CN101635819B

CN101635819B - Video telephone calling method and video telephone calling system

Info

Publication number: CN101635819B
Application number: CN2009101609957A
Authority: CN
Inventors: 陈国乔; 杨健; 王雷
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-09-04
Filing date: 2007-09-04
Publication date: 2012-01-11
Anticipated expiration: 2027-09-04
Also published as: CN101635819A

Abstract

The invention relates to the communication field and discloses a video telephone calling method and a video telephone calling system, ensuring that the multimedia color ring service of a video telephone can be realized by less cost. In the invention, a multimedia ring back tone server plays multimedia ring back tone to a calling terminal through establishing a first load of the video telephone between the multimedia ring back tone server and the calling terminal; when a called terminal is detected to be off-hook, a second load of the video telephone is established between the called terminal and the multimedia ring back tone server; and video telephone communication can be carried out between the calling terminal and the called terminal through the established first load and second load. Or the multimedia ring back tone server plays multimedia ring back tone to the calling terminal through establishing a third load of the video telephone between the multimedia ring back tone server and the calling terminal; a fourth load of the video telephone is established between the calling terminal and the called terminal, and the video telephone communication can be carried out between the calling terminal and the called terminal through the fourth load.

Description

The video phone call method and system

Technical field

The present invention relates to the communications field, particularly video phone call technology.

Background technology

CRBT is also referred to as personalized ring back tone service, be one by called subscriber customization, record to substitute the business of common ring-back tone for the calling subscriber provides one section music song or other.Client application is opened after the Ring Back Tone service, can set up Customized Ring Back Tone on their own, does when called at it, and music song or other recording for the calling subscriber plays personalized customization replace common ring-back tone.Specifically, Customized Ring Back Tone can be any one section music, song, recording, video etc.; If video, then needing call subscriber terminal to have corresponding video media ability to play could correctly experience, and this moment is called multimedia color ring back tone again or coloured silk is looked business.

The Multimedia Ring Back Tone service of video telephone be one in visual telephone service; Customize by the called subscriber; Dial when called with the video telephone mode when caller, system substitutes the business of common ring-back tone for the calling subscriber provides one section gorgeous, melodious multimedia video in called terminal ringing.

Visual telephone service is at UMTS (Universal mobiletelecommunication system; Be called for short " UMTS ") the middle a kind of point-to-point service that can utilize Voice & Video simultaneously that defines; Can be between two visible mobile terminals, realize two-way real-time interchange of Voice & Video between visible mobile terminal and the visual fixed terminal or between visible mobile terminal and the PC.H.245 introduce in the face of the multimedia communication control signaling protocol that relates in the visual telephone service down.

H.245 be H.323 to be used for the agreement that media channel is controlled in the protocol suite, mainly accomplish foundation, maintenance and the release of each logical channel in the multimedia communication.Specifically comprise the opening and closing of logical channel, the controlled function such as capability negotiation of parameter setting, receiving-transmitting sides.It also will accomplish the cooperation controlled function of logic channel in the multipoint conference calling simultaneously.H.245 control signal transmits on a control channel that connects based on transmission control protocol (Transfer Control Protocol is called for short " TCP "), and control channel must be set up before any logic channel in advance, and behind sign off, discharged.

Two types of channels in H.245, have been defined: control channel and communication channel.Control channel is also referred to as H.245 channel, and two H.245 reciprocity signaling entities that are positioned on the different H.323 entities transmit H.245 message through this channel, with the foundation and the release of control media channel.Communication channel, just media channel is called logic channel in H.245, transmits telex network information above that.In general, two inter-entity can have many logic channels, in calling, can set up at any time as required and discharge, and H.245 are being called opening and closing in the agreement.Comprise in the major control process of agreement H.245 that capabilities exchange, logic channel signaling procedure, principal and subordinate's deterministic process, round-trip delay are confirmed, loop maintenance etc.In addition, H.245 agreement has also defined many simple orders and Indication message, can be used for various uses, and they do not relate to common protocol procedures.Relatively more commonly used has: flow control order, multipoint system order, communication mode order, user import indication etc.

