description Protocol) and the virtual video SDP of described audio frequency seat device to above-mentioned video user equipment; Perhaps, whether keep being designated as of spare capacity when not keeping spare capacity when above-mentioned, sending the audio frequency SDP of above-mentioned audio frequency seat device and port numbers to above-mentioned video user equipment is 0 video SDP.

Fig. 2 A is a kind of flow chart of method in application scenarios 1 according to embodiment of the present invention Fig. 2.As shown in Fig. 2 A, the idleAbilityReserveInd parameter that the RouteSelect message that CTI issues in this scene is carried is for keeping spare capacity, and this flow process comprises the steps:

S201A, the incoming call of video user equipment are after the SoftACD access code, SoftACD reports or sends the DeliveredEvent event to CTI, the call capabilities that this DeliveredEvent event is carried video user equipment is audio capability and video capability, is audio capability and video capability with the ability of notifying this video user equipment of CTI platform.

S202A, because video user equipment has video equipment, so this video user equipment can listen welcome words, sees the welcome words video.At welcome words with after welcoming video playback complete, SoftACD reports or sends route assignment request RouteRequest and asks the platform to CTI, request CTI platform with this video user devices allocation to certain equipment, above-mentioned certain equipment can be audio frequency seat apparatus, video seat device or Interaction Voice Response equipment (Interactive Voice Response, IVR).

S203A, CTI detect to find there is no idle video user equipment and IVR, and CTI can select on audio frequency seat device with this video user devices allocation to a free time; CTI issues RouteSelect message to SoftACD, with this video user devices allocation to the audio frequency seat device of above-mentioned selection; Simultaneously because this video user equipment has idle video capability with respect to the audio frequency seat device, CTI can select whether to keep the video capability of this video user, if CTI selects to keep spare capacity, CTI also need carry the idleAbilityReserveInd parameter in above-mentioned RouteSelect message, the value of this parameter is for keeping spare capacity, and SoftACD need to keep the video capability of this video user free time with indication.

S204A, SoftACD send to the audio frequency seat device and heavily consult INVITE, carry the SDP of video user equipment in this INVITE.

S205A, audio frequency seat device return to 18X message to SoftACD, carry the audio frequency SDP of audio frequency seat device in this 18X message.

Carrying the far-end ability in the DeliveredEvent event that S206A, SoftACD report to CTI is audio capability and video capability, and the local terminal ability is audio capability; This step can be omitted, but the call capabilities of subscriber equipment may change in real time sometimes, in this case, need in real time to the current ability of CTI report of user equipment, therefore increase SoftACD and report the number of times of calling and called ability or frequency can effectively make CTI obtain ability after calling and called upgrade to CTI.

S207A, SoftACD is after the audio frequency SDP of the audio frequency seat device that gets the CTI distribution, SoftACD carries SDP in sending to the 18X message of video user equipment, this SDP is comprised of audio-frequency unit and video section, audio-frequency unit carries the audio frequency SDP of audio frequency seat device, so that video user equipment is connected with audio capability with the audio frequency seat device, and because the CTI indication needs to keep video capability, this video section carries virtual SDP, so that video user equipment is connected with virtual equipment, thereby the video capability that can keep video user equipment, be convenient to keep video for the video user device plays in the follow-up maintenance operating process that may need.

S208A, this moment, video user and audio frequency seat carried out voice call, and video user is seen and play the last frame image last time or there is no the image demonstration.

Alternatively, S209A can replace S205A, and S210A can replace S207A, and S211A can replace S206A, and S212A can replace S208A.

S209A, audio frequency seat device return to 200 message to SoftACD, carry the audio frequency SDP of audio frequency seat device in this 200 message;

S210A, SoftACD send in user's 200 message and carry beared information SDP, and its audio-frequency unit carries the SDP of audio frequency seat device, and its video section carries virtual SDP;

Carrying the far-end ability in the EstablishedEvent event that S211A, SoftACD report to CTI is audio capability and video capability, and the local terminal ability is audio capability.

S212A, this moment, video user and audio frequency seat carried out voice call, and video user sees and play the last frame image last time or there is no the image demonstration, and there is different realizations in different producers.

Fig. 2 B is the another kind of flow chart of method in application scenarios 1 according to embodiment of the present invention Fig. 2.As shown in Fig. 2 B, the idleAbilityReserveInd parameter that the RouteSelect message that CTI issues in this scene is carried is not for keeping spare capacity, and this flow process comprises the steps:

S201B-S202B is identical with S201A-S202A, is not repeated herein.

S203B, CTI are by issuing the audio frequency seat device of RouteSelect message with this video user devices allocation to a free time, and select not keep the video capability of video user device free as CTI, CTI issues in RouteSelect message to SoftACD and also need carry the idleAbilityReserveInd parameter, the value of this idleAbilityReserveInd parameter is not keep spare capacity, and the ability of video user falls back to from audio capability and video capability only has audio capability.

S204B-S205B is identical with S204A-S205A, is not repeated herein.

The far-end ability that S206B, SoftACD carry to the DeliveredEvent event that CTI reports is audio capability, and the local terminal ability is audio capability.

S207B, SoftACD send in the entrained SDP of the 18X message of video user, and audio-frequency unit is the audio frequency SDP of audio frequency seat device, and video section is that port numbers is 0 video SDP, and representative does not have video capability.

S208B, this moment, user and audio frequency seat carried out voice call, and the video window of audio frequency seat device is switched.

Alternatively, S209B can replace S205B, S210B and can replace S207B, S211B and can replace S206B, S212B and can replace S208B.

S209B, audio frequency seat device return to 200 message to SoftACD, carry the audio frequency SDP of audio frequency seat device in this 200 message.

S210B, SoftACD send in the SDP that 200 message of video user carry, and audio-frequency unit is the audio frequency SDP of audio frequency seat device, and the port numbers of video SDP is 0, and representative does not have video capability.

The far-end ability that S211B, SoftACD carry to the EstablishedEvent event that CTI reports is audio capability, and the local terminal ability is audio capability.

S212B, this moment, user and audio frequency seat carried out voice-frequency telephony, and the video window of audio frequency seat device is switched.

Alternatively, DivertCall message, SingleStepTransfer message whether keeps spare capacity when in the CSTA agreement, also can realize calling out transfer with the idleAbilityReserveInd spreading parameter, for example, after video user and the conversation of video seat, other audio frequency seat device is transferred in the video agent call, DivertCall message or SingleStepTransfer message are carried the idleAbilityReserveInd spreading parameter, are controlled the video capability that whether keeps video user by the CTI platform.

Fig. 2 of the embodiment of the present invention, method shown in Fig. 2 A and Fig. 2 B, SoftACD reports by the backward CTI of audio capability that the audio frequency and video ability that analyzes subscriber equipment have from call out and seat device have, and the indication that whether keeps the idle video capability of subscriber equipment that issues according to CTI, thereby can keep or remove the video capability of subscriber equipment free time, realized audio capability, the video capability separate operation, be conducive to follow-up business expansion, for example when having kept the video capability of subscriber equipment, follow-uply can be the maintenance video of this played and some traffic aided, satisfied the demand of subsequent video business.

Fig. 3 is the flow chart of another calling-control method of the embodiment of the present invention.The method is directed to application scenarios 2, and the executive agent of the method is SoftACD as shown in Figure 3, comprises the steps:

It is audio capability and video capability that S301, SoftACD report the call capabilities of video user equipment to CTI, and the call capabilities of audio frequency seat device is audio capability;

S302, SoftACD receive the maintenance calling HoldCall message that CTI issues, and HoldCall message comprises that the call capabilities that video capability is kept keeps indication;

S303, SoftACD keep indication according to call capabilities, video user equipment is connected with audio capability with the audio frequency seat device, and video user equipment is connected with video capability with default playback equipment.

Particularly, the detailed process of S303 can comprise: keep indication according to call capabilities, send the audio frequency SDP of audio frequency seat device and the video SDP of default playback equipment to video user equipment.

Fig. 3 A is the flow chart of method in application scenarios 2 according to embodiment of the present invention Fig. 3.As shown in Figure 3A, this flow process comprises the steps:

After S301A, video user device call audio frequency seat device, when audio frequency seat device shake bell, SoftACD reports the call capabilities of far-end video user equipment to CTI by the DeliveredEvent event, wherein the call capabilities of far-end video user equipment is audio capability and video capability.

S302A, when the audio frequency seat device is replied, calling and called carry out the voice call (not shown).SoftACD reports far-end video user capacity of equipment and local terminal ability by the EstablishedEvent event to CTI, and wherein the far-end ability is audio capability and video capability, and the local terminal ability is audio capability.

S303A, CTI are according to the call capabilities (video user equipment has video capability) of video user equipment, control the audio frequency seat device when carrying out voice call with video user equipment, for the video user device plays keeps video, so CTI issues HoldCall message to SoftACD, and call operation ability parameter operationAbilityType is carried in increase in this HoldCall message, this parameter value is videoOnly, so that the playback equipment of SoftACD internal preset starts the video playback of absence of audio.

S304A, SoftACD send and heavily consult INVITE to this video user equipment, and this INVITE carries the audio frequency SDP of audio frequency seat device and the video SDP of default playback equipment.Thereby video user equipment is set up audio frequency with the audio frequency seat device and is connected, and sets up video with default playback equipment and be connected.After carrying out above-mentioned steps, user and the voice-frequency telephony of audio frequency seat are seen to keep the video (not shown).

Need to prove, attend a banquet at audio frequency and carry out voice call process with video user equipment, the audio frequency seat device does not need to carry out bearer negotiation with SoftACD, keeping original connection is that audio frequency is connected with subscriber equipment, and SoftACD need to carry out bearer negotiation with video user equipment, and the Voice ﹠ Video that upgrades video user equipment connects.Make like this audio frequency of video user equipment be connected with the audio frequency of audio frequency seat device, the video of video user equipment is connected with the video playback apparatus of presetting.

