CN103457935A

CN103457935A - Collaborative session establishing method and application server

Info

Publication number: CN103457935A
Application number: CN2013103564872A
Authority: CN
Inventors: 金辉; 龙水平
Original assignee: Huawei Device Co Ltd
Current assignee: Huawei Device Co Ltd
Priority date: 2009-11-12
Filing date: 2009-11-12
Publication date: 2013-12-18

Abstract

The embodiment of the invention discloses a collaborative session establishing method and an application server. The application server saves a received second session response message, and controls controlled user equipment and second called user equipment to carry out media negotiation according to the saved second session response message after receiving a second off-hook message sent by the second called user equipment, and thus, the server can establish a collaborative session after negotiation is finished. Therefore, the application server can achieve media negotiation of the controlled user equipment and a plurality of pieces of called user equipment when a second session establishment request message is split to establish the collaborative session and to improve service experience of users.

Description

Set up the methods and applications server of collaborative sessions

Technical field

The present invention relates to communication technical field, be specifically related to a kind of methods and applications server of setting up collaborative sessions.

Background technology

Internet protocol multimedia subsystem (IMS, Internet protocol Multimedia Subsystem) be based on Internet protocol (IP, Internet Protocol) multimedia service communication network, can realize the core technology of the next-generation communication network that multiple network (for example mobile network and fixed network, circuit-switched network and packet switching network etc.) merges.

In this end subscriber and process that end subscriber is being conversed, this end subscriber can select different Media Streams to transmit on different subscriber equipmenies, for example audio medium stream is transmitted on landline telephone, the transmission on computers of data medium stream, but for concerning end subscriber, the situation that this end subscriber of not perception transmits different Media Streams on different equipment.In the IMS network, by service set and conversation continuity application server (SCC AS, Service Centralization Continuity Application Server), the session on different subscriber equipmenies is integrated, and end subscriber is rendered as to a session.Wherein, service set and conversation continuity application server are in the present invention referred to as application server.At each subscriber equipment of local terminal and SCC AS, a session is arranged, a plurality of sessions between a plurality of subscriber equipmenies and SCC AS are combined and are called a collaborative sessions (Collaborative Session).Subscriber equipment with combination session control right is called effector's subscriber equipment (Controller UE), does not have combination session control right, and the subscriber equipment that only has Media Stream is called controlled person's subscriber equipment (Controlee UE).

In realizing process of the present invention, the inventor studies the discovery prior art, and at least there are the following problems:

The SCC AS of effector's subscriber equipment is before the called subscriber equipment to far-end (Remote UE) sends conversation request message, the user of controlled person's subscriber equipment is in off hook state, serving session control function (S-CSCF when remote subscriber, Serving Call Session Control Function) entity is by session request message bifurcated (forking), and after sending to a plurality of called subscriber equipments with identical common identity sign, and a plurality of called subscriber equipments have been replied respectively Session Description Protocol and have been replied (SDP Answer, Session Description Protocol Answer) message, now controlled person's subscriber equipment is after receiving the SDP Answer of first called subscriber equipment, can't process the SDP Answer of other called subscriber equipment, thereby cause controlled person's subscriber equipment to carry out media negotiation with the called subscriber equipment of a plurality of far-ends.

Summary of the invention

Thereby the invention provides and a kind ofly make controlled person's subscriber equipment can carry out with the called subscriber equipment of a plurality of far-ends the methods and applications server that media negotiation is set up collaborative sessions.

The method of setting up collaborative sessions that the embodiment of the present invention provides comprises: receive the first session establishment request message that effector's subscriber equipment sends, connect according to the first session establishment request message and controlled person's subscriber equipment;

Send the second session establishment request message according to the first session establishment request message to called subscriber equipment;

Receive the first conversational response message that the first called subscriber equipment returns, according to the first conversational response message control effector subscriber equipment, controlled users equipment respectively with the first called subscriber equipment, complete media negotiation;

Receive the second conversational response message that the second called subscriber equipment returns;

When according to the first conversational response message and the second conversational response message, judging that the second session establishment request message is bifurcated, preserve the second conversational response message;

Receive the second offhook message that the second called subscriber equipment sends;

According to the second conversational response message of preserving, control controlled person's subscriber equipment and the second called subscriber equipment and carry out media negotiation;

At controlled person's subscriber equipment and the second called subscriber equipment, carry out after media negotiation completes, controlling between effector's subscriber equipment, controlled person's subscriber equipment and the second called subscriber equipment and setting up collaborative sessions.

The embodiment of the present invention also provides a kind of method of setting up collaborative sessions, and the method comprises:

Receive the first session establishment request message that effector's subscriber equipment sends;

In the situation that the second session establishment request message is bifurcated, receive the first offhook message that the first called subscriber equipment sends;

Control between effector's subscriber equipment, controlled person's subscriber equipment and the first called subscriber equipment and set up collaborative sessions according to the first offhook message;

Maintain the state that controlled person's subscriber equipment is connected with the second called subscriber equipment, to effector's subscriber equipment, send the second offhook message;

Receive the termination conversation message that effector's subscriber equipment sends;

Send refuse information according to stopping conversation message to controlled person's subscriber equipment;

Send and stop conversation message to the second called subscriber equipment.

Send the second offhook message to effector's subscriber equipment and controlled person's subscriber equipment;

Receive the termination conversation message that controlled person's subscriber equipment sends, the termination conversation message sent according to controlled person's subscriber equipment maintains the state that controlled person's subscriber equipment is connected with the second called subscriber equipment;

Send and stop conversation message to the second called subscriber equipment.

Receive the termination conversation message that effector's subscriber equipment sends, the termination conversation message sent according to effector's subscriber equipment maintains the state that controlled person's subscriber equipment is connected with the second called subscriber equipment;

Receive the termination conversation message that controlled person's subscriber equipment sends;

Send and stop conversation message to the second called subscriber equipment.

The embodiment of the present invention also provides a kind of application server, comprising:

The first receiving element, the first session establishment request message sent for receiving effector's subscriber equipment;

Connect and set up unit, for connecting according to the first session establishment request message and controlled person's subscriber equipment;

The first transmitting element, for sending the second session establishment request message according to the first session establishment request message to called subscriber equipment;

The second receiving element, the first conversational response message of returning for receiving the first called subscriber equipment;

First consults control unit, for according to the first conversational response message control effector subscriber equipment, controlled users equipment respectively with the first called subscriber equipment, completing media negotiation;

The 3rd receiving element, the second conversational response message of returning for receiving the second called subscriber equipment;

Memory cell, for when according to the first conversational response message and the second conversational response message, judging that the second session establishment request message is bifurcated, preserve the second conversational response message;

The 4th receiving element, the second offhook message sent for receiving the second called subscriber equipment;

Second consults control unit, for the second conversational response message according to preserving, controls controlled person's subscriber equipment and the second called subscriber equipment and carries out media negotiation;

The session establishment control unit,, control between effector's subscriber equipment, controlled person's subscriber equipment and the second called subscriber equipment and set up collaborative sessions after media negotiation completes for carrying out at controlled person's subscriber equipment and the second called subscriber equipment.