H.245 message can be divided into 4 types: request, response, order, indication.Specifically, request message requires the recipient to carry out desired action, and returns response immediately.Response message is the answer to request message.Command messages requires the recipient to carry out the action of appointment, but does not require back response message.Indication message is a transmission information, does not require recipient's executable operations, does not also require it and replys response message, normally indicates the state information at terminal.

At present; Functional module through built-in realization multimedia color ring back tone on the terminal; Realize the Multimedia Ring Back Tone service of video telephone; Be the user's download multimedia color ring back tone and be provided with after, when other people dialed video telephone for this user's terminal, this user's terminal was to the calling terminal play multimedia ring back tones.Operator realizes profit through the information charge of collecting the user's download multimedia color ring back tone, need not the network side of operator is transformed.Specifically, user's terminal is through the radio phone terminal of transforming, the functional module of the multimedia color ring back tone that on the basis of radio phone terminal, superposeed.After the call request that receives other terminal, terminal called sends Alerting (signalling) message and gives the calling party, and sends the message initiated carrying of Connecting (connection) subsequently and set up flow process.And start the multimedia color ring back tone application program at terminal simultaneously, prepare beginning coloring ring back tone playing content; Meanwhile, terminal called is set up the carrying of multimedia color ring back tone with passing through H.245 between the calling terminal.After accomplishing the process of setting up of carrying, the carrying play multimedia ring-back tone of the multimedia color ring back tone module of terminal called through building up, calling terminal listens to, watches the content of multimedia color ring back tone through the carrying of visual power supply.Behind called subscriber's off-hook, the CRBT module of terminal called stops play content, and control is transferred in terminal use's hand, and so far, the process of whole multimedia Ring Back Tone service is accomplished.

Yet inventor of the present invention finds, because the scheme of prior art need be transformed the terminal, increases the functional module that realizes multimedia color ring back tone, so as in calling procedure the content of play multimedia ring back tones.And the functional module that also needs to realize multimedia color ring back tone is integrated with the functional module that is used for video phone call, cooperating, therefore, to having relatively high expectations of terminal.If a large amount of multimedia color ring back tone contents need be selected in the terminal, also need accomplish the memory function of content in this locality.And, as far as operator, only can realize profit through the information charge of collecting the user's download multimedia color ring back tone, this has fundamentally changed the revenue model of existing operator, runs in the opposite direction with the demand of operator.

On the other hand, because the pattern problem of signaling, in the play multimedia ring back tones stage; The terminal will think by error that the communication process of video telephone begins; Therefore as far as the terminal, can't realize accurate charging, thereby cause user's complaint easily the duration of call.

Summary of the invention

The technical problem underlying that embodiment of the present invention will solve provides a kind of video phone call method and system, makes the Multimedia Ring Back Tone service of video telephone to be achieved through less cost.

For solving the problems of the technologies described above, execution mode of the present invention provides a kind of video phone call method, may further comprise the steps:

Between calling terminal and Multimedia Ringback Tone Server, setting up first of video telephone carries;

Multimedia Ringback Tone Server carries to calling terminal play multimedia ring-back tone through first;

After detecting the terminal called off-hook, between this terminal called and Multimedia Ringback Tone Server, set up second of video telephone and carry;

Carry through first carrying and second, between calling terminal and terminal called, carry out video telephone communication.

Execution mode of the present invention also provides a kind of video phone call method, may further comprise the steps:

Between calling terminal and Multimedia Ringback Tone Server, set up the 3rd carrying of video telephone;

Multimedia Ringback Tone Server carries to calling terminal play multimedia ring-back tone through the 3rd;

Between calling terminal and terminal called, set up the 4th carrying of video telephone, be carried on through the 4th and carry out video telephone communication between calling terminal and the terminal called.