Method shown in embodiment of the present invention Fig. 3 and Fig. 3 A, SoftACD is by analyzing the audio frequency and video ability of video user equipment and the backward CTI of audio capability of audio frequency seat device reports from call out, and carry in the HoldCall message that further issues according to CTI video capability is kept separately the indication that operates, video capability to video user equipment keeps, be the associated video that video user is play some business by default video playback apparatus, thereby satisfied the particular demands in the video traffic application scenarios.

Fig. 4 is the flow chart of another calling-control method of the embodiment of the present invention.The method is directed to application scenarios 3, and the executive agent of the method is SoftACD as shown in Figure 4, comprises the steps:

S401, attend a banquet at video user equipment and video and carry out video call process, SoftACD reports the call capabilities of video user equipment and video seat device to be audio capability and video capability to CTI;

S402, SoftACD receive the maintenance calling HoldCall message that CTI issues, HoldCall message comprises that call capabilities keeps indication, and call capabilities keeps indication to comprise with lower any: keep audio capability, keep video capability, keep audio capability and video capability or keep the video user equipment of far-end there is no maintained being had the ability.

S403, keep indication according to call capabilities, video user equipment is connected with maintained call capabilities with default playback equipment, attend a banquet equipment or converse with the call capabilities maintenance that has been connected of video user equipment and video.

Particularly, the detailed process of S403 can comprise: when call capabilities keeps being designated as the maintenance audio capability, send virtual audio frequency SDP and the video SDP of video user equipment to the video seat device, and send the audio frequency SDP of default playback equipment and the video SDP of video seat device to video user equipment; Perhaps,

When call capabilities keeps being designated as the maintenance video capability, send the audio frequency SDP of video user equipment and virtual video SDP to the video seat device, and send the audio frequency SDP of video seat device and the video SDP of default playback equipment to video user equipment; Perhaps,

When call capabilities keeps being designated as maintenance audio capability and video capability, or when keeping current having the ability, send virtual audio frequency SDP and virtual video SDP to the video seat device, and send audio frequency SDP and the video SDP of default playback equipment to video user equipment.

Alternatively, method shown in Figure 4 can further include:

RetrieveCall message is called out in fetching that S404, SoftACD reception CTI issues, RetrieveCall message comprises that call capabilities fetches indication, and call capabilities is fetched indication and comprised with lower any: fetch audio capability, fetch video capability, fetch audio capability and video capability or fetch current being had the ability.

The call capabilities is here fetched indication and is referred to the calling hold facility is fetched, for example: fetch audio capability and just refer to the maintenance audio capability is canceled.

S405, SoftACD fetch indication according to call capabilities, and video user equipment is connected with the call capabilities that is retrieved at least with the video seat device.

Particularly, the detailed process of S405 can comprise: fetch when call capabilities and be designated as when fetching audio capability, SoftACD sends the audio frequency SDP of video user equipment to the video seat device, and sends the audio frequency SDP of video seat device to video user equipment; Perhaps,

Fetch when described call capabilities and be designated as when fetching video capability, SoftACD sends the video SDP of video user equipment to the video seat device, and sends the video SDP of video seat device to video user equipment; Perhaps,

Fetch to be designated as when call capabilities and fetch audio capability and video capability, when perhaps fetching current having the ability, SoftACD sends audio frequency SDP and the video SDP of video user equipment to the video seat device, and sends audio frequency SDP and the video SDP of video seat device to video user equipment.

Fig. 4 A is a kind of flow chart of method in application scenarios 3 according to embodiment of the present invention Fig. 4.As shown in Fig. 4 A, this flow process comprises the steps:

After S401A, video user and video seat video calling, the video seat is current other thing, need to play to this video user and keep audio frequency and keep video, CTI issues HoldCall message to SoftACD, and call operation ability parameter operationAbilityType is carried in increase in this HoldCall message, and this parameter value is audioAndVideo.

S402A, SoftACD and video seat device advance bearer negotiation, send to the video seat device and heavily consult INVITE, carry virtual audio frequency SDP and virtual video SDP in SoftACD sends to the INVITE of video seat device.

S403A, SoftACD and video user equipment carry out bearer negotiation, send to video user equipment and heavily consult INVITE, carry audio frequency SDP and the video SDP of SoftACD playback equipment in SoftACD sends to the INVITE of video user equipment.

Particularly, can playback equipment be set on SoftACD, namely playback equipment belongs to SoftACD.

This moment, video user was listened holding tone, saw the maintenance video, and the video seat is seen last frame image last time, can't hear any voice.

Fig. 4 B is method another flow chart in application scenarios 3 according to embodiment of the present invention Fig. 4.As shown in Figure 4 B, this flow process comprises the steps:

If S401B is in video user and video seat video call process, video user only need to be listened holding tone, and the operationAbilityType parameter that CTI carries to the HoldCall message that SoftACD issues is audioOnly;

S402B, SoftACD and video seat device advance bearer negotiation, send to the video seat device and heavily consult INVITE, and carry the video SDP of video user equipment and virtual audio frequency SDP in this INVITE;

S403B, SoffACD and video user equipment carry out bearer negotiation, send to video user equipment and heavily consult INVITE, carry the video SDP of video seat device and the audio frequency SDP of SoftACD playback equipment in SoftACD issues the INVITE of video user equipment.

This moment, the user listened holding tone, and the video seat be can't hear any voice, video seat and user video intercommunication.

Fig. 4 C is method another flow chart in application scenarios 3 according to embodiment of the present invention Fig. 4.As shown in Fig. 4 C, this flow process comprises the steps:

If S401C is in video user and video seat voice-frequency telephony process, the video seat need to be play the operation video of some service to the user, the operationAbilityType parameter value that carries of the HoldCall message that issues to SoftACD of CTI is videoOnly, and carries the video file name of broadcast by the infoToSend parameter.

S402C, SoftACD send to the INVITE of video seat device to carry the audio frequency SDP of video user equipment and virtual video SDP.

S403C, SoftACD issue in the INVITE of video user equipment and carry the audio frequency SDP of video seat device and the video SDP of SoftACD playback equipment.

Video user and video seat normal voice conversation this moment, the video seat is seen last frame image last time, video user is seen the video file of broadcast.

Fig. 4 D is method another flow chart in application scenarios 3 according to embodiment of the present invention Fig. 4.In application scenarios 3, because the call capabilities of subscriber equipment may dynamically change, when CTI possibly can't in time obtain the current up-to-date call capabilities of subscriber equipment, for this situation, CTI can indicate SoftACD to keep operation or cancel the maintenance operation for the current maximum call capabilities that has of subscriber equipment in flow process shown in Fig. 4 D.As shown in Fig. 4 D, this flow process comprises the steps:

If the operationAbilityType parameter that the HoldCall message that S401D CTI issues is carried is allAbility, expression keeps current having the ability, as side's of being held (referring to the user), audio capability is arranged, do audio capability and keep, do sound, video maintenance if there is audio frequency+video capability the side of being held.

S402D, because the side of being held is video user equipment, and video user equipment has audio capability and video capability, video user equipment is done sound, video maintenance, so SoftACD sends to the INVITE of video seat device to carry virtual audio frequency SDP and virtual video SDP.

S403D, SoftACD issue video user equipment INVITE in carry audio frequency SDP and the video SDP of default SoftACD playback equipment.

This moment, video user was listened holding tone, saw the maintenance video.The video seat is seen last frame image last time, can't hear any voice.

Need to prove, the call operation ability parameter operationAbilityType that carries inside HoldCall message uses for the ability of the side of being held.

Below explanation is fetched and is kept operation, identical with the maintenance operation when fetching the maintenance operation, it is audio capability or video capability that the call operation ability parameter operationAbilityType that is carried by RetrieveCall message the inside specifies what fetch, or two kinds of abilities have.

Please again consult Fig. 4 A, the flow process of fetching audio capability and video capability comprises:

If the value of the call operation ability parameter operationAbilityType parameter that the RetrieveCall message that S404A CTI issues is carried is audioAndVideo, expression is fetched and is kept audio capability and video capability.Alternatively, also can only fetch audio capability or video capability in S404A, can be for example audioOnly or videoOnly with operationAbilityType parameter relative set.

S405A, SoftACD and video seat device advance bearer negotiation, send to the video seat device and heavily consult INVITE, with the more connection of new video seat device, carry audio frequency SDP and the video SDP of video user equipment at this INVITE.

S406A, SoftACD and video user equipment carry out bearer negotiation, send to video user equipment and heavily consult INVITE, carry audio frequency SDP and the video SDP of video seat device in SoftACD issues the INVITE of video user equipment.

After carrying out above-mentioned steps, video user equipment and video seat device have obtained mutually the other side's audio frequency and video SDP, connect thereby rebulid audio frequency and video, and this moment, video user and video seat carried out audio frequency, video calling.

Alternatively, when the operationAbilityType parameter of carrying when RetrieveCall message is set to audioOnly, carry the audio frequency SDP of video user equipment and virtual video SDP in the INVITE that SoftACD sends to the video seat device; SoftACD carries the audio frequency SDP of video seat device and the video SDP of default playback equipment in the INVITE of video user equipment transmission.

Alternatively, when the operationAbilityType parameter of carrying when RetrieveCall message is set to videoOnly, carry virtual audio frequency SDP and the video SDP of video user equipment in the INVITE that SoftACD sends to the video seat device; SoftACD carries the audio frequency SDP of default playback equipment and the video SDP of video seat device in the INVITE of video user equipment transmission.

Please again consult Fig. 4 B, the flow process of fetching audio capability comprises:

If the value of the call operation ability parameter operationAbilityType that the RetrieveCall message that S404B CTI issues is carried is audioOnly, the maintenance audio capability is fetched in expression.

Alternatively, when the operationAbilityType value was videoOnly, video capability was fetched in expression; When the operationAbilityType value is allAbility, represent to fetch current having the ability.

S405B, SoftACD send to audio frequency SDP and the video SDP that carries video user equipment in the INVITE of video seat device.

The INVITE that S406B, SoftACD issue video user equipment carries audio frequency SDP and the video SDP of video seat device.