The embodiment of the present invention also provides a kind of application server, comprising: the first receiver module, the first session establishment request message sent for receiving effector's subscriber equipment;

The first sending module, for sending the second session establishment request message according to the first session establishment request message to called subscriber equipment;

The second receiver module, in the situation that the second session establishment request message is bifurcated, receive the first offhook message that the first called subscriber equipment sends;

Collaborative sessions is set up module, for according to the first offhook message, controlling between effector's subscriber equipment, controlled person's subscriber equipment and the first called subscriber equipment and set up collaborative sessions;

The 3rd receiver module, the second offhook message sent for receiving the second called subscriber equipment;

The second sending module, for to effector's subscriber equipment, sending the second offhook message, maintain the state that controlled person's subscriber equipment is connected with the second called subscriber equipment;

The 4th receiver module, the termination conversation message sent for receiving effector's subscriber equipment;

The 3rd sending module, for sending and stop conversation message to second callee's subscriber equipment;

The refuse information sending module, for sending refuse information according to stopping conversation message to controlled person's subscriber equipment.

The first receiver module, the first session establishment request message sent for receiving effector's subscriber equipment;

The 4th sending module, for sending the second offhook message to effector's subscriber equipment and controlled person's subscriber equipment;

The 5th receiver module, the termination conversation message sent for receiving controlled person's subscriber equipment, the termination conversation message sent according to controlled person's subscriber equipment maintains the state that controlled person's subscriber equipment is connected with the second called subscriber equipment;

The termination messages sending module, for sending and stop conversation message to the second called subscriber equipment.

The second receiver module, the second offhook message sent for receiving the second called subscriber equipment;

The 4th receiver module, the termination conversation message sent for receiving effector's subscriber equipment, the termination conversation message sent according to effector's subscriber equipment, maintain the state that controlled person's subscriber equipment is connected with the second called subscriber equipment;

The 5th receiver module, the termination conversation message sent for receiving controlled person's subscriber equipment;

In embodiments of the present invention, the second conversational response message that application server receives by preservation, after the second offhook message that receives the second called subscriber equipment transmission, according to the second conversational response message of preserving, control controlled person's subscriber equipment and the second called subscriber equipment and carry out media negotiation, thereby set up collaborative sessions after having consulted.Therefore, the embodiment of the present invention can realize that controlled person's subscriber equipment and a plurality of called subscriber equipment carry out media negotiation, thereby set up collaborative sessions when the second session establishment request message is bifurcated, and improves user's business experience.

The accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, in below describing embodiment, the accompanying drawing of required use is briefly described, 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 the method for setting up collaborative sessions the first embodiment of providing of the embodiment of the present invention;

Fig. 2 is the second conversational response message according to preservation that the embodiment of the present invention provides, and controls the method flow diagram that controlled person's subscriber equipment and the second called subscriber equipment carry out media negotiation;

Fig. 3 is the flow chart of the method for setting up collaborative sessions the second embodiment of providing of the embodiment of the present invention;

Fig. 4 is the flow chart of the method for setting up collaborative sessions the 3rd embodiment that provides of the embodiment of the present invention;

Fig. 5 is the flow chart of the method for setting up collaborative sessions the 4th embodiment that provides of the embodiment of the present invention;

Fig. 6 is the flow chart of the method for setting up collaborative sessions the 5th embodiment that provides of the embodiment of the present invention;

Fig. 7 is the flow chart of the method for setting up collaborative sessions the 6th embodiment that provides of the embodiment of the present invention;

Fig. 8 is the schematic diagram of application server the first embodiment of providing of the embodiment of the present invention;

Fig. 9 is the schematic diagram of memory cell in application server the first embodiment of providing of the embodiment of the present invention;

Figure 10 is the second schematic diagram of consulting control unit in application server the first embodiment of providing of the embodiment of the present invention;

Figure 11 is the schematic diagram of application server the second embodiment of providing of the embodiment of the present invention;

Figure 12 is the schematic diagram of application server the 3rd embodiment that provides of the embodiment of the present invention;

Figure 13 is the schematic diagram of application server the 4th embodiment that provides of the embodiment of the present invention.

Embodiment

The invention provides a kind of methods and applications server of setting up collaborative sessions.Technical scheme for a better understanding of the present invention, be described in detail embodiment provided by the invention below in conjunction with accompanying drawing.

Referring to Fig. 1, Fig. 1 is the flow chart of the method for setting up collaborative sessions the first embodiment of providing of the embodiment of the present invention.In embodiments of the present invention, application server can provide conversation continuity (SC, Session Continuity) business for effector's subscriber equipment, and media consulation method mainly comprises:

The first session establishment request message that step C1, reception effector subscriber equipment are initiated, connect according to the first session establishment request message and controlled person's subscriber equipment.

Concrete, application server can receive the first session establishment request message that effector's subscriber equipment sends, and the first session establishment request message is set up collaborative sessions for request.Application server sends the 3rd session establishment request (invite) message according to the first session establishment request message to controlled person's subscriber equipment, thereby and connects between controlled person's subscriber equipment.Wherein, do not carry Session Description Protocol request (SDP Offer in the 3rd session establishment request message, Session Description Protocol Offer) message, controlled person's subscriber equipment will return to SDP Offer message according to the 3rd session establishment request message.

Step C2, according to the first session establishment request message, to called subscriber equipment, send the second session establishment request message.

Concrete, application server can obtain according to the 3rd session establishment request message the media capability information of controlled person's subscriber equipment, then the media capability information of effector's subscriber equipment of carrying in the media capability information of controlled person's subscriber equipment and the first session establishment request message is integrated, send the second session establishment request message to called subscriber equipment, carry the media capability information of effector's subscriber equipment and controlled person's subscriber equipment in the second session establishment request message.

The S-CSCF of called subscriber equipment can be according to common identity sign (the IP Multimedia Public Identity of called subscriber equipment, IMPU) the second session establishment request message is carried out to bifurcated (forking), thereby make a plurality of called subscriber equipments with identical common identity sign all receive the second session establishment request message.

Step C3, receive the first conversational response message that the first called subscriber equipment returns, according to the first conversational response message control effector's subscriber equipment, controlled users equipment respectively the first called subscriber equipment complete media negotiation.

Concrete, application server can receive the first conversational response message that the first called subscriber equipment returns, carry the media capability information of the first called subscriber equipment in the first conversational response message, then send the media capability information of the first called subscriber equipment by message to effector's subscriber equipment and controlled person's subscriber equipment, thereby make the first called subscriber equipment complete media negotiation with effector's subscriber equipment, controlled users equipment respectively.

Wherein, the second conversational response message can be replied for Session Description Protocol (SDP answer) message, carry the media capability information of the first called subscriber equipment in the Session Description Protocol response message, the media capability information that certainly can also use other message to carry the first called subscriber equipment.