Execution mode of the present invention also provides a kind of video phone call system, comprising:

The unit is set up in carrying, is used between calling terminal and Multimedia Ringback Tone Server, setting up first of video telephone and carries;

The multimedia audible ringing tone broadcast unit is used for setting up first of unit foundation through carrying and carries to calling terminal play multimedia ring-back tone;

Detecting unit is used to detect whether off-hook of terminal called, and after detecting this terminal called off-hook, sets up this terminal called of unit indication off-hook to carrying; Carrying is set up the unit and also is used for after the indication of receiving detecting unit, between terminal called and Multimedia Ringback Tone Server, sets up second of video telephone and carries;

Communication unit is used for setting up first carrying and second of setting up the unit through carrying and carries, and between calling terminal and terminal called, carries out video telephone communication.

The unit is set up in carrying, is used between calling terminal and Multimedia Ringback Tone Server, setting up the 3rd carrying of video telephone, between this calling terminal and terminal called, sets up the 4th carrying of video telephone;

The multimedia audible ringing tone broadcast unit is used for setting up the 3rd of unit foundation through carrying and carries to calling terminal play multimedia ring-back tone;

Communication unit is used for setting up the 3rd carrying and the 4th carrying that the unit is set up through carrying, between calling terminal and terminal called, carries out video telephone communication.

Embodiment of the present invention compared with prior art, main effect is: Multimedia Ring Back Tone service can be achieved on the network frame based on the existing visual phone.And, to this calling terminal play multimedia ring-back tone, avoided the terminal is carried out the transformation of protocol level by Multimedia Ringback Tone Server, make the realization of Multimedia Ring Back Tone service of video telephone, can be reduced to minimum degree to the influence at terminal.

Description of drawings

Fig. 1 is the schematic network structure according to the video phone call method of first embodiment of the invention;

Fig. 2 is the video phone call method flow diagram according to first embodiment of the invention;

Fig. 3 is the video phone call method flow diagram according to second embodiment of the invention;

Fig. 4 is the video phone call method flow diagram according to third embodiment of the invention;

Fig. 5 is the video phone call method flow diagram according to four embodiment of the invention;

Fig. 6 is the video phone call method flow diagram according to fifth embodiment of the invention;

Fig. 7 is the video phone call method flow diagram according to sixth embodiment of the invention;

Fig. 8 is the schematic network structure according to the video phone call method of seventh embodiment of the invention;

Fig. 9 is the video phone call method flow diagram according to seventh embodiment of the invention;

Figure 10 is the video phone call method flow diagram according to eighth embodiment of the invention;

Figure 11 is the video phone call method flow diagram according to nineth embodiment of the invention;

Figure 12 is the video phone call system configuration sketch map according to eleventh embodiment of the invention;

Figure 13 is the video phone call system configuration sketch map according to twelveth embodiment of the invention.

Embodiment

For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that execution mode of the present invention is done to describe in detail further below.

First execution mode of the present invention relates to a kind of video phone call method; In this execution mode; Multimedia Ringback Tone Server carries through first of the video telephone between calling terminal and Multimedia Ringback Tone Server, set up, to this calling terminal play multimedia ring-back tone.After detecting the terminal called off-hook; Between this terminal called and this Multimedia Ringback Tone Server, setting up second of video telephone carries; First carrying of passing through to be set up and second is carried, and between this calling terminal and this terminal called, carries out video telephone communication.The network configuration of this execution mode is as shown in Figure 1; Comprise (the Mobile Switching Center of mobile switching centre; Abbreviation " MSC ") server, WMG (Media Gateway; Abbreviation " MGW "), VLR Visitor Location Register (Visitor Location Register is called for short " VLR "), radio network controller (Radio NetworkController is called for short " RNC "), base-station node (Node Base Station; Abbreviation " Node B "), attaching position register (Home Location Register; Be called for short " HLR "), AUC's (AuthenticationCenter is called for short " AuC "), the network elements such as Multimedia Ringback Tone Server of multimedia audible ringing tone and calling and called terminal are provided.Wherein, the MSC server can integrate with VLR, is the unification network element, connects through process H.248 between MSC server and the MGW, and HLR can integrate with AuC, is the unification network element.(AuC possibly not exist under the situation of arranging net of reality).Idiographic flow is as shown in Figure 2.