This moment, video user and video seat carried out audio frequency, video calling.

Need to prove, the call operation ability parameter operationAbilityType that carries inside RetrieveCall message is the ability for the side of being retrieved.Go bail for when holding, need to all send INVITE to video seat device and video user equipment, purpose is to upgrade address, linking objective side, both sides, realizes the function of fetching maintenance of different abilities.

The flow process UAP of application scenarios 3 (Upper Address Part, the high address part) and the mutual and common maintenance between CTI with go bail for hold operation substantially flow process be consistent, be mainly that original HoldCall, RetrieveCall is for calling, can't process separately audio frequency, video capability.Increased now the concept of operational capacity.Different places is to send INVITE, and to carry SDP information different, and the maintenance that the change by SDP realizes different abilities is held operation with going bail for.

Method shown in embodiment of the present invention Fig. 4 and Fig. 4 A-Fig. 4 D, SoftACD reports by the backward CTI of call capabilities that analyzes subscriber equipment and seat device from call out, and the respective call ability that subscriber equipment and seat device are had that receives that CTI issues keeps or cancels and keep operation to indicate, and keep audio frequency by default playback equipment for the user plays and/or keep video, satisfied the demand in Video Applications scene 3.

Fig. 5 is the flow chart of another calling-control method of the embodiment of the present invention.The method is directed to the outgoing call situation in application scenarios 4, above-mentioned outgoing call refers to that SoftACD has exhaled subscriber equipment and seat device respectively, and set up connection between subscriber equipment and seat device, the executive agent of the method is SoftACD as shown in Figure 5, comprises the steps:

S501, SoftACD receive the outgoing call MakeCall message that CTI issues, and MakeCall message comprises ability indication and the called ability indication of outgoing call of outgoing call caller;

Particularly, the ability of outgoing call caller indication comprises with lower any: with the audio capability outgoing call, with audio capability and video capability outgoing call or with the maximum capacity outgoing call of caller; The indication of the called ability of outgoing call comprises with lower any: with the audio capability outgoing call, with audio capability and video capability outgoing call or with called maximum capacity outgoing call.

S502, according to the indication of the ability of described outgoing call caller and the called ability indication of outgoing call, the described caller of outgoing call and described called;

S503, upgrade described caller and described called beared information SDP separately, to set up described caller and described audio frequency between called connects or audio frequency and video connect.

Fig. 5 A is a kind of flow chart of method in application scenarios 4 according to embodiment of the present invention Fig. 5.As shown in Fig. 5 A, this scene is the scene of seat outgoing call video user, and the below attends a banquet as example as audio frequency to attend a banquet and explains, and the flow process of attending a banquet for audio frequency and video of attending a banquet is also that similarly this flow process comprises the steps:

The caller of carrying in the MakeCall message that S501A, CTI issue (audio frequency seat device) ability is audio capability, and called (video user equipment) ability is audio capability and video capability.

S502A, SoftACD detect the called ability calleeAbility that carries in MakeCall message and have audio capability and video capability, with Voice ﹠ Video ability outgoing call video user equipment, carry virtual audio frequency SDP and video SDP in sending to user's INVITE.

S503A, video user equipment return to audio frequency SDP and the video SDP of video user equipment alternatively to SoftACD by 100,180 or 200 message.

After S504A, this video user equipment success of outgoing call, send MakeCallResult message to the CTI platform;

It is audio frequency (Audio Only) that S505A, SoftACD detect the caller ability callerAbility that carries in MakeCall message, with audio capability outgoing call audio frequency seat device, only carry the audio frequency SDP of video user equipment at the INVITE that sends to the audio frequency seat device.

S506A, audio frequency seat device return to the audio frequency SDP of audio frequency seat device alternatively to SoftACD by 100,180 or 200 message.

S507A, SoftACD send in INVITE to video user equipment and carry the audio frequency SDP of audio frequency seat device and virtual video SDP.

After carrying out above-mentioned steps, user and seat can normal talkings, and user's video capability is retained, in order to can receive follow-up video messaging.

Particularly, when the seat outgoing call, SoftACD is according to caller ability and the called ability of carrying inside MakeCalll message, and indicating these outgoing call calling and called is to adopt the audio capability outgoing call, or audio capability and video capability outgoing call.The value of caller ability or called ability can comprise: audio capability, video capability, audio capability+video capability, whole ability.

If called with audio frequency+video capability outgoing call the time, when there is no video capability, SoftACD sends MakeCall message failure result to the CTI platform as called (user).

If called have audio frequency+video capability, caller is with the audio capability outgoing call, and namely the user has audio frequency+video capability and seat only has audio capability, and user's video capability can be retained.

If the value of calleeAbility and callerAbility is allAbility, the maximum capacity that expression has according to calling and called carries out outgoing call.

In prior art when the seat outgoing call, the user is according to both sides' negotiation result with ability after seat is connected, and be to specify according to the calleeAbility and the callerAbility that carry inside MakeCalll message in the embodiment of the present invention, controlled the expansion of business after being beneficial to by CTI.

Method shown in embodiment of the present invention Fig. 5 and Fig. 5 A, SoftACD indicates according to the ability of the outgoing call calling and called that the MakeCall message that CTI issues is carried, with audio capability, audio capability+video capability or maximum capacity difference outgoing call calling and called, audio frequency between calling and called connects or audio frequency and video connect to set up, thereby has satisfied the demand in application scenarios 4.

Fig. 6 is the flow chart of another calling-control method of the embodiment of the present invention.The method is directed to application scenarios 5, and the executive agent of the method is SoftACD as shown in Figure 6, comprises the steps:

S601, video user equipment and the first video attend a banquet set up conversation after, can't satisfy the service of this video user equipment if this first video is attended a banquet, to report the call capabilities of video user equipment and the first video seat device to CTI be audio capability and video capability to SoftACD;

S602, SoftACD receive the consultant call ConsultationCall message that described CTI issues, and described ConsultationCall message comprises the indication of consultant call ability.

Particularly, the indication of consultant call ability comprises that indication the first video seat device carries out consultant call with one of them second video seat device to the CTI appointment of audio capability, video capability, audio capability and video capability, the first video seat device maximum capacity.

S603, SoftACD are connected with default playback equipment video user equipment according to the indication of consultant call ability with the ability that is used for consultant call, the first video seat device is connected with the ability that is used for consultant call with the second seat device.

Particularly, the detailed process of S603 can comprise: when above-mentioned consultant call ability is designated as when carrying out consultant call with audio capability, SoftACD is according to this consultant call ability indication, the first video seat device is connected with audio capability with the second video seat device, the first video seat device is connected with video capability with video user equipment, video user equipment is connected with audio capability with default playback equipment;

Perhaps, when above-mentioned consultant call ability is designated as when carrying out consultant call with video capability, SoftACD is according to this consultant call ability indication, the first video seat device is connected with video capability with the second video seat device, the first video seat device is connected with audio capability with video user equipment, video user equipment is connected with video capability with default playback equipment; Perhaps,

When being designated as with audio capability and video capability, above-mentioned consultant call ability carries out consultant call, or when carrying out consultant call with the first video seat device maximum capacity, SoftACD is according to this consultant call ability indication, the first video seat device is connected with video capability with audio capability with the second video seat device, video user equipment is connected with video capability with audio capability with default playback equipment.

Particularly, the process of S603 specifically can comprise: when indication is carried out consultant call with audio capability, send virtual audio frequency SDP and the video SDP of video user equipment to the first video seat device, send the audio frequency SDP of default playback equipment and the video SDP of video seat device to video user equipment, send the audio frequency SDP of the first video seat device to the second video seat device, send the audio frequency SDP of the second video seat device and the video SDP of video user equipment to the first video seat device; Perhaps,

When indication is carried out consultant call with video capability, send the audio frequency SDP of video user equipment and virtual video SDP to the first video seat device, send the audio frequency SDP of the first video seat device and the video SDP of default playback equipment to video user equipment, send the video SDP of the first video seat device to the second video seat device, send the audio frequency SDP of video user equipment and the video SDP of the second video seat device to the first video seat device; Perhaps,

When indicating with audio capability and video capability, when perhaps the first video seat device maximum capacity carries out consultant call, send virtual audio frequency SDP and video SDP to the first video seat device, send audio frequency SDP and the video SDP of default playback equipment to video user equipment, send audio frequency SDP and the video SDP of the first video seat device to the second video seat device, send audio frequency SDP and the video SDP of the second video seat device to the first video seat device.

Fig. 6 A is a kind of flow chart of method in application scenarios 5 according to embodiment of the present invention Fig. 6.As shown in Figure 6A, this scene is that after video user and video seat are connected, the video seat is seeked advice from senior video seat (the second video seat) with audio capability and video capability, and this flow process comprises the steps:

Before carrying out S601A, SoftACD can report video user equipment and the current call capabilities separately of video seat to CTI by DeliveredEvent or EstablishedEvent, and this process has a detailed description in the aforementioned embodiment, is not repeated herein.

The call operation ability parameter operationAbilityType that carries in the ConsultationCall message that S601A, CTI issue to SoftACD is audioAndVideo;

S602A, SoftACD send to the INVITE of the first video seat device to carry SDP1, and this SDP1 comprises virtual audio frequency SDP and virtual video SDP.

Alternatively, if with the audio capability consulting, SDP1 comprises virtual audio frequency SDP and the video SDP of video user equipment; If with the video capability consulting, SDP1 comprises the audio frequency SDP of video user equipment and virtual video SDP.

Further, the first video seat device can be by audio frequency SDP and the video SDP of 200 message to SoftACD feedback the first video seat device.

Inner holding tone, the video playback of starting of S603A, SoftACD sends the audio frequency SDP that presets playback equipment and video SDP to subscriber equipment by INVITE.Sending to audio frequency SDP, video SDP in the SDP2 of subscriber equipment is all the SDP of playback equipment;

Alternatively, if with the audio capability consulting, SDP2 comprises the audio frequency SDP of default playback equipment and the video SDP of the first video seat device; If with the video capability consulting, SDP2 comprises the audio frequency SDP of the first seat device and the video SDP of default playback equipment.