Step C4, receive the second conversational response message that the second called subscriber equipment returns.

Concrete, application server can receive the second conversational response message that the second called subscriber equipment returns, the media capability information of carrying the second called subscriber equipment in the second conversational response message.

Step C5, when according to the first conversational response message and the second conversational response message, judging that the second session establishment request message is bifurcated, preserve the second conversational response message.

Concrete, application server can judge that the second session establishment request message is bifurcated according to the first conversational response message and the second conversational response message, whether call identification (Call-ID) field that for example can judge the session identification (dialog ID) in the first conversational response message and the second conversational response message is identical with source-sign (From-tag) field, if identical, illustrate that the second session establishment request message is bifurcated, otherwise processed according to the mode of normal processing conversational response message.

Application server can be preserved all media capability information in the second conversational response message or only preserve the media capability information that need to send to controlled person's subscriber equipment, and this media capability information is carried out media negotiation for the controlled person's subscriber equipment of subsequent control and the second called subscriber equipment.

Step C6, receive the second offhook message that the second called subscriber equipment sends.

Concrete, the second called subscriber equipment off-hook, application server can receive the second offhook message that the second called subscriber equipment sends.

Step C7, according to the second conversational response message of preserving, control controlled person's subscriber equipment and the second called subscriber equipment and carry out media negotiation.

Concrete, application server can, according to the second conversational response message of preserving, be controlled controlled person's subscriber equipment and the second called subscriber equipment and carry out media negotiation.For example, send the media capability information of the second called subscriber equipment to controlled person's subscriber equipment by Re-invite message, so that controlled person's subscriber equipment and the second called subscriber equipment carry out media negotiation.

Step C8, at controlled person's subscriber equipment and the second called subscriber equipment, carry out after media negotiation completes, controlling between effector's subscriber equipment, controlled person's subscriber equipment and the second called subscriber equipment and setting up collaborative sessions.

Concrete, application server can carry out after media negotiation completes at controlled person's subscriber equipment and the second called subscriber equipment, send the second offhook message to effector's subscriber equipment, then receive the first session acknowledge message that effector's subscriber equipment returns, and send the first session acknowledge message to the second called subscriber equipment, thereby set up the collaborative sessions between effector's subscriber equipment, controlled person's subscriber equipment and the second called subscriber equipment.

It should be noted that, application server can be after receiving the first session acknowledge message that effector's subscriber equipment returns, according to the second conversational response message of preserving, control controlled person's subscriber equipment and the second called subscriber equipment and carry out media negotiation, be that application server receives the step of the first session acknowledge message that effector's subscriber equipment returns and application server according to the second conversational response message of preserving, controlling the step that controlled person's subscriber equipment and the second called subscriber equipment carry out media negotiation can be that sequential is irrelevant.

In embodiments of the present invention, because the second session establishment request message is bifurcated, application server, after the collaborative sessions of setting up between effector's subscriber equipment, controlled person's subscriber equipment and the second called subscriber equipment, can also be carried out following steps:

Step C9, receive the first offhook message that the first called subscriber equipment sends.

Step C10, to effector's subscriber equipment, send the first offhook message.

Concrete, because controlled person's subscriber equipment with the second called subscriber equipment connects, application server can not send the first offhook message to controlled person's subscriber equipment, only to effector's subscriber equipment, sends the first offhook message.

Because effector's subscriber equipment, controlled person's subscriber equipment and the second called subscriber equipment have been set up collaborative sessions, effector's subscriber equipment, after receiving the first offhook message, returns to the termination conversation message to application server.

The termination conversation message that step C11, reception effector subscriber equipment send, send and stop conversation message to the first called subscriber equipment.

Concrete, application server receives the termination conversation message that effector's subscriber equipment sends, and to controlled person's subscriber equipment, does not send and stops conversation message, and send and stop conversation message to the first called subscriber equipment.

The first called subscriber equipment is after receiving the termination conversation message, by the connection between disconnection and effector's subscriber equipment.

In the invention process, application server does not send this message to controlled person's subscriber equipment when receiving the termination conversation message, can avoid controlled person's subscriber equipment to be processed stopping conversation message, and then reduced the information interaction between controlled person's subscriber equipment and application server, accelerate processing speed, saved Internet resources.

Referring to Fig. 2, Fig. 2 is the second conversational response message according to preservation that the embodiment of the present invention provides, and controls the method flow diagram that controlled person's subscriber equipment and the second called subscriber equipment carry out media negotiation.

In embodiments of the present invention, the step that application server is preserved the second conversational response message can comprise: application server is preserved the corresponding relation of the second conversational response message, the second conversational response message and session identification, and this session identification is for identifying the session between application server and the second called subscriber equipment.

Carry session identification in the offhook message that application server receives, for identifying the session between application server and the second called subscriber equipment.Application server is according to the second conversational response message of preserving, and controlling the step that controlled person's subscriber equipment and the second called subscriber equipment carry out media negotiation can comprise:

Step D1, according to the session identification that carries in the second offhook message, obtain the second corresponding conversational response message.

Concrete, application server is inquired about the corresponding relation of the second conversational response message and session identification according to the session identification carried in the second offhook message, obtain the second conversational response message of preserving.The media capability information of wherein, in the second conversational response message, carrying the second called subscriber equipment.

Step D2, according to the second conversational response message, control controlled person's subscriber equipment and the second called subscriber equipment carries out media negotiation.

Concrete, application server, after obtaining the second conversational response message, according to the second conversational response message, is controlled controlled person's subscriber equipment and the second called subscriber equipment and is carried out media negotiation.

The embodiment of the present invention, by preserving the corresponding relation of conversational response message and session identification, can be distinguished the conversational response message that a plurality of called subscriber equipments return according to session identification, can adapt to more application scenarios.

Referring to Fig. 3, Fig. 3 is the flow chart of the method for setting up collaborative sessions the second embodiment of providing of the embodiment of the present invention.

In embodiments of the present invention, the process of setting up collaborative sessions can comprise:

The first session establishment request message that step e 1, reception effector subscriber equipment send.

Concrete, application server can receive the first session establishment request message that effector's subscriber equipment sends, and the first session establishment request message is set up collaborative sessions for request.

Step e 2, according to the first session establishment request message, to called subscriber equipment, send the second session establishment request message.

Application server can obtain according to the 3rd session establishment request message the media capability information of controlled person's subscriber equipment, then the media capability information of effector's subscriber equipment of carrying in the media capability information of controlled person's subscriber equipment and the first session establishment request message is integrated, send the second session establishment request message to called subscriber equipment, carry the media capability information of effector's subscriber equipment and controlled person's subscriber equipment in the second session establishment request message.

The S-CSCF of called subscriber equipment can carry out bifurcated (forking) by the second session establishment request message according to the common identity sign (IMPU) of called subscriber equipment, thereby makes a plurality of called subscriber equipments with identical common identity sign all receive the second session establishment request message.

In embodiments of the present invention, controlled person's subscriber equipment and effector's subscriber equipment can also carry out media negotiation with called subscriber equipment respectively.