In step 201, calling terminal is that subscriber equipment (User Equipment, be called for short " UE ") A sends out SETUP (foundations) message to the MSC server A of adhering to, and ITC is in the BC_IE cell that carries in the message ' UDI ', ORA is ' H.223&H.245 '.

Then, in step 202, the MSC server A is HLR B initiation transmission routing iinformation (Send Routing Info is called for short " the SRI ") request of UE B to terminal called, the inquiry routing iinformation.

Then; In step 203, the Provide Roaming Number message of (Provide Roaming Number is called for short " PRN ") of the MSC server B that HLR B adheres to the UE B request of sending; Ask the mobile station roaming number (Mobile Station Roaming Number is called for short " MSRN ") of this UE B.

Then, in step 204, the MSC server B is returned the MSRN of this UE B to HLR B, if the MSC server B is supported pre-paging, at this moment can initiate to return after the pre-paging process MSRN of this UE B earlier again.

Then, in step 205, HLR B returns the routing iinformation (i.e. the MSRN of this UE B) of UE B to the MSC server A, and carries the whether information of customizing multimedia Ring Back Tone service of called subscriber's (promptly using the user of UE B).

Then, in step 206, after the MSC server A obtains the MSRN of UE B, initiate Call_Proceeding (calling procedure) to UE A.

Then, in step 207, the MSC server A is initiated ISUP IAM message (ISUP initial address message) to Multimedia Ringback Tone Server.The CLIP service if the called subscriber has contracted then need carry calling number and professional prefix information in this ISUP IAM message.Wherein, Multimedia Ringback Tone Server is the system that multimedia color ring back tone is provided for the video telephone user; Possess multimedia color ring back tone storage, broadcast and managerial ability; And support bearer independent call control (Bearer Independent CallControl is called for short " BICC ")/ISUP (ISDN User Part is called for short " ISUP ") agreement.After the called subscriber applied for Multimedia Ring Back Tone service, this server should provide the broadcast of multimedia color ring back tone for calling terminal, and when the called subscriber answers, can interrupt the broadcast of this multimedia color ring back tone automatically.

Then, in step 208, Multimedia Ringback Tone Server is initiated ISUP IAM message to the MSC server B.The CLIP service if the called subscriber has contracted then need carry calling number in this ISUP IAM message.

Then, in step 209, if the MSC server B is not being initiated the pre-paging process before HLR B returns the MSRN of UE B, then in this step, this MSC server B is initiated paging request message to UE B.

Then, in step 210, UE B returns page-response message to this MSC server B.

Then, in step 211, the MSC server B is sent SETUP message to UE B, and ITC is ' UDI ', ORA is ' H.223&H.245 ' in the BC_IE cell that carries in the message.

Then, in step 212, UE B returns CALL CONFIRMED (call out and confirm) message to this MSC server B, does not carry new BC_IE, and expression can be supported the called of video telephone.At this moment, this UE B begins ring.

Then, in step 213, after the UE B ring, UE B returns Alerting message to the MSC server B.

Then, in step 214, the MSC server B is sent the address to Multimedia Ringback Tone Server and is accomplished message (Address Complete Message is called for short " ACM ").

Then, in step 215, Multimedia Ringback Tone Server sends the ACM that carries multimedia bell information to the MSC server A after receiving the ACM that the MSC server B sends.

Then, in step 216, this multimedia bell information of MSC server A identification sends Alerting and gives UEA.