After S604A, subscriber equipment were held to complete, SoftACD sent INVITE to the second video seat device (senior video seat), and senior video seat has been exhaled, and the SDP3 that carries in INVITE is the audio frequency and video SDP of the first video seat device;

Alternatively, if with the audio capability consulting, SDP3 comprises the audio frequency SDP of the first video seat device; If the video consulting, SDP3 comprises the video SDP of the first video seat device.

Further, the second video seat device can return to by 100,180 or 200 message audio frequency SDP and the video SDP of the second video seat device to SoftACD.

S605A, after senior video seat off-hook, send INVITE to the first video seat device and carry SDP4, this SDP4 comprises audio frequency SDP and the video SDP of senior seat device, upgrades the beared information of this first video seat device, makes senior seat and video seat audio frequency, video calling.

Rebulid the needed far-end beared information SDP of connection by changing seat device, make seat device to be connected on miscellaneous equipment.

This moment, the user listened holding tone, saw the maintenance video, senior seat and video seat audio frequency, video calling.

The below is that the related procedure of other several scenes is described:

After video seat and video user conversation, the video seat can't solve customer problem, needs consulting to senior video seat.Which kind of ability consulting CTI can specify by the call operation ability parameter operationAbilityType that carry ConsultationCall message the inside with.

(1) if when the value of operationAbilityType is audioOnly, the user is connected video capability and keep is connected with seat, user and seat can be seen the other side's image mutually, audio user is listened holding tone, seat is seeked advice from senior seat with audio capability, and seat and senior seat carry out voice call.

(2) if when the operationAbilityType value was audioAndVideo, the user listened holding tone, see the maintenance video, the video seat is seeked advice from senior seat with audio frequency+video capability, video seat and senior seat sound, video calling.

(3) if when the operationAbilityType value is allAbility, the user listens holding tone, see the maintenance video, the video seat is seeked advice from senior seat with the current maximum capacity that is had of controlling oneself, a kind of situation, if senior seat only has audio capability, video seat and senior seat carry out voice call; Another situation, if senior seat has sound, video capability, video seat and senior seat carry out sound, video calling.

method shown in embodiment of the present invention Fig. 6 and Fig. 6 A, SoftACD reports to CTI after the call capabilities that analyzes subscriber equipment and seat device, and indication is carried out consultant call with the call capabilities of appointment to the second seat device according to CTI, when carrying out consultant call, respectively to subscriber equipment, audio capability and the video capability of the first seat device and the second seat device operate respectively, upgrade audio frequency SDP and the video SDP of the said equipment, to control between the first seat device and the second seat device, between the first seat device and subscriber equipment, which kind of with call capabilities be connected respectively between subscriber equipment and default playback equipment.Therefore, said method has solved the demand in application scenarios 5, by with audio capability and video capability separate operation, is conducive to the expansion of business.

Fig. 7 is the flow chart of another calling-control method of the embodiment of the present invention.The method is directed to application scenarios 6, and the executive agent of the method is SoftACD as shown in Figure 7, comprises the steps:

S701, after video user and audio frequency and video are attended a banquet conversation, need third-party joining in this video calling, SoftACD receives the Conference Calling ConferenceCall message that described CTI issues, and described ConferenceCall message comprises that the meeting-place creates indication and whether keeps the spare capacity indication.

Particularly, described meeting-place creates to indicate and comprises audio frequency meeting-place establishment indication or video meeting-place establishment indication.

S702, SoftACD create indication according to this meeting-place and create audio frequency meeting-place or video meeting-place.

S703, when the meeting-place that creates is the video meeting-place, SoftACD is connected video user equipment, the first video seat device and the second video seat device with audio capability with the video meeting-place with video capability; Perhaps

S704, when the meeting-place that creates is the audio frequency meeting-place, indicate according to the described spare capacity that whether keeps, SoftACD is connected with described audio frequency meeting-place described video user equipment, described the first video seat device and described the second video seat device respectively with audio capability, and keeps or remove the video capability of described video user equipment, described the first video seat device and described the second video seat device.

Particularly, the detailed process of S703 and S704 can comprise: the Voice ﹠ Video SDP that sends described video meeting-place when the meeting-place that creates is the video meeting-place to described video user equipment, the first video seat device and the second video seat device; Perhaps,

When the meeting-place that creates is the audio frequency meeting-place, and the described spare capacity that whether keeps is designated as when keeping spare capacity, sends the audio frequency SDP in described audio frequency meeting-place and virtual video SDP to above-mentioned video user equipment, the first video seat device and the second video seat device; Perhaps,

When the meeting-place that creates is the audio frequency meeting-place, and the described spare capacity that whether keeps is designated as when not keeping spare capacity, and sending the audio frequency SDP in described audio frequency meeting-place and port numbers to described video user equipment, the first video seat device and the second video seat device is 0 video SDP.

Fig. 7 A is a kind of flow chart of method in application scenarios 6 according to embodiment of the present invention Fig. 7.As shown in Fig. 7 A, in this scene, subscriber equipment, seat device, senior seat device have video capability, CTI is videoConference to the value of the ConferenceAbilityType parameter that the ConferenceCall message that SoftACD issues is carried, the value of carrying the idleAbilityReserveInd parameter is reserveIdleAbility, and the method comprises:

S701A, video user and the conversation of video seat, video seat (the first video seat device) consulting is after senior video seat (the second video seat device), need to set up the video meeting-place and carry out Three-Way Calling, the ConferenceCall message that issues to SoftACD of CTI is carried the value videoConference of meeting-place ability parameter ConferenceAbilityType, creates the meeting-place type as the video meeting-place take indication.

S702A, SoftACD are according to CTI indication establishment video meeting-place.

S703A, SoftACD send carry video meeting-place SDP INVITE to subscriber equipment, carry the audio frequency and video SDP that SDP1 is the video meeting-place in INVITE, make subscriber equipment be connected with this video meeting-place, so far the user adds the video meeting-place.

S704A, SoftACD send carry meeting-place SDP INVITE to the first video seat device, carry the audio frequency and video SDP that SDP2 is the video meeting-place in INVITE, make the first seat device be connected with this video meeting-place, so far seat adds the video meeting-place.

S705A, SoftACD send and carry the INVITE of meeting-place SDP to the second video seat device, carry the audio frequency and video SDP that SDP3 is the video meeting-place in INVITE, make the second video seat device be connected with this video meeting-place, so far senior seat adds the video meeting-place.

S706A, after user, seat, senior seat all join the meeting-place, SoftACD reports the meeting-place event to the CTI platform.

User, seat, senior seat voice-frequency telephony at this moment, video can be seen tripartite's video.

Particularly, the meeting-place ability parameter ConferenceAbilityType that carry ConferenceCall message the inside comes specify creation audio frequency meeting-place or video meeting-place, audioConference refers to create the audio frequency meeting-place, and videoConference refers to create the video meeting-place.

ConferenceCall message the inside is carried idleAbilityReserveInd and is referred to whether keep spare capacity, its value represents to keep spare capacity when being reserveIdleAbility, its value represents not keep spare capacity when being noReserveIdleAbility.But only have video capability at the equipment that adds the meeting-place, and the meeting-place just can work and be used as when being the audio frequency meeting-place, whether be mainly the video capability of retaining device.Mainly to be embodied in when adding the meeting-place, the SDP that issues equipment is different, when if this value is reserveIdleAbility, the audio-frequency unit of SDP is audio frequency meeting-place SDP, video section is virtual SDP, port numbers is non-zero, and the video capability of this equipment is retained, and follow-uply can keep video to this device plays.When if this value is noReserveIdleAbility, the audio-frequency unit of SDP is the SDP in audio frequency meeting-place, and video section is virtual, but port numbers is 0, and this moment, user's video capability was switched, and all devices only has voice-frequency telephony.

Method shown in embodiment of the present invention Fig. 7 and Fig. 7 A can be set up tripartite or voice-frequency telephony in many ways or video calling, has satisfied the demand of application scenarios 6.

Fig. 8 is the flow chart of another calling-control method of the embodiment of the present invention.The method is directed to application scenarios 71 and scene 72, video user equipment and audio frequency are attended a banquet after conversation, senior video is attended a banquet to be needed in this conversation of intrusion, senior video is attended a banquet need to specify and is set up a meeting-place and carry out Three-Way Calling, the executive agent of the method is SoftACD as shown in Figure 8, comprises the steps:

S801, SoftACD receive the single step meeting SingleStepConference message that described CTI issues, and described SingleStepConference message comprises that the meeting-place creates indication;

Particularly, establishment indication in meeting-place comprises audio frequency meeting-place establishment indication or creates video meeting-place establishment indication.

S802, SoftACD create indication according to the meeting-place and create audio frequency meeting-place or video meeting-place;

S803, when the meeting-place that creates is the audio frequency meeting-place, with audio capability outgoing call the second video seat device, SoftACD is connected with the audio frequency meeting-place described the second video seat, described the first video seat and described video user equipment with audio capability, and described the first video seat is connected with video capability with described video user equipment; Perhaps,

S804, when the meeting-place that creates is the video meeting-place, with audio capability and described the second video seat device of video capability outgoing call, and SoftACD is connected described the second video seat, described the first video seat and described video user equipment with audio capability with described video meeting-place with video capability.

Particularly, the process of S803 can comprise: when the meeting-place that creates is the audio frequency meeting-place, with audio capability outgoing call the second video seat device, send the audio frequency SDP in audio frequency meeting-place to described the second video seat device, send the audio frequency SDP in described audio frequency meeting-place and the video SDP of described video user equipment to described the first video seat device, send the audio frequency SDP in described audio frequency meeting-place and the video SDP of described the first video seat device to described video user equipment; Perhaps,

Particularly, the process of S804 can comprise: when the meeting-place that creates is the video meeting-place, with audio capability and described the second video seat device of video capability outgoing call, send the Voice ﹠ Video SDP in described video meeting-place to described the second video seat device, described the first video seat device and described video user equipment.