Step e 3, in the situation that the second session establishment request message is bifurcated, receive the first offhook message that the first called subscriber equipment sends.

Concrete, application server can receive the first offhook message that the first called subscriber equipment sends in the situation that the second session establishment request message is bifurcated, and the first offhook message can be by for the S-CSCF of called subscriber equipment service, being transmitted to application server.

Step e 4, according to the first offhook message, control between effector's subscriber equipment, controlled person's subscriber equipment and the first called subscriber equipment and set up collaborative sessions.

Concrete, application server can be controlled between effector's subscriber equipment, controlled person's subscriber equipment and the first called subscriber equipment and set up collaborative sessions according to the first offhook message, for example the first media are based upon between the first called subscriber equipment and effector's subscriber equipment, the second media are based upon between the first called subscriber equipment and effector's subscriber equipment.

Step e 5, receive the second offhook message that the second called subscriber equipment sends.

Concrete, owing to there being a plurality of called subscriber equipments with identical IMPU, so application server can receive the second offhook message that the second called subscriber equipment sends, and this second called subscriber equipment and the first called subscriber equipment have identical IMPU.

Step e 6, maintain the state that controlled person's subscriber equipment is connected with the second called subscriber equipment, to effector's subscriber equipment, send the second offhook message.

Concrete, application server sends the second offhook message to effector's subscriber equipment, and maintains according to the second offhook message the state that controlled person's subscriber equipment is connected with the second called subscriber equipment.Wherein, application server can not send the second offhook message to controlled person's subscriber equipment, thereby maintain the state that controlled person's subscriber equipment is connected with the second called subscriber equipment, wherein this connection foundation when controlled person's subscriber equipment and the second called subscriber equipment carry out media negotiation.

Effector's subscriber equipment is after receiving the second offhook message, because the first called subscriber equipment has before been set up collaborative sessions respectively and between effector's subscriber equipment, controlled person's subscriber equipment, effector's subscriber equipment will return to the termination conversation message to application server.

The termination conversation message that step e 7, reception effector subscriber equipment send.

Concrete, application server receives the termination conversation message that effector's subscriber equipment sends.Application server can not send and stop conversation message to controlled person's subscriber equipment, thereby maintains the state that controlled person's subscriber equipment is connected with the second called subscriber equipment.

Step e 8, according to stopping conversation message, to controlled person's subscriber equipment, send refuse information.

Concrete, application server can send refuse information to controlled person's subscriber equipment according to stopping conversation message, and 488 or 503 refuse information for example, so that controlled person's subscriber equipment disconnects and the connection of the second called subscriber equipment.

Step e 9, to second callee's subscriber equipment, send to stop conversation message.

Concrete, application server sends and stops conversation message to the second called subscriber equipment.It is pointed out that it can be that sequential is irrelevant according to stopping the step of conversation message to controlled person's subscriber equipment transmission refuse information that application server sends to second callee's subscriber equipment the step and the application server that stop conversation message.

In embodiments of the present invention, application server is after the second offhook message that receives the second called subscriber equipment transmission, to controlled person's subscriber equipment, do not send the second offhook message, but disconnect by sending refuse information the connection that controlled person's subscriber equipment and the second called subscriber equipment are set up in media consultation process, make controlled person's subscriber equipment can not return to session termination message.Sending the second offhook message with application server in prior art to controlled person's subscriber equipment compares, the embodiment of the present invention can avoid application server to receive the session termination information that controlled person's subscriber equipment returns, thereby avoid the session termination information that controlled person's subscriber equipment is returned to be processed, reduced the information interaction between controlled person's subscriber equipment and application server, accelerate processing speed, saved Internet resources.

Referring to Fig. 4, Fig. 4 is the flow chart of the method for setting up collaborative sessions the 3rd embodiment that provides of the embodiment of the present invention.

In embodiments of the present invention, the method for setting up collaborative sessions can comprise:

The first session establishment request message that step F 1, reception effector subscriber equipment send;

Step F 2, according to the first session establishment request message, to called subscriber equipment, send the second session establishment request message;

Step F 3, in the situation that the second session establishment request message is bifurcated, receive the first offhook message that the first called subscriber equipment sends.

Step F 4, according to the first offhook message, control between effector's subscriber equipment, controlled person's subscriber equipment and the first called subscriber equipment and set up collaborative sessions.

Step F 5, receive the second offhook message that the second called subscriber equipment sends.

Wherein, above-mentioned steps F1 is to the implementation of step F 5 and to process in method first embodiment of offhook message step e 1 identical to step e 5, at this, no longer is repeated in this description.

Step F 6, to effector's subscriber equipment and controlled person's subscriber equipment, send the second offhook message.

Wherein, application server, after receiving the second offhook message, sends the second offhook message to effector's subscriber equipment and controlled person's subscriber equipment.

Effector's subscriber equipment and controlled person's subscriber equipment, after receiving the second offhook message, will return to the termination conversation message.

Step F 7, receive the termination conversation message that controlled person's subscriber equipment sends, the termination conversation message sent according to controlled person's subscriber equipment maintains the state that controlled person's subscriber equipment is connected with the second called subscriber equipment.

Concrete, application server receives the termination conversation message that controlled person's subscriber equipment sends, the termination conversation message sent according to controlled person's subscriber equipment maintains the state that controlled person's subscriber equipment is connected with the second called subscriber equipment, to effector's subscriber equipment, send not stop conversation message, wherein this connection foundation when controlled person's subscriber equipment and the second called subscriber equipment carry out media negotiation.

The termination conversation message that step F 8, reception effector subscriber equipment send.

Concrete, application server receives the termination conversation message that effector's subscriber equipment sends.

Step F 9, to the second called subscriber equipment, send to stop conversation message.

Concrete, application server is after the termination conversation message that receives the transmission of effector's subscriber equipment, to controlled person's subscriber equipment, do not send and stop conversation message, but send and stop conversation message to the second called subscriber equipment, so that the second called subscriber equipment disconnects with controlled person's subscriber equipment, effector's subscriber equipment respectively.

In embodiments of the present invention, application server is after the termination conversation message that receives controlled person's subscriber equipment transmission, maintain the state that controlled person's subscriber equipment is connected with the second called subscriber equipment, after the termination conversation message that receives the transmission of effector's subscriber equipment, send and stop conversation message to the second called subscriber equipment again, thereby make the second called subscriber equipment respectively with controlled person's subscriber equipment, effector's subscriber equipment disconnects, compared with prior art, the embodiment of the present invention can avoid effector's subscriber equipment to receive notification message, avoid user's application server to receive the exclude information that effector's subscriber equipment returns according to notification message, thereby reduced the information interaction between effector's subscriber equipment and application server, accelerated the processing speed of offhook message, Internet resources have been saved.

Referring to Fig. 5, Fig. 5 is the flow chart of method the 4th embodiment of the processing offhook message that provides of the embodiment of the present invention.