Then, in step 217, Multimedia Ringback Tone Server sends response message (Answer Message is called for short " ANM ") message to the MSC server A, triggers the MSC server A and sends Connect message to UE A.This ANM is the ANM signal that sends to the MSC server A from Multimedia Ringback Tone Server, and expression can be set up the conversation between Multimedia Ringback Tone Server and the UE A, and is used for triggering Connect message.This step is an optional step in the middle of this execution mode, and actual needs are depended in concrete selection.Need to prove that the MSC server A also can be sent Connect message to UE A behind the ACM that carries multimedia bell information that receives from Multimedia Ringback Tone Server.That is to say that the transmission of Connect message can not trigger through ANM yet.

Then, in step 218, UE A sends ConnectACK (connection response) message to the MSC server A after receiving Connect message.

Then, in step 219, through video telephone signaling protocol process, set up first of video telephone and carry between UE A and the Multimedia Ringback Tone Server.H.324, H.323 or the video telephone signaling protocol of Session initiation Protocol (Session Initation Protocol, be called for short " SIP ") this video telephone signaling protocol can be.This execution mode is set up first of video telephone with the H.245 process H.323 and is carried as example and describes.

Then, in step 220, UE A watches video frequency color ring through Multimedia Ringback Tone Server.

Then, in step 221, UE B accomplishes after the off-hook action, sends Connect message to the MSC server B.The called party answer process begins.

Then, in step 222, the MSC server B is sent ANM to Multimedia Ringback Tone Server.

Then, in step 223, the MSC server B is sent Connect_ACK (connection response) message to UE B.

Then, in step 224, Multimedia Ringback Tone Server sends ANM to the MSC server A, and the MSC server A that this moment, UE A adhered to begins to charge to video telephone communication.Owing to after detecting UE B off-hook, again video telephone communication is chargeed, therefore can make in the implementation procedure of Multimedia Ring Back Tone service, can carry out accurate Calculation and control to the duration of call.At this moment, the MSC server A can be sent the Connect signaling to UE A.Need to prove that in practical application, even the MSC server A yet can not sent the Connect signaling or sent Connect message to UE A, UE A does not handle Connect message yet, that is to say, this moment, whether the transmission of Connect message was optional step.If UE A has received this Connect message and has selected to handle this Connect message that then this UE A can reply a Connect_ACK response message to the MSC server A, can certainly not reply any message.

Then, in step 225, control H.245 process of signaling protocol through multimedia communication between Multimedia Ringback Tone Server and the UE B, set up second of video telephone and carry.

Then; In step 226; Carry through first of the video telephone set up between UEA and the Multimedia Ringback Tone Server; And second of the video telephone of setting up between UE B and the Multimedia Ringback Tone Server carries, and between this UE A and UE B, carries out the video telephone communication of 3G (Third Generation) Moblie (The Third Generation is called for short " 3G ") circuit domain.

Be not difficult to find that in this execution mode, Multimedia Ring Back Tone service can be achieved on the network frame based on the existing visual phone.And, to this calling terminal play multimedia ring-back tone, avoided the terminal is carried out the transformation of protocol level by Multimedia Ringback Tone Server, make the realization of Multimedia Ring Back Tone service of video telephone, can be reduced to minimum degree to the influence at terminal.In addition, UE A and UE B only need to set up a video telephone with Multimedia Ringback Tone Server respectively and carry, and behind the call through, UE A and UE B accomplish video telephone through Multimedia Ringback Tone Server.And this execution mode is all less to the transformation at MSC server and terminal, is easy to realize.

Need to prove that the Connect ACK message in this execution mode in step 218 and the step 223 is used for Connect message is confirmed, can exist, also can not exist that actual needs are depended in concrete selection.