Embodiment of the present invention method shown in Figure 8, the meeting-place of carrying in the single step meeting message that SoftACD issues according to CTI creates indication and creates specific capability type meeting-place, and with at least three correspondent to connect with the consistent call capabilities of this meeting-place capability class and this meeting-place, realize tripartite's voice-frequency telephony, video calling, audio frequency meeting-place monitoring or video meeting-place monitoring at least, thereby solved the demand in application scenarios 71 and 72, the expansion of business after being conducive to.

The flow chart of another calling-control method of Fig. 9 embodiment of the present invention.The method is directed to application scenarios 71 and scene 72, the method of Fig. 9 is compared with the method for Fig. 8, difference is, first, according to the meeting-place type that creates in Fig. 8, remove outgoing call the second seat device with the call capabilities consistent with the meeting-place type, and be to remove outgoing call the second seat device according to the outgoing call ability indication that the CTI issuing message carries in Fig. 9; In the second, Fig. 8 when the meeting-place that creates be the audio frequency meeting-place, and video user equipment and the first seat device are still to keep video to connect between video user equipment and the first seat device when all having idle video capability; And in Fig. 9 when the meeting-place that creates be the audio frequency meeting-place, and video user equipment, the first seat device and the second seat device can select to keep or remove the video capability of the free time of the said equipment when all having idle video capability.

The executive agent of the method is SoftACD as shown in Figure 9, comprises the steps:

S901, SoftACD receive the single step meeting SingleStepConference message that described CTI issues, and described SingleStepConference message comprises that the meeting-place creates the ability indication of indication, outgoing call the second video seat device and whether keeps the spare capacity indication;

S902, SoftACD create indication according to described meeting-place and create audio frequency meeting-place or video meeting-place;

S903, when the meeting-place that creates be the video meeting-place, and when the ability of described outgoing call the second video seat device is designated as with audio capability and described the second video seat device of video capability outgoing call, SoftACD is with audio capability and described the second video seat device of video capability outgoing call, and described the second video seat device, described the first video seat device and described video user equipment are connected with video capability with audio capability with the video meeting-place; Perhaps

S904, when the meeting-place that creates is the audio frequency meeting-place, and when the ability of described outgoing call the second video seat device is designated as with described the second video seat device of audio capability outgoing call, SoftACD is with described the second seat device of audio capability outgoing call, and with described the second video seat device, described the first video seat device and described video user equipment are connected with audio capability with the audio frequency meeting-place, and indicate according to the described spare capacity that whether keeps, keep or remove described the second video seat device, the video capability of described the first video seat device and described video user equipment.

Particularly, the detailed process of S903 can comprise: the ability that is video meeting-place and described outgoing call the second video seat device when the meeting-place that creates is designated as with audio capability and described the second video seat device of video capability outgoing call, send virtual audio frequency SDP and video SDP so that the second video seat device has been exhaled to described the second video seat device, and after above-mentioned the second video seat success of outgoing call respectively to audio frequency SDP and the video SDP in described the second video seat device, described the first video seat device and the described video user equipment described video of transmission meeting-place; Perhaps,

particularly, the detailed process of S904 can comprise: when the meeting-place that creates is the audio frequency meeting-place, and the ability of described outgoing call the second video seat device is designated as with described the second video seat device of audio capability outgoing call, the described spare capacity that whether keeps is designated as when not keeping spare capacity, send virtual audio frequency SDP so that this second video seat device has been exhaled to described the second video seat device, and after above-mentioned the second video seat device success of outgoing call respectively to described the second video seat device, it is 0 video SDP that described the first video seat device and described video user equipment send the audio frequency SDP in described audio frequency meeting-place and port numbers, perhaps send the audio frequency SDP in described audio frequency meeting-place and virtual video SDP.

Fig. 9 A is a kind of flow chart of method in application scenarios 7 according to embodiment of the present invention Fig. 9.As shown in Fig. 9 A, be divided into two kinds of situations in this scene, a kind of is listen mode, a kind of is the intrusion pattern.Be the SingleStepConfRequest message participationType value of carrying for silent is listen mode, be the intrusion pattern when being worth for active.

(1), listen mode:

When listen mode only has user and seat to have simultaneously video capability and video calling, just accept the monitoring in video meeting-place.Listen mode is the audio frequency and video conversation of senior seat monitoring users and seat, is consistent before user and seat effect and monitoring before and after monitoring.

For example, in video user and video seat communication process, senior seat can be monitored scene by field mode with audio frequency, and flow process comprises:

S901A, CTI platform send SingleStepConfRequest message to SoftACD, and the ConferenceAbilityType parameter value that carry the message the inside is audioConference, create the audio frequency meeting-place with indication SoftACD and monitor.

S902A, SoftACD create indication according to the meeting-place of carrying in this message, create the audio frequency meeting-place to monitor.

S903A, SoftACD are according to the type in meeting-place, outgoing call the second video seat device (senior seat) is the audio frequency meeting-place due to what create, and SoftACD is with the audio capability outgoing call, send INVITE to the second seat device, carrying SDP1 in message is virtual audio frequency SDP.

S904A, after outgoing call the second video seat device (senior attending a banquet) success, SoftACD sends SingleStepConfResult message to CTI.

S905A, SoftACD send INVITE to the second seat device (senior seat), and the SDP1 that carries is the audio frequency SDP in audio frequency meeting-place.

S906A, SoftACD send INVITE to the first seat device (seat), and the audio-frequency unit of SDP2 is the audio frequency SDP in audio frequency meeting-place, and video section is the video SDP of video user equipment.

S907A, SoftACD send INVITE to video user equipment (user), and the audio-frequency unit of SDP3 is the audio frequency SDP in audio frequency meeting-place, and video section is the video SDP of the first seat device.

S908A, after user, seat, senior seat all add the audio frequency meeting-place, SoftACD reports ConferenceEvent to CTI.

Before and after monitoring this moment, user and seat see with hear with monitor before be consistent.Senior attend a banquet monitoring users and seat conversation, user and seat keep original audio frequency and video conversation.

For example in video user and video seat communication process, senior seat is monitored scene with the video council field mode, please again consults Fig. 9 A:

S901A, CTI platform send single step meeting SingleStepConfRequest message to SoftACD, and the ConferenceAbilityType that this message is carried is videoConference, create the video meeting-place with indication and monitor.

S902A, SoftACD create indication according to the meeting-place of carrying in this message, create the video meeting-place to monitor.

S903A, SoftACD are according to the type in meeting-place, and outgoing call the second seat device (senior seat) is the video meeting-place due to what create, and SoftACD is with audio capability and video capability outgoing call.

S904A, after outgoing call the second seat device (senior seat) success, SoftACD sends SingleStepConfResult message to CTI.

S905A, SoftACD send INVITE to the second seat device (senior seat), and the SDP2 that carries is audio frequency SDP and the video SDP in video meeting-place.

S906A, SoftACD send INVITE to the first seat device (seat), and the sound of the SDP3 that carries, video section are audio frequency SDP and the video SDP in video meeting-place.

S907A, SoftACD send INVITE to subscriber equipment (user), and the sound of the SDP4 that carries, video section are audio frequency SDP and the video SDP in video meeting-place.

S908A, after user, seat, senior seat all add the video meeting-place, SoftACD sends ConferenceEvent to CTI.

SoftACD does special processing in the meeting-place, and the user adds the image of only seeing seat behind the meeting-place, only sees user's image when seat adds the meeting-place, and senior seat can be seen the video image of user and seat.

After monitoring this moment, user and seat see with hear with monitor before be consistent.Senior attend a banquet monitoring users and the conversation of seat audio frequency and video, user and seat keep original audio frequency and video conversation.

(2) intrusion pattern

The type in intrusion pattern establishment meeting-place is relevant with the ConferenceAbilityType that carries, and what create when its value is audioConference is the audio frequency meeting-place, and its value is the video meeting-place for the videoConference establishment.Indicate with which type of ability intrusion equipment (senior seat) has been exhaled by carrying calleeAbility, audioOnly is audio capability, and audioAndVideo is audio frequency+video capability.Refer to whether keep spare capacity by carrying idleAbilityReserveInd, idleAbilityReserveInd field and meeting-place are processed and are consistent under the intrusion pattern.

If what create is the audio frequency meeting-place, the audio frequency with user, seat, senior seat all joins in the meeting-place, and video keeps original connection.If what create is the video meeting-place, and adds the equipment in meeting-place that video capability is arranged, audio frequency, video are all joined in the meeting-place, if there is no video capability, audio frequency is joined in the meeting-place.This moment, four pictures were play in the meeting-place, and each video equipment can be seen the image of other video equipment.

For example after video user, the conversation of video seat, senior seat creates the video council field mode, retaining device spare capacity scene with the video capability intrusion.The value of namely carrying calleeAbility is audioAndVideo, and the ConferenceAbilityType value is videoConference, and the idleAbilityReserveInd value is reserveIdleAbility.Please again consult Fig. 9 A:

S901A, CTI platform send SingleStepConfRequest message to SoftACD, the ConferenceAbilityType that carry the message the inside is that the value of videoConference, calleeAbility is audioAndVideo, with indication SoftACD establishment video meeting-place.

S902A, SoftACD be according to the videoConference that carries in this message, creates the video meeting-place.

The value of S903A, the calleeAbility that carries due to SingleStepConfRequest message the inside is audioAndVideo, SoftACD carries SDP1 inside INVITE and comprises with virtual audio frequency SDP and virtual video SDP with audio capability and the senior seat of video capability outgoing call.

After S904A, the senior seat success of outgoing call, SoftACD sends SingleStepConfResult message to CTI.

S905A, SoftACD send INVITE to senior seat, and the audio-frequency unit of SDP2 is the audio frequency SDP in video meeting-place, and video section is the video SDP in video meeting-place.

S906A, SoftACD send INVITE to seat, and the audio-frequency unit of SDP3 is the audio frequency SDP in video meeting-place, and video section is the video SDP in video meeting-place.