In embodiments of the present invention, the method for processing offhook message can comprise:

The first session establishment request message that step G1, reception effector subscriber equipment send;

Step G1, according to the first session establishment request message, to called subscriber equipment, send the second session establishment request message;

Step G3, in the situation that the second session establishment request message is bifurcated, receive the first offhook message that the first called subscriber equipment sends.

Step G4, according to the first offhook message, control between effector's subscriber equipment, controlled person's subscriber equipment and the first called subscriber equipment and set up collaborative sessions.

Step G5, receive the second offhook message that the second called subscriber equipment sends.

Step G6, to effector's subscriber equipment and controlled person's subscriber equipment, send the second offhook message.

Wherein, above-mentioned steps G1 is to the implementation of step G6 and to process in method first embodiment of offhook message step F 1 identical to step F 6, at this, no longer is repeated in this description.

The termination conversation message that step G7, reception effector subscriber equipment send, the termination conversation message sent according to effector's subscriber equipment maintains the state that controlled person's subscriber equipment is connected with the second called subscriber equipment.

Concrete, application server receives the second termination conversation message that effector's subscriber equipment sends, the termination conversation message sent according to effector's subscriber equipment maintains the state that controlled person's subscriber equipment is connected with the second called subscriber equipment, to controlled person's subscriber equipment and the second called subscriber equipment, do not send the termination conversation message, wherein, this connection foundation when controlled person's subscriber equipment and the second called subscriber equipment carry out media negotiation.

Step G8, receive the termination conversation message that controlled person's subscriber equipment sends.

Step G9, to the second called subscriber equipment, send to stop conversation message.

Concrete, application server is after the termination conversation message that receives controlled person's subscriber equipment transmission, to controlled person's subscriber equipment, do not send and stop conversation message, but send and stop conversation message to the second called subscriber equipment, so that the second called subscriber equipment disconnects with controlled person's subscriber equipment, effector's subscriber equipment respectively.

In embodiments of the present invention, application server is after the termination conversation message that receives the transmission of effector's subscriber equipment, maintain the state that controlled person's subscriber equipment is connected with the second called subscriber equipment, after the termination conversation message that receives controlled person's subscriber equipment transmission, send and stop conversation message to the second called subscriber equipment again, thereby make the second called subscriber equipment respectively with controlled person's subscriber equipment, effector's subscriber equipment disconnects, compared with prior art, the embodiment of the present invention can avoid controlled person's subscriber equipment to receive the second session termination message, further avoided application server to refuse the termination conversation message that controlled person's subscriber equipment returns, thereby can reduce the information interaction between controlled person's subscriber equipment and application server, accelerated the processing speed of offhook message, Internet resources have been saved.

For understanding in more detail the embodiment of the present invention, below provide the concrete application of the embodiment of the present invention in setting up the collaborative sessions process.

Referring to Fig. 6, Fig. 6 is the flow chart of the method for setting up collaborative sessions the 5th embodiment that provides of the embodiment of the present invention.

Wherein, UE-1, UE-2 can belong to identical signing or different contracted user.SCC AS-1 provides the application server of SC business for UE-1; SCC AS-2 provides the application server of SC business for UE-2, when UE-1 and UE-2 are identical contracted user, SCC AS-1 and SCC AS-2 are same SCC AS.

The process of setting up collaborative sessions can comprise the following steps:

The first session establishment request message that step H1, reception UE1 send.

In embodiments of the present invention, UE1 sends the first session establishment request (Invite) message to SCC AS1, carrying media (Media) 1 in this first session establishment request message is based upon in UE1, media 2 are based upon in UE2, the common identity sign of called subscriber equipment, and control information is retained in the indication information in UE1.Comprise SDP Offer message in the first session establishment request message, carry the media capability information of UE1 in SDP Offer message.

Step H2a, according to the first session establishment request message, to UE2, send the 3rd session establishment request message.

Wherein, do not carry SDP Offer message in the 3rd session establishment request (Invite) message.UE2 will return to the 200OK message of carrying SDP Offer message according to the 3rd session establishment request message.

The 200OK message that step H3a, reception UE2 send, the SDP Offer message comprised in this 200OK message carries the media capability information of UE2.

In embodiments of the present invention, SDP Offer message can send to application server by 200OK message.In addition, the media capability information of the above-mentioned UE1 of obtaining and UE2 can realize by step H2a and H3a, can also realize by following step H2b and H3b.

Step H2b, according to the first session establishment request message, to UE2, send the 4th session establishment request message.

Wherein, carry SDP Offer message in the 4th session establishment request message, carry the media capability information of UE1 in this SDP Offer message.

The 200OK message that step H3b, reception UE2 send, the media capability information of in the SDP Answer message comprised in this 200OK message, carrying UE2.

Wherein, SDP Answer message can send to application server by 200OK message.

Step H4, according to the media capability information of UE1 and UE2, send the second session establishment request message to called subscriber equipment.

Wherein, carry the media capability information of UE1 and UE2 and the common identity sign of called subscriber equipment in the second session establishment request message.

The S-CSCF of step H5-H6, called subscriber equipment identifies the second session establishment request message bifurcated according to the common identity of called subscriber equipment.

Concrete, the S-CSCF of called subscriber equipment sends to a plurality of called subscriber equipments corresponding to this common identity sign by the second session establishment request message, and called subscriber equipment comprises UE-A and UE-B in embodiments of the present invention.

The SDP Answer A1 message that step H7, reception UE-A send.

Wherein, SDP Answer A1 message can send to application server by 183 message, the media capability information of in SDP Answer A1 message, carrying UE-A.

In embodiments of the present invention, the first conversational response information is SDP Answer A1 message, certainly, and the message of all right other type of the first conversational response information.

Step H8, by 183 message, to UE1, send SDP Answer A2 message, the media capability information of in this SDP Answer A2 message, carrying UE-A.

Wherein, application server can be used 183 message to send SDP Answer A2 message to UE1.

Step H9a, by inviting again (Re-invite) message, to UE2, send SDP Answer A3 message, carry the media capability information of UE-A in SDP Answer A3 message.

Wherein, application server sends the media capability information of UE-A to UE2 according to the SDP Offer message in step H3a.UE2 carries out media negotiation according to this SDP Answer A3 message and UE-A, and returns to 200OK message.In addition, carry respectively different media capability information in SDP Answer A1, SDP Answer A2, SDP Answer A3.

The 200OK message that step H10a, reception UE2 return for this re-Invite message.

In embodiments of the present invention, application server can perform step H9a and realize the media negotiation of UE2 and UE-A to H10a, can also perform step H9b and realize the media negotiation of UE2 and UE-A to H10b.

Step H9b, by inviting again (Re-invite) message, to UE2, send SDP Offer message, carry the media capability information of UE-A in SDP Offer message.

Wherein, application server, according to the SDP Answer A1 message in step H2b, H3b and above-mentioned H7, sends SDP Offer message, the media capability information of in this SDP Offer message, carrying UE-A to UE2.UE2 carries out media negotiation according to this SDP Answer A1 message and UE-A, and returns to 200OK message.