Second execution mode of the present invention relates to a kind of video phone call method; This execution mode is roughly the same with first execution mode; Its difference is; In the first embodiment, the MSC server A is through sending Connect message (like step 217) to UE A, and notice UEA sets up first of video telephone and carries.And in this execution mode, the MSC server A is not sent the Connect message (as shown in Figure 3) shown in step 217 to UE A after sending Alerting message to UE A, but in sending to the Alerting message of UE A, carries service identification.Such as; Carry the special text of identification of multimedia Ring Back Tone service through the information element in the Alerting message " User-User "; So that can discerning, UE A whether will begin to receive multimedia color ring back tone; If do not carry this service identification in the Alerting message, then begin the communication of video telephone by normal flow; If carry this service identification in the Alerting message, then set up first of video telephone and carry.

In addition, the MSC server A is behind terminal called UE B off-hook, and when having received the ANM (i.e. step 224 in first execution mode) from Multimedia Ringback Tone Server, this MSC server A is sent Connect message to UE A, and is as shown in Figure 3.

Through in Alerting message, carrying service identification, can make that this Alerting message is received at the terminal of not supporting Multimedia Ring Back Tone service after, can not impact the compatible neatly terminal of not supporting Multimedia Ring Back Tone service to normally continuing yet.In addition; UE A also need start the 3G-324M protocol interaction after receiving Alerting message; Require network can set up circuit switched data (Circuit Switch Data, be called for short " CSD ") 64 hardwired link at this moment simultaneously, so that the carrying out rapidly of flow.

The 3rd execution mode of the present invention relates to a kind of video phone call method; This execution mode is roughly the same with first execution mode; Its difference is that in the first embodiment, network side need not to notify the charge information of the relevant conversation on video telephone duration of calling terminal (being UEA); And in this execution mode; Network side through send " Facility " message that the expression network side does not begin to charge as yet to this terminal called, was notified this calling terminal to ignore and is chargeed or timing before detecting terminal called (being UE B) off-hook; After detecting this terminal called off-hook,, notify this calling terminal to begin to charge or timing through send " Facility " message that the expression network side begins to charge to this terminal called.For describing conveniently, hereinafter article one " Facility " message is called " Facility " message A, second " Facility " message is called " Facility " message B.

Idiographic flow is as shown in Figure 4, and step 401 to step 420 is identical with step 201 to step 220 respectively, repeats no more at this.

In step 421, MSC server A or Multimedia Ringback Tone Server send " Facility " message A to UE A, and this is not a normal talking for notice UEA, and network side does not begin to charge as yet.

Step 422 to step 425 is identical with step 221 to step 224 respectively, repeats no more at this.

In step 426, MSC server A or Multimedia Ringback Tone Server send " Facility " message B to UE A, and notice UE A normal talking begins, and network side begins to charge.

Because in the middle of the process of normal video telephone; After the Connect message of UE A in receiving step 417, the carrying that will set up video telephone, this time; UE A can show to the user: " in the conversation on video telephone "; Generally speaking, also can add the air time of video telephone, like " 00:19 " etc.And the stack that Multimedia Ring Back Tone service belongs on the video telephone technical foundation is professional; Therefore; If UE is not carried out any transformation; Video telephony applications can think that the process of Multimedia Ring Back Tone service also is the process of conversation on video telephone, therefore, can in the middle of the process of play multimedia ring-back tone, show " in the conversation on video telephone " and relevant clocking information.

For fear of the user charge information is misunderstood; Reduce simultaneously professional modification as much as possible, make normal video telephone communication unaffected video telephony applications, UE can the Connect message in receiving step 417 after; Still carry out timing according to normal situation; But receiving that the expression network side does not begin charging information as yet, promptly behind " Facility " message A, can not begin the information of chargeing as yet to user's data representing network side.Such as, with the clocking information that shows processings of making zero, and on screen, showing information such as ", not beginning as yet to charge " just at playing RBT, notice user network side does not begin charging as yet.Receive that at UE the expression network side begins charging information, promptly after " Facility " message B, let video telephony applications begin video telephone is carried out timing/charging, and the display of visually phone carries out medium similar printed words.