S907A, SoftACD send INVITE to the user, and the audio-frequency unit of SDP4 is the audio frequency SDP in video meeting-place, and video section is the video SDP in video meeting-place.

After intrusion this moment, user, seat, senior seat voice are conversed mutually, and user, seat, senior seat are seen the meeting-place displaying video, and the video image of user, seat, senior seat is arranged inside video.

For example after the conversation of video user, video seat, senior video seat is with the audio capability intrusion, and creating audio frequency can field mode, and the scene of retaining device spare capacity not.The value of namely carrying calleeAbility is audioOnly, and the ConferenceAbilityType value is audioConference, and the idleAbilityReserveInd value is noReserveIdleAbility.Please again consult Fig. 9 A:

S901A, CTI platform send SingleStepConfRequest message to SoftACD, and the ConferenceAbilityType that carry the message the inside is audioConference, and indication creates the audio frequency meeting-place.

S902A, SoftACD establishment audio frequency meeting-place.

S903A, because the value of calleeAbility is audioOnly, SoftACD is with the senior seat of audio capability outgoing call, it is virtual audio frequency SDP that SDP1 is carried in the INVITE the inside.

After S904A, the senior seat success of outgoing call, SoftACD sends SingleStepConfResult message to CTI;

S905A, transmission INVITE are to senior seat, and the audio-frequency unit of the SDP2 that carries is the audio frequency SDP in audio frequency meeting-place, and the port numbers of video SDP is 0 (being that video capability is cut off).

S906A, send INVITE to seat, the audio-frequency unit of the SDP3 that carries is that the audio frequency SDP in audio frequency meeting-place and the port numbers of video SDP are 0.

S907A, send INVITE to the user, it is 0 video SDP that the SDP4 that carries comprises the audio frequency SDP in meeting-place and port numbers.

S908A, after all participants (user, seat, senior seat) add the meeting-place, SoftACD sends ConferenceEvent to CTI.

After intrusion this moment, user, seat, senior seat audio frequency are conversed mutually, and the video capability of user, seat is cut off.

Method shown in embodiment of the present invention Fig. 9 and Fig. 9 A, call capabilities according to subscriber equipment, the first seat device and the second seat device, set up corresponding audio frequency meeting-place or video meeting-place to carry out Three-Way Calling, realized that also the second seat device carries out audio select or video monitor to subscriber equipment and the first seat device, and the ability to the said equipment free time of having realized keeps or removes operation, solve by the way the problem in application scenarios 7_1 and 7_1, supported more complicated Video Applications scene.

Figure 10 is the flow chart of another calling-control method of the embodiment of the present invention.The method is directed to application scenarios 8, and the executive agent of the method is SoftACD as shown in figure 10, comprises the steps:

S1001, the described audio user equipment of reception are by heavily consulting Invite message capability change indication;

For example, audio user equipment can be by carrying video SDP in Invite message, and indication has increased video capability.

S1002, handling capacity change event AbilityChangeEvent and report the call capabilities of described audio user equipment to change over audio capability and video capability from audio capability to described CTI;

HoldCall message is called out in the maintenance that S1003, the described CTI of reception issue, and described maintenance is called out HoldCall message and comprised that the call capabilities that video capability is kept keeps indication;

S1004, keep indication according to described call capabilities, described audio user equipment is connected with audio capability with described audio frequency seat device, and described audio user equipment is connected with video capability with the playback equipment of presetting.

Particularly, the detailed process of S1004 can comprise: keep indication according to described call capabilities, send the audio frequency SDP of described audio frequency seat device and the video SDP of default playback equipment to described audio user equipment.

Figure 10 A is a kind of flow chart of method in application scenarios 8 according to embodiment of the present invention Figure 10.As shown in Figure 10 A, the method comprises:

After S1001A, user and the conversation of audio frequency seat, wherein the user only had audio capability originally, and after receiving that the user carries the INVITE of video capability, the user initiatively switches to video capability from audio capability.

S 1002A, SoftACD send the AbilityChangeEvent event, and the ability of notice CTI platform user changes.

S1003A, CTI find that user capability switches to video capability from audio capability, and video capability is idle now, and CTI issues control command control SoftACD and plays the maintenance video to the user, and the value of operationAbilityType parameter is videoOnly.

S1004A, SoftACD send INVITE to video user equipment, and this INVITE comprises SDP1, the audio frequency SDP that carries in SDP1 or the audio frequency SDP of seat device, and video section is the SDP of video playback apparatus.User and seat conversation this moment, and watch the maintenance video.

Method shown in embodiment of the present invention Figure 10 and Figure 10 A, after SoftACD switches to the audio frequency and video ability by the call capabilities when subscriber equipment from audio capability, call capabilities after in time CTI report of user renewal of the equipment, thereby the SoftACD video capability newly-increased according to the operation equipment for indicating user of CTI operates separately, subscriber equipment is connected to default playback equipment with the startup video playback with video capability, thereby has satisfied the demand in application scenarios 8.

In a word, the embodiment of the present invention mainly has the following advantages or technique effect: 1, message interface, call model change very little; 2, strengthen the CSTA agreement and support complicated Video Applications scene; 3, make the CSTA agreement that video, audio capability are separated from call out, separate operation, the expansion of video traffic after being conducive to.In a word, the technical scheme that the embodiment of the present invention provides is by analyzing audio frequency, video capability from call out, controlled to call out by original CTI and be transformed into the control call capabilities, realize audio frequency, video separate operation, more complicated video traffic application scenarios is supported in the expansion of business after being beneficial to.This is just as soft switch (SoftSwitch) platform, will control to be separated the same with carrying.

The embodiment of the present invention also provides a kind of call control apparatus.Figure 11 is the functional block diagram of the call control apparatus of the embodiment of the present invention.As shown in figure 11, this device comprises:

Call capabilities reports unit 1101, is used for reporting the call capabilities of caller and called call capabilities to computer telecommunication integrated device CTI, and described call capabilities comprises audio capability and/or video capability;

Call capabilities operating unit 1102 is used for the operation indication to the call capabilities of described caller and described called call capabilities of carrying according to the message that described CTI issues, and call capabilities and the described called call capabilities of described caller operated respectively.

The operation principle of this device 10 and call capabilities report in the concrete function embodiment of the method in front of unit 101, call capabilities operating unit 102 and describe in detail, do not give unnecessary details inferior.

The square device of the embodiment of the present invention, by audio capability and the video capability of separating/analyzing calling and called from call out, and report the call capabilities of calling and called to the CTI platform, make the CTI platform be transformed into the control call capabilities from controlling to call out, and indicate according to the control for call capabilities that the message that the CTI platform issues is carried, audio capability, video capability separate operation or the control of realization to calling out, satisfied the video requirement that following Video Applications scene day increases, the expansion of business after being conducive to, and support more complicated Video Applications scene.

Further: whether keep the spare capacity indication when operation is designated as, caller is video user equipment, and called is the audio frequency seat device;

The call capabilities operating unit of the embodiment of the present invention, specifically be used for receiving the Route Selection RouterSelect message that CTI issues, carried the indication that whether keeps spare capacity in RouterSelect message, and according to the above-mentioned indication that whether keeps spare capacity, video user equipment is connected with audio capability with described audio frequency seat device, and keeps or remove the video capability of video user equipment.

Further: keep indication when operation is designated as call capabilities, caller is video user equipment, and called is the audio frequency seat device;

The call capabilities operating unit of the embodiment of the present invention, specifically be used for receiving the maintenance calling HoldCall message that CTI issues, this HoldCall message comprises that the call capabilities that video capability is kept keeps indication, and keep indication according to call capabilities, video user equipment is connected with audio capability with the audio frequency seat device, and video user equipment is connected with video capability with default playback equipment.

Further: keep indication when operation is designated as call capabilities, caller is video user equipment, and called is the video seat device;

The call capabilities operating unit of the embodiment of the present invention, specifically be used for receiving the maintenance calling HoldCall message that CTI issues, HoldCall message comprises that call capabilities keeps indication, call capabilities keep indication comprise following any one: keep audio capability, keep video capability, keep audio capability and video capability or keep described called maintained the having the ability that do not have; Keep indication according to call capabilities, with being connected with maintained call capabilities of video user equipment and default playback equipment.Further: above-mentioned call capabilities operating unit, also be used for to receive fetching that CTI issues and call out RetrieveCall message, RetrieveCall message comprises that call capabilities fetches indication, call capabilities fetch indication comprise following any one: fetch audio capability, fetch video capability, fetch audio capability and video capability or fetch current having the ability; Fetch indication according to call capabilities, video user equipment is connected with the call capabilities that is retrieved at least with the video seat device.

Further: when operation is designated as consultant call ability indication, caller is video user equipment, described called be the first video seat device,

The call capabilities operating unit of the embodiment of the present invention, specifically be used for receiving the consultant call ConsultationCall message that CTI issues, ConsultationCall message comprises the indication of consultant call ability, and the indication of consultant call ability comprises that indication the first video seat device carries out consultant call with one of them second video seat device to the CTI appointment of audio capability, video capability, audio capability and video capability or the first video seat device maximum capacity; According to the indication of consultant call ability, video user equipment is connected with the ability that is used for consultant call with default playback equipment, the first video seat device is connected with the ability that is used for consultant call with the second seat device.

Further: the call capabilities operating unit of the embodiment of the present invention also is used for: receive the Conference Calling ConferenceCall message that CTI issues, carried the meeting-place establishment in ConferenceCall message and indicated, the meeting-place creates indication and comprises that audio frequency meeting-place establishment is indicated or video meeting-place establishment indication; Create indication according to the meeting-place and create audio frequency meeting-place or video meeting-place; When the meeting-place that creates is the video meeting-place, video user equipment, the first video seat device and the second video seat device are connected with video capability with audio capability with the video meeting-place respectively; Perhaps, when the meeting-place that creates is the audio frequency meeting-place, also carried in ConferenceCall message and whether kept the spare capacity indication, and indicate according to the described spare capacity that whether keeps, video user equipment, the first video seat device and the second video seat device are connected with audio capability with described audio frequency meeting-place respectively, and keep or remove the video capability of described video user equipment, the first video seat device and the second video seat device.