The 200OK message that step H10b, reception UE2 return for this re-Invite message, comprise SDP Answer A3 message in 200OK message.

Wherein, carry SDP Answer A3 message in the 200OK message that UE2 returns, the embodiment of the present invention completes the media consultation process of UE1, UE2 and UE-A, the information such as the media coding form that when collaborative sessions is set up in acquisition respectively, both sides use, address.

The SDP Answer B1 message that step H11, reception UE-B send.

Wherein, SDP Answer B1 message can send to application server by 183 message, the media capability information of in SDP Answer B1 message, carrying UE-B.

In embodiments of the present invention, the second conversational response information is SDP Answer B1 message, certainly, and the message of all right other type of the second conversational response information.

Step H12, to UE1, send SDP Answer B2 message.

Wherein, SCC AS1, according to the content of SDP Offer in step F 1, sends SDP Answer B2 message, the ability information of in SDP Answer B2 message, carrying UE-B by 183 message to UE1.

Step H13, according to SDP Answer A1 message and SDP Answer B1 message judgement session establishment request message, be bifurcated, preserve SDP Answer B1 message.

Concrete, application server can judge that whether call identification (Call-ID) field of the session identification (dialog ID) in the first conversational response message and the second conversational response message is identical with source-sign (From-tag) field, if identical, illustrate that the second session establishment request message is bifurcated.

Wherein, SCC AS1 also preserves the corresponding relation of SDP Answer B1 and " session identification between SCC AS-1 and UE-B (dialog ID) ", for the follow-up SDP Answer B1 that searches.

The offhook message of step H14, reception UE-B.

Concrete, SCC AS1 can receive the offhook message of UE-B, and this offhook message can send by 200Ok message.

Step H15, to UE1, send offhook message.

Wherein, can send offhook message to UE1 by 200OK message, UE1 will send the first session acknowledge message to SCC AS1 according to offhook message.

(ACK, Acknowledge) message is confirmed in the first session that step H16, reception UE1 send.

Step H17, the media capability information by Re-invite message to UE2 transmission UE-B.

Wherein, SCC AS1 can search and obtain SDP Answer B1 according to the session identification between SCC AS1 and UE-B, then pass through again invitation message and send SDP Offer B3 message to UE-B, carry out media negotiation thereby make between UE2 and UE-B, and UE2, after completing media negotiation, replys SDP Answer B3 message by 200OK message.

Set up collaborative sessions between step H18, control UE-B and UE1, UE2.

After media negotiation completes, SCC AS1 controls between UE-B and UE1, UE2 and sets up collaborative sessions.

Referring to Fig. 7, Fig. 7 is the flow chart of the method for setting up collaborative sessions the 6th embodiment that provides of the embodiment of the present invention.

The first session establishment request message that step L1, reception UE1 send.

In embodiments of the present invention, UE1 sends the first session establishment request message to SCC AS1, carries media 1 in this first session establishment request message and is based upon in UE1, and media 2 are based upon in UE2, the common identity sign of called subscriber equipment, and control information is retained in the indication information in UE1.Comprise SDP Offer message in the first session establishment request message, carry the media capability information of UE1 in SDP Offer message.

Step L2, according to the first session establishment request message, to UE2, send the session query messages.

Wherein, in this session inquiry (Refer) message, do not carry SDP Offer message, carry the media capability information of UE1 in the session query messages.UE2, after receiving this session query messages, will return to the Invite message of carrying SDP Offer message.

The 5th session establishment request message that step L3, reception UE2 send.

Wherein, the 5th session establishment (Invite) request message comprises SDP Offer message, carries the media capability information of UE2 in SDP Offer message.

Step L4, according to the media capability information of UE1 and UE2, send the second session establishment request message to called subscriber equipment.

Wherein, carry the media capability information of UE1 and UE2 and the common identity sign (IMPU) of called subscriber equipment in the second session establishment request message.

The S-CSCF of step L5-L6, called subscriber equipment identifies the second session establishment request message bifurcated according to the common identity of called subscriber equipment.

Concrete, the S-CSCF of called subscriber equipment sends to a plurality of called subscriber equipments corresponding to this common identity sign by the second session establishment request message, and called subscriber equipment comprises UE-C and UE-D in embodiments of the present invention.

The SDP Answer C1 message that step L7, reception UE-C send.

Wherein, SDP Answer C1 message can send to application server by 183 message, the media capability information of in SDP Answer C1 message, carrying UE-C.

In embodiments of the present invention, the first conversational response information is SDP Answer C1 message, certainly, and the message of all right other type of the first conversational response information.

Step L8, by 183 message, to UE1, send SDP Answer C2 message, the media capability information of in this SDP Answer C2 message, carrying UE-C.

Wherein, application server can be used 183 message to send SDP Answer C2 message to UE1.UE1 completes the media negotiation with UE-C according to SDP Answer C2 message.

Step L9, by 183 message, to UE2, send SDP Answer C3 message, carry the media capability information of UE-C in SDP Answer C3 message.

Wherein, application server, according to the SDP Offer message in step L3, sends SDP Answer C3 message by 183 message to UE2.UE2 completes the media negotiation with UE-C according to SDP Answer C3 message.

In addition, carry respectively different media capability information in SDP Answer C1, SDP Answer C2, SDP Answer C3.

The SDP Answer D1 message that step L10, reception UE-D send.

Wherein, SDP Answer D1 message can send to application server by 183 message, the media capability information of in SDP Answer D1 message, carrying UE-D.

In embodiments of the present invention, the second conversational response information is SDP Answer D1 message, certainly, and the message of all right other type of the second conversational response information.

Step L11, to UE1, send SDP Answer D2 message.

Wherein, application server, according to the SDP Offer message in step L1, sends SDP Answer D2 message by 183 message to UE1.

UE1 completes the media negotiation with UE-D according to SDP Answer D2 message.

Step L12, to UE2, send SDP Answer D3 message.

Wherein, SCC AS1, according to the SDP Offer message in step L3, sends SDP Answer D3 message, the ability information of in SDP Answer D3 message, carrying UE-D by 183 message to UE2.

UE2 completes the media negotiation with UE-D according to SDP Answer D3 message.

The offhook message of step L13, reception UE-D.

Concrete, SCC AS1 can receive the offhook message of UE-D, and this offhook message can send by 200OK message.

Step L14, to UE1, send offhook message.

Wherein, can send the first offhook message to UE1 by 200OK message, UE1 will send the first session acknowledge message to SCC AS1 according to offhook message.

The first session acknowledge message that step L15, reception UE1 send.

Step L16, to UE2, send 200OK message, in this 200OK message, carry SDP AnswerD3.

Step L17, to UE-D, send the first session acknowledge message, set up collaborative sessions.

Wherein, SCC AS1 sends the first session acknowledge message to UE-D, make the first called subscriber equipment respectively and effector's subscriber equipment, controlled person's subscriber equipment between set up collaborative sessions.

The offhook message that step L18, reception UE-C send, the common identity sign of UE-C and UE-D is identical.

Wherein, SCC AS1 receives the offhook message that UE-C sends, and the common identity sign of UE-C and UE-D is identical.

Step L19, to UE1, send offhook message, the offhook message sent according to UE1 maintains the state that UE2 is connected with UE-C.

Wherein, SCC AS1 can send to UE1 by offhook message by 200OK message.SCC AS1 can be sends offhook message to UE2, thereby maintains the state that UE2 is connected with UE-C, this connection foundation when UE2 and UE-C carry out media negotiation.

UE1, after receiving offhook message, will return to the second session acknowledge message.Because UE-D has before set up collaborative sessions respectively and between UE1, UE2, UE1 will send and stop conversation message to UE-C.

The second session acknowledge message that step L20, reception UE1 return, send to UE-C by the second session acknowledge message.

The termination conversation message that step L21, reception UE1 send, the termination conversation message sent according to UE1 maintains the state that UE2 is connected with UE-C.

Wherein, SCC AS1 can not send and stop conversation message to UE2, thereby maintains the state that UE2 is connected with UE-C.

Step L22, to UE-C, send to stop conversation message.

Wherein, SCC AS1 sends and stops conversation message to UE-C, and UE-C has set up collaborative sessions, the connection of disconnection and UE1 according to this message judgement.

Step L23, to UE2, send refuse information.

Wherein, SCC AS1 can send 488 or 503 refusal (Reject) message to UE2, thereby makes the connection of UE2 disconnection and UE-C.

Compared with prior art, the method of setting up collaborative sessions that the embodiment of the present invention provides is when processing offhook message, SCC AS1 is after the offhook message that receives the UE-C transmission, to UE2, do not send offhook message, but disconnect by sending refuse information the connection that UE2 and UE-C set up in media consultation process, make UE2 can not return to session termination message.Sending offhook message with SCC AS1 in prior art to UE2 compares, the embodiment of the present invention can avoid SCC AS1 to receive the Bye message that UE2 returns, thereby avoid the Bye message that UE2 is returned to be processed, reduced the information interaction between UE2 and SCC AS1, accelerate processing speed, saved Internet resources.

The embodiment of the present invention also provides corresponding application server embodiment, and referring to Fig. 8, Fig. 8 is the schematic diagram of application server the first embodiment of providing of the embodiment of the present invention.

In embodiments of the present invention, application server the first embodiment can comprise:

The first receiving element 110, the first session establishment request message sent for receiving effector's subscriber equipment;

Connect and set up unit 120, for connecting according to the first session establishment request message and controlled person's subscriber equipment;

The first transmitting element 130, for sending the second session establishment request message according to the first session establishment request message to called subscriber equipment;

The second receiving element 140, the first conversational response message of returning for receiving the first called subscriber equipment;

First consults control unit 150, for according to the first conversational response message control effector subscriber equipment, controlled users equipment respectively with the first called subscriber equipment, completing media negotiation;

The 3rd receiving element 160, the second conversational response message of returning for receiving the second called subscriber equipment;

Memory cell 170, for when according to the first conversational response message and the second conversational response message, judging that the second session establishment request message is bifurcated, preserve the second conversational response message.

The 4th receiving element 180, the second offhook message sent for receiving the second called subscriber equipment;

Second consults control unit 190, for the second conversational response message according to preserving, controls controlled person's subscriber equipment and the second called subscriber equipment and carries out media negotiation;

Session establishment control unit 200,, control between effector's subscriber equipment, controlled person's subscriber equipment and the second called subscriber equipment and set up collaborative sessions after media negotiation completes for carrying out at controlled person's subscriber equipment and the second called subscriber equipment.

In embodiments of the present invention, application server can also comprise:

The 5th receiving element, after between session establishment control unit control effector subscriber equipment, controlled person's subscriber equipment and the second called subscriber equipment, setting up collaborative sessions, receive the first offhook message that the first called subscriber equipment sends;

The second transmitting element, for sending the first offhook message to effector's subscriber equipment;

The 6th receiving element, the termination conversation message sent for receiving effector's subscriber equipment;

The 3rd transmitting element, for sending and stop conversation message to first callee's subscriber equipment.

The application server that the embodiment of the present invention provides can be used in media consulation method first embodiment of aforementioned correspondence.

Referring to Fig. 9, Fig. 9 is the schematic diagram of memory cell 170 in application server the first embodiment of providing of the embodiment of the present invention.

In the application server provided in the embodiment of the present invention, memory cell 170 can comprise:

The first storing sub-units 171, for preserving the second conversational response message;

The second storing sub-units 172, for preserving the corresponding relation of the second conversational response message and session identification, session identification is for identifying the session of application server and the second called subscriber equipment;

Referring to Figure 10, Figure 10 is the second schematic diagram of consulting control unit 190 in application server the first embodiment of providing of the embodiment of the present invention.

Second consults control unit 190 can comprise:

Obtain subelement 191, for the session identification carried according to the second offhook message, obtain the second corresponding conversational response message;

Consult to control subelement 192, for according to the second conversational response message, control controlled person's subscriber equipment and the second called subscriber equipment and carry out media negotiation.

Referring to Figure 11, Figure 11 is the schematic diagram of application server the second embodiment of providing of the embodiment of the present invention.

A kind of application server that the embodiment of the present invention also provides, this application server the second embodiment can comprise:

The first receiver module 310, the first session establishment request message sent for receiving effector's subscriber equipment;

The first sending module 320, for sending the second session establishment request message according to the first session establishment request message to called subscriber equipment;

The second receiver module 330, in the situation that the second session establishment request message is bifurcated, receive the first offhook message that the first called subscriber equipment sends;

Collaborative sessions is set up module 340, for according to the first offhook message, controlling between effector's subscriber equipment, controlled person's subscriber equipment and the first called subscriber equipment and set up collaborative sessions;

The 3rd receiver module 350, the second offhook message sent for receiving the second called subscriber equipment;

The second sending module 360, for to effector's subscriber equipment, sending the second offhook message, maintain the state that controlled person's subscriber equipment is connected with the second called subscriber equipment;

The 4th receiver module 370, the termination conversation message sent for receiving effector's subscriber equipment;

The 3rd sending module 380, for sending and stop conversation message to second callee's subscriber equipment;

Refuse information sending module 390, for sending refuse information according to stopping conversation message to controlled person's subscriber equipment.

Application server the second embodiment that the embodiment of the present invention provides can be used in the method for setting up collaborative sessions second embodiment of aforementioned correspondence.

Referring to Figure 12, Figure 12 is the schematic diagram of application server the 3rd embodiment that provides of the embodiment of the present invention.