Further: as shown in figure 12, the embodiment of the present invention also comprise the first meeting-place processing unit 103, be used for receiving the single step meeting SingleStepConference message that CTI issues, SingleStepConference message comprises that the meeting-place creates indication, and the meeting-place creates indication and comprises that the audio frequency meeting-place creates indication or the video meeting-place creates indication; Create indication according to the meeting-place and create audio frequency meeting-place or video meeting-place; When the meeting-place that creates is the audio frequency meeting-place, with audio capability outgoing call the second video seat device, the second video seat device, the first video seat device and video user equipment are connected with audio capability with the audio frequency meeting-place respectively, and the first video seat device is connected with video capability with video user equipment; Perhaps, when the meeting-place that creates is the video meeting-place, with audio capability and video capability outgoing call the second video seat device, and the second video seat device, the first video seat device and video user equipment are connected with video capability with audio capability with the video meeting-place respectively.

Further: as shown in figure 12, the embodiment of the present invention also comprise the second meeting-place processing unit 104, be used for receiving the single step meeting SingleStepConference message that CTI issues, carry the meeting-place in SingleStepConference message and create the ability indication of indication, outgoing call the second video seat device and whether keep the spare capacity indication; Create indication according to the meeting-place and create audio frequency meeting-place or video meeting-place; When the meeting-place that creates is the video meeting-place, and when the ability of outgoing call the second video seat device is designated as with audio capability and video capability outgoing call the second video seat device, with audio capability and video capability outgoing call the second video seat device, and with the second video seat device, the first video seat device and state video user equipment and be connected with video capability with audio capability with described video meeting-place respectively; Perhaps the meeting-place when establishment is the audio frequency meeting-place, and when the ability of outgoing call the second video seat device is designated as with described the second video seat device of audio capability outgoing call, with audio capability outgoing call the second seat device, and the second video seat device, the first video seat device and video user equipment are connected with audio capability with described audio frequency meeting-place respectively, and indicate according to the described spare capacity that whether keeps, keep or remove the video capability of the second video seat device, the first video seat device and video user equipment.

Further: the described call capabilities of the embodiment of the present invention reports the unit, also be used for receiving the outgoing call MakeCall message that CTI issues, MakeCall message comprises ability indication and the called ability indication of outgoing call of outgoing call caller, and the ability of outgoing call caller is indicated and comprised with lower any: with the audio capability outgoing call, with audio capability and video capability outgoing call, with the maximum capacity outgoing call of caller; The indication of the called ability of outgoing call comprises with lower any: with the audio capability outgoing call, with audio capability and video capability outgoing call, with called maximum capacity outgoing call; According to ability indication and the called ability indication of outgoing call of outgoing call caller, outgoing call caller and called; Upgrade caller and called separately beared information SDP, to set up caller and described audio frequency between called connects or audio frequency and video connect.

The operation principle of each device that the embodiment of the present invention provides and the function of each unit describe in detail in embodiment of the method, are not repeated herein.The device that the embodiment of the present invention provides, analyze audio frequency, video capability from call out, control calling by original CTI and be transformed into the control call capabilities, realize audio frequency, video separate operation or control, more complicated Video Applications scene is supported in the expansion of business after being beneficial to.

Need to prove, in the execution mode of above call control apparatus, the division of each functional module only illustrates, can be as required in practical application, such as the facility of the configuration requirement of corresponding hardware or software implemented is considered, completed by different functional modules and above-mentioned functions is distributed, the internal structure that is about to the processing unit of described video file broadcast is divided into different functional modules, to complete all or part of function described above.And in practical application, corresponding functional module in the present embodiment can be to be realized by corresponding hardware, also can be completed by the corresponding software of corresponding hardware implement, for example, aforesaid call capabilities operating unit 1102, can be for having the hardware of carrying out aforementioned functional, such as, processor with this specific acquisition capability, and other the general processing unit that can carry out aforementioned functional, thereby can be also to carry out the general receiving equipment that the corresponding computer program is completed aforementioned functional, perhaps other hardware devices.

The embodiment of the present invention also provides a kind of call control system, and Figure 13 is the functional block diagram of a kind of call control system of the embodiment of the present invention.As shown in figure 13, this system comprises:

Call control apparatus 1301 is used for reporting the call capabilities of caller and called call capabilities to computer telecommunication integrated device CTI, and described call capabilities comprises audio capability and/or video capability; And the message that issues according to the described CTI operation indication to the call capabilities of described caller and described called call capabilities of carrying, call capabilities and the described called call capabilities of described caller operated respectively;

Computer telecommunication integrated device CTI1302 is used for receiving call capabilities and the described called call capabilities of the described caller that described call control apparatus reports, and described call capabilities comprises audio capability and/or video capability; According to call capabilities and the described called call capabilities of described caller, the generating run indication; Issue the message of carrying described operation indication to described call control apparatus.

The system of the embodiment of the present invention, by audio capability and the video capability of separating/analyzing calling and called from call out, and be transformed into the control call capabilities from controlling to call out, audio capability, video capability separate operation or the control of realization to calling out, satisfied the video requirement that following Video Applications scene day increases, the expansion of business after being conducive to, and support more complicated Video Applications scene.

One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to complete by computer program, described program can be stored in a computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (Random Access Memory, RAM) etc.

Above embodiment only in order to the technical scheme of the embodiment of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the embodiment of the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the embodiment of the present invention.

Claims

1. a calling-control method, is characterized in that, described method comprises:

Report the call capabilities of caller and called call capabilities to computer telecommunication integrated device CTI, described call capabilities comprises audio capability and/or video capability;

The operation indication to the call capabilities of described caller and described called call capabilities that the message that issues according to described CTI is carried operates respectively call capabilities and the described called call capabilities of described caller.

2. method according to claim 1, its spy is, described operation is designated as whether keep the spare capacity indication, described caller is video user equipment, described called be the audio frequency seat device;

The operation indication to the call capabilities of described caller and described called call capabilities that the described message that issues according to described CTI is carried operates respectively the call capabilities of described caller and described called call capabilities and comprises:

Receive the Route Selection RouterSelect message that described CTI issues, carried the indication that whether keeps spare capacity in described RouterSelect message;

According to the described indication that whether keeps spare capacity, described video user equipment is connected with audio capability with described audio frequency seat device, and keeps or remove the video capability of described video user equipment.

3. method according to claim 1, is characterized in that, described operation is designated as call capabilities and keeps indication, and described caller is video user equipment, described called be the audio frequency seat device;

Receive the maintenance calling HoldCall message that described CTI issues, described HoldCall message comprises that the call capabilities that video capability is kept keeps indication;

Keep indication according to described call capabilities, described video user equipment is connected with audio capability with described audio frequency seat device, and described video user equipment is connected with video capability with default playback equipment.

4. method according to claim 1, its spy is, described operation is designated as call capabilities and keeps indication, described caller is video user equipment, described called be the video seat device;

Receive the maintenance calling HoldCall message that described CTI issues, described HoldCall message comprises that call capabilities keeps indication, described call capabilities keep indication comprise following any one: keep audio capability, keep video capability, keep audio capability and video capability or keep described called maintained the having the ability that do not have;

Keep indication according to described call capabilities, described video user equipment is connected with maintained call capabilities with default playback equipment.

5. method according to claim 4, is characterized in that, described method also comprises:

Receive fetching that described CTI issues and call out RetrieveCall message, described RetrieveCall message comprises that call capabilities fetches indication, described call capabilities fetch indication comprise following any one: fetch audio capability, fetch video capability, fetch audio capability and video capability or fetch current having the ability;

Fetch indication according to described call capabilities, described video user equipment is connected with the call capabilities that is retrieved at least with described video seat device.

6. method according to claim 1, is characterized in that, described operation is designated as consultant call ability indication, and described caller is video user equipment, described called be the first video seat device;

The operation indication to the call capabilities of described caller and described called call capabilities that the described message that issues according to described CTI is carried operates respectively described caller and described called call capabilities and comprises:

Receive the consultant call ConsultationCall message that described CTI issues, described ConsultationCall message comprises the indication of consultant call ability, and described consultant call ability indication comprises that described the first video seat device of indication carries out consultant call with one of them second video seat device to described CTI appointment of audio capability, video capability, audio capability and video capability or described the first video seat device maximum capacity;

According to described consultant call ability indication, described video user equipment is connected with the ability that is used for consultant call with default playback equipment, described the first video seat device is connected with the ability that is used for consultant call with described the second video seat device.

7. method according to claim 6, is characterized in that, described method also comprises:

Receive the Conference Calling ConferenceCall message that described CTI issues, carried the meeting-place establishment in described ConferenceCall message and indicated, described meeting-place creates indication and comprises that audio frequency meeting-place establishment is indicated or video meeting-place establishment indication;

Create indication according to described meeting-place and create audio frequency meeting-place or video meeting-place;

When the meeting-place that creates is the video meeting-place, video user equipment, the first video seat device and the second video seat device are connected with video capability with audio capability with described video meeting-place respectively; Perhaps,

When the meeting-place that creates is the audio frequency meeting-place, also carried in described ConferenceCall message and whether kept the spare capacity indication, and indicate according to the described spare capacity that whether keeps, described video user equipment, described the first video seat device and described the second video seat device are connected with audio capability with described audio frequency meeting-place respectively, and keep or remove the video capability of described video user equipment, described the first video seat device and described the second video seat device.