In embodiments of the present invention, application server comprises:

The first receiver module 410, the first session establishment request message sent for receiving effector's subscriber equipment;

The first sending module 420, for sending the second session establishment request message according to the first session establishment request message to called subscriber equipment;

The second receiver module 430, in the situation that the second session establishment request message is bifurcated, receive the first offhook message that the first called subscriber equipment sends;

Collaborative sessions is set up module 440, for according to the first offhook message, controlling between effector's subscriber equipment, controlled person's subscriber equipment and the first called subscriber equipment and set up collaborative sessions;

The 3rd receiver module 450, the second offhook message sent for receiving the second called subscriber equipment;

The 4th sending module 460, for sending the second offhook message to effector's subscriber equipment and controlled person's subscriber equipment;

The 5th receiver module 470, the termination conversation message sent for receiving controlled person's subscriber equipment, the termination conversation message sent according to controlled person's subscriber equipment maintains the state that controlled person's subscriber equipment is connected with the second called subscriber equipment;

The 4th receiver module 480, the termination conversation message sent for receiving effector's subscriber equipment;

Termination messages sending module 490, for sending and stop conversation message to the second called subscriber equipment.

The application server that the embodiment of the present invention provides the 3rd embodiment can be used in the method for setting up collaborative sessions the 3rd embodiment of aforementioned correspondence.

Referring to Figure 13, Figure 13 is the schematic diagram of application server the 4th embodiment that provides of the embodiment of the present invention.

In embodiments of the present invention, application server comprises:

The first receiver module 510, the first session establishment request message sent for receiving effector's subscriber equipment;

The first sending module 520, for sending the second session establishment request message according to the first session establishment request message to called subscriber equipment;

The second receiver module 530, in the situation that the second session establishment request message is bifurcated, receive the first offhook message that the first called subscriber equipment sends;

Collaborative sessions is set up module 540, for according to the first offhook message, controlling between effector's subscriber equipment, controlled person's subscriber equipment and the first called subscriber equipment and set up collaborative sessions;

The 3rd receiver module 550, the second offhook message sent for receiving the second called subscriber equipment;

The 4th sending module 560, for sending the second offhook message to effector's subscriber equipment and controlled person's subscriber equipment;

The 4th receiver module 570, the termination conversation message sent for receiving effector's subscriber equipment, the termination conversation message sent according to effector's subscriber equipment, maintain the state that controlled person's subscriber equipment is connected with the second called subscriber equipment;

The 5th receiver module 580, the termination conversation message sent for receiving controlled person's subscriber equipment;

Termination messages sending module 590, for sending and stop conversation message to the second called subscriber equipment.

The application server that the embodiment of the present invention provides the 4th embodiment can be used in the method for setting up collaborative sessions the 4th embodiment of aforementioned correspondence.

One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment is to come the hardware that instruction is relevant to complete by program, this program can be stored in a computer-readable recording medium, and storage medium can comprise: read-only memory, random asccess memory, disk or CD etc.

The above methods and applications server that the present invention is set up to collaborative sessions is described in detail, for one of ordinary skill in the art, thought according to the embodiment of the present invention, all will change in specific embodiments and applications, this description should not be construed as limitation of the present invention.

Claims

1. a method of setting up collaborative sessions, is characterized in that, comprising:

Receive the first session establishment request message that effector's subscriber equipment sends, connect according to described the first session establishment request message and controlled person's subscriber equipment;

Send the second session establishment request message according to described the first session establishment request message to called subscriber equipment;

Receive the first conversational response message that the first called subscriber equipment returns, according to the first conversational response message control described effector's subscriber equipment, described controlled users equipment respectively with the first called subscriber equipment completes media negotiation;

When according to described the first conversational response message and described the second conversational response message, judging that described the second session establishment request message is bifurcated, 200OK message is not received in judgement, preserves described the second conversational response message;

Receive the second offhook message that described the second called subscriber equipment sends;

According to the second conversational response message of described preservation, control described controlled person's subscriber equipment and described the second called subscriber equipment and carry out media negotiation;

At described controlled person's subscriber equipment and described the second called subscriber equipment, carry out after media negotiation completes, controlling between described effector's subscriber equipment, described controlled person's subscriber equipment and described the second called subscriber equipment and setting up collaborative sessions.

2. method according to claim 1, is characterized in that, described preservation the second conversational response message comprises:

Preserve the corresponding relation of described the second conversational response message, the second conversational response message and session identification, described session identification is for identifying the session of application server and the second called subscriber equipment;

Described the second conversational response message according to described preservation, control described controlled person's subscriber equipment and described the second called subscriber equipment and carry out media negotiation, comprising:

Obtain the second corresponding conversational response message according to the session identification carried in described the second offhook message;

Carry out media negotiation according to described the second conversational response message described controlled person's subscriber equipment of control and described the second called subscriber equipment.

3. method according to claim 1, is characterized in that, after the collaborative sessions of setting up between described effector's subscriber equipment, described controlled person's subscriber equipment and described the second called subscriber equipment, also comprises:

Receive the first offhook message that described the first called subscriber equipment sends;

Send described the first offhook message to described effector's subscriber equipment;

Receive the termination conversation message that described effector's subscriber equipment sends, to described first callee's subscriber equipment, send described termination conversation message.

4. an application server, is characterized in that, comprising:

Connect and set up unit, for connecting according to described the first session establishment request message and controlled person's subscriber equipment;

The first transmitting element, for sending the second session establishment request message according to described the first session establishment request message to called subscriber equipment;

First consults control unit, for according to described the first conversational response message, controlling described effector's subscriber equipment, described controlled users equipment respectively with the first called subscriber equipment completes media negotiation;

Memory cell, for when according to described the first conversational response message and described the second conversational response message, judging that described the second session establishment request message is bifurcated, 200OK message is not received in judgement, preserves described the second conversational response message;

The 4th receiving element, the second offhook message sent for receiving described the second called subscriber equipment;

Second consults control unit, for the second conversational response message according to described preservation, controls described controlled person's subscriber equipment and described the second called subscriber equipment and carries out media negotiation;

The session establishment control unit,, control between described effector's subscriber equipment, described controlled person's subscriber equipment and described the second called subscriber equipment and set up collaborative sessions after media negotiation completes for carrying out at described controlled person's subscriber equipment and described the second called subscriber equipment.

5. application server according to claim 4, is characterized in that, described memory cell comprises:

The first storing sub-units, for preserving described the second conversational response message;

The second storing sub-units, for preserving the corresponding relation of the second conversational response message and session identification, described session identification is for identifying the session of application server and the second called subscriber equipment;

Described second consults control unit, comprising:

Obtain subelement, for the session identification carried according to described the second offhook message, obtain the second corresponding conversational response message;

Consult to control subelement, for according to described the second conversational response message described controlled person's subscriber equipment of control and described the second called subscriber equipment, carrying out media negotiation.

6. application server according to claim 4, is characterized in that, also comprises:

The 5th receiving element, for after described session establishment control unit is controlled between described effector's subscriber equipment, described controlled person's subscriber equipment and described the second called subscriber equipment and set up collaborative sessions, receive the first offhook message that described the first called subscriber equipment sends;

The second transmitting element, for sending described the first offhook message to described effector's subscriber equipment;

The 3rd transmitting element, for sending described termination conversation message to described first callee's subscriber equipment.