8. method according to claim 1, is characterized in that, described caller is video user equipment, described called be the first video seat device, described method also comprises:

Receive the single step meeting SingleStepConference message that described CTI issues, described SingleStepConference message comprises that the meeting-place creates indication, and described meeting-place creates indication and comprises that the audio frequency meeting-place creates indication or the video meeting-place creates indication;

When the meeting-place that creates is the audio frequency meeting-place, with audio capability outgoing call the second video seat device, described the second video seat device, described the first video seat device and described video user equipment are connected with audio capability with described audio frequency meeting-place respectively, and described the first video seat device is connected with video capability with described video user equipment; Perhaps,

When the meeting-place that creates is the video meeting-place, with audio capability and described the second video seat device of video capability outgoing call, and described the second video seat device, described the first video seat device and described video user equipment are connected with video capability with audio capability with described video meeting-place respectively.

9. method according to claim 1, is characterized in that, described caller is video user equipment, described called be the first video seat device, described method also comprises:

Receive the single step meeting SingleStepConference message that described CTI issues, carry the meeting-place in described SingleStepConference message and create the ability indication of indication, outgoing call the second video seat device and whether keep the spare capacity indication;

When the meeting-place that creates is the video meeting-place, and when the ability of described outgoing call the second video seat device is designated as with audio capability and described the second video seat device of video capability outgoing call, with audio capability and described the second video seat device of video capability outgoing call, and described the second video seat device, described the first video seat device and described video user equipment are connected with video capability with audio capability with described video meeting-place; Perhaps

When the meeting-place that creates is the audio frequency meeting-place, and when the ability of described outgoing call the second video seat device is designated as with described the second video seat device of audio capability outgoing call, with described the second video seat device of audio capability outgoing call, and described the second video seat device, described the first video seat device and described video user equipment are connected with audio capability with described audio frequency meeting-place, and indicate according to the described spare capacity that whether keeps, keep or remove the video capability of described the second video seat device, described the first video seat device and described video user equipment.

According to claim 1 to 9 arbitrary described method, it is characterized in that, described method also comprises:

Receive the outgoing call MakeCall message that described CTI issues, described MakeCall message comprises ability indication and the called ability indication of outgoing call of outgoing call caller, and the ability of described outgoing call caller is indicated and comprised with lower any: with the audio capability outgoing call, with audio capability and video capability outgoing call, with the maximum capacity outgoing call of described caller; The indication of the called ability of described outgoing call comprises with lower any: with the audio capability outgoing call, with audio capability and video capability outgoing call, with described called maximum capacity outgoing call;

According to ability indication and the called ability indication of outgoing call of described outgoing call caller, the described caller of outgoing call and described called;

Upgrade described caller and described called beared information SDP separately, to set up described caller and described audio frequency between called connects or audio frequency and video connect.

11. a call control apparatus is characterized in that, described device comprises:

Call capabilities reports the unit, is used for reporting the call capabilities of caller and called call capabilities to computer telecommunication integrated device CTI, and described call capabilities comprises audio capability and/or video capability;

The call capabilities operating unit is used for the operation indication to the call capabilities of described caller and described called call capabilities of carrying according to the message that described CTI issues, and call capabilities and the described called call capabilities of described caller operated respectively.

12. device according to claim 11 is characterized in that, described operation is designated as whether keep spare capacity indication, and described caller is video user equipment, described called be the audio frequency seat device;

Described call capabilities operating unit, concrete for receiving the Route Selection RouterSelect message that described CTI issues, carried the indication that whether keeps spare capacity in described RouterSelect message, and according to the described indication that whether keeps spare capacity, described video user equipment is connected with audio capability with described audio frequency seat device, and keeps or remove the video capability of described video user equipment.

13. device according to claim 11 is characterized in that, described operation is designated as call capabilities and keeps indication, and described caller is video user equipment, described called be the audio frequency seat device;

Described call capabilities operating unit, specifically be used for receiving the maintenance calling HoldCall message that described CTI issues, described HoldCall message comprises that the call capabilities that video capability is kept keeps indication, and keep indication according to described call capabilities, described video user equipment is connected with audio capability with described audio frequency seat device, and described video user equipment is connected with video capability with default playback equipment.

14. device according to claim 11 is characterized in that, described operation is designated as call capabilities and keeps indication, and described caller is video user equipment, described called be the video seat device;

Described call capabilities operating unit, specifically be used for receiving the maintenance calling HoldCall message that described CTI issues, described HoldCall message comprises that call capabilities keeps indication, described call capabilities keep indication comprise following any one: keep audio capability, keep video capability, keep audio capability and video capability or keep described called maintained the having the ability that do not have; Keep indication according to described call capabilities, with being connected with maintained call capabilities of described video user equipment and default playback equipment.

15. device according to claim 14, it is characterized in that, described call capabilities operating unit, also be used for receiving fetching that described CTI issues and call out RetrieveCall message, described RetrieveCall message comprises that call capabilities fetches indication, described call capabilities fetch indication comprise following any one: fetch audio capability, fetch video capability, fetch audio capability and video capability or fetch current having the ability; Fetch indication according to described call capabilities, described video user equipment is connected with the call capabilities that is retrieved at least with described video seat device.

16. device according to claim 11 is characterized in that, described operation is designated as consultant call ability indication, and described caller is video user equipment, described called be the first video seat device,

Described call capabilities operating unit, concrete for receiving the consultant call ConsultationCall message that described CTI issues, described ConsultationCall message comprises the indication of consultant call ability, and described consultant call ability indication comprises that described the first video seat device of indication carries out consultant call with one of them second video seat device to described CTI appointment of audio capability, video capability, audio capability and video capability or described the first video seat device maximum capacity; According to described consultant call ability indication, described video user equipment is connected with the ability that is used for consultant call with default playback equipment, described the first video seat device is connected with the ability that is used for consultant call with described the second video seat device.

17. device according to claim 16 is characterized in that, described call capabilities operating unit also is used for:

Receive the Conference Calling ConferenceCall message that described CTI issues, carried the meeting-place establishment in described ConferenceCall message and indicated, described meeting-place creates indication and comprises that audio frequency meeting-place establishment is indicated or video meeting-place establishment indication; Create indication according to described meeting-place and create audio frequency meeting-place or video meeting-place; When the meeting-place that creates is the video meeting-place, video user equipment, the first video seat device and the second video seat device are connected with video capability with audio capability with described video meeting-place; Perhaps, when the meeting-place that creates is the audio frequency meeting-place, also carried in described ConferenceCall message and whether kept the spare capacity indication, and indicate according to the described spare capacity that whether keeps, described video user equipment, described the first video seat device and described the second video seat device are connected with audio capability with described audio frequency meeting-place respectively, and keep or remove the video capability of described video user equipment, described the first video seat device and described the second video seat device.

18. device according to claim 11 is characterized in that, described caller is video user equipment, described called be the first video seat device, described device also comprises:

The first meeting-place processing unit, be used for receiving the single step meeting SingleStepConference message that described CTI issues, described SingleStepConference message comprises that the meeting-place creates indication, and described meeting-place creates indication and comprises that the audio frequency meeting-place creates indication or the video meeting-place creates indication; Create indication according to described meeting-place and create audio frequency meeting-place or video meeting-place; When the meeting-place that creates is the audio frequency meeting-place, with audio capability outgoing call the second video seat device, described the second video seat device, described the first video seat device and described video user equipment are connected with audio capability with described audio frequency meeting-place respectively, and described the first video seat device is connected with video capability with described video user equipment; Perhaps, when the meeting-place that creates is the video meeting-place, with audio capability and described the second video seat device of video capability outgoing call, and described the second video seat device, described the first video seat device and described video user equipment are connected with video capability with audio capability with described video meeting-place respectively.

19. device according to claim 11 is characterized in that, described caller is video user equipment, described called be the first video seat device, described device also comprises:

the second meeting-place processing unit, be used for receiving the single step meeting SingleStepConference message that described CTI issues, carry the meeting-place in described SingleStepConference message and create the ability indication of indication, outgoing call the second video seat device and whether keep the spare capacity indication, create indication according to described meeting-place and create audio frequency meeting-place or video meeting-place, when the meeting-place that creates is the video meeting-place, and when the ability of described outgoing call the second video seat device is designated as with audio capability and described the second video seat device of video capability outgoing call, with audio capability and described the second video seat device of video capability outgoing call, and described the second video seat device, described the first video seat device and described video user equipment are connected with video capability with audio capability with described video meeting-place respectively, perhaps the meeting-place when establishment is the audio frequency meeting-place, and when the ability of described outgoing call the second video seat device is designated as with described the second video seat device of audio capability outgoing call, with described the second video seat device of audio capability outgoing call, and with described the second video seat device, described the first video seat device and described video user equipment are connected with audio capability with described audio frequency meeting-place respectively, and indicate according to the described spare capacity that whether keeps, keep or remove described the second video seat device, the video capability of described the first video seat device and described video user equipment.

20. device according to claim 11, it is characterized in that, described call capabilities reports the unit, also be used for receiving the outgoing call MakeCall message that described CTI issues, described MakeCall message comprises ability indication and the called ability indication of outgoing call of outgoing call caller, and the ability of described outgoing call caller is indicated and comprised with lower any: with the audio capability outgoing call, with audio capability and video capability outgoing call, with the maximum capacity outgoing call of described caller; The indication of the called ability of described outgoing call comprises with lower any: with the audio capability outgoing call, with audio capability and video capability outgoing call, with described called maximum capacity outgoing call; According to ability indication and the called ability indication of outgoing call of described outgoing call caller, the described caller of outgoing call and described called; Upgrade described caller and described called beared information SDP separately, to set up described caller and described audio frequency between called connects or audio frequency and video connect.

21. a call control system is characterized in that, described system comprises:

Call control apparatus is used for reporting the call capabilities of caller and called call capabilities to computer telecommunication integrated device CTI, and described call capabilities comprises audio capability and/or video capability; And the message that issues according to the described CTI operation indication to the call capabilities of described caller and described called call capabilities of carrying, call capabilities and the described called call capabilities of described caller operated respectively;

Computer telecommunication integrated device CTI is used for receiving call capabilities and the described called call capabilities of the described caller that described call control apparatus reports, and described call capabilities comprises audio capability and/or video capability; According to call capabilities and the described called call capabilities of described caller, the generating run indication; Issue the message of carrying described operation indication to described call control apparatus.