Because the Connect message in the step 417 is optional; Therefore do not receive the Connect message that system side issues at UE, when the function of this Connect message was substituted by other signaling message, this UE was when receiving the signaling that substitutes the Connect message function; Will show according to the mode of multimedia color ring back tone; Just at similar printed words such as playing RBT, clocking information does not show, perhaps is shown as " 00:00 " in i.e. demonstration.After receiving Connect message, show all the elements according to normal video telephone procedure for displaying.

Step 427 and step 428 are identical with step 225 and step 226 respectively, repeat no more at this.

Need to prove that the Connect ACK message in this execution mode in step 418 and the step 424 can exist, also can not exist that actual needs are depended in concrete selection.In addition, " Facility " the message A in the step 421 is except can also being positioned at step 416 step 425 afterwards any position before position as shown in Figure 4.

In the step 425 of this execution mode; The MSC server A can be sent Connect message to UE A, also can not send this message, if the MSC server A is sent this Connect message; Then will be after receiving the ANM that sends from Multimedia Ringback Tone Server; Send this Connect message to UE A again, UE A can handle this message, also can this message not carried out any processing.

Be not difficult to find that the main effect of step 421 and step 426 is in this execution mode whether real video telephone begins the prompting calling terminal.Make this calling terminal can know the duration of call that network side calculates exactly,, solve the problem that the terminal picks up counting in the play multimedia ring back tones process in order to avoid the user of this calling terminal misunderstands to charge information.

What deserves to be mentioned is; In this execution mode; The MSC server A can also be in step 416 or step 417; Through the Alerting message or the Connect message that are handed down to UE A, the information that whether this ring can be triggered the broadcast of multimedia color ring back tone sends to UE A, so that UE A accurately timing in view of the above.Such as if there is not this information in the message, then UE A starts timing according to original normal mode.If this information is arranged in the message, then UEA will can not start timing when receiving first Connect message, but wait for that subsequent network transmission indication starts the message of timing, after receiving that indication starts the message of timing, restarts timing.

Whether this ring can trigger the information of the broadcast of multimedia color ring back tone can be come extension realization through the facility field in the message, also can realize through the expansion of the User-User field in the middle of the Connect message.Such as, if the value of User-User field is 1 in Connect message, then indicate UE A not-time when receiving first Connect message; The value of User-User field is 0 in Connect message, then indicates UE A to start timing according to original normal mode.

Be not difficult to find; If be handed down in the Alerting message or Connect message of UE A; Carry this ring and whether can trigger the information of the broadcast of multimedia color ring back tone, then be equal to and carried out step 421, therefore the transmission of " Facility " message A just can be omitted; But still need send " Facility " message B, be somebody's turn to do " Facility " message B promptly starts timing as above-mentioned indication message.

The 4th execution mode of the present invention relates to a kind of video phone call method; This execution mode and first execution mode are roughly the same, and its difference is, in the first embodiment; Network side need not to notify the charge information of the relevant conversation on video telephone duration of calling terminal (being UEA); And in this execution mode, network side represented through sending to this terminal called that network side did not begin short message service (the Short Message Service that charges as yet before detecting terminal called (being UE B) off-hook; Be called for short " SMS ") message, notify this calling terminal to ignore and charge or timing; After detecting this terminal called off-hook,, notify this calling terminal to begin to charge or timing through send the SMS message that the expression network side begins to charge to this terminal called.For describing conveniently, hereinafter article one SMS message is called SMS message A, second SMS message is called SMS message B.

Idiographic flow is as shown in Figure 5, and step 501 to step 520 is identical with step 201 to step 220 respectively, repeats no more at this.

In step 521, the MSC server A is sent SMS message A to UE A, and this is not a normal talking for notice UE A, and network side does not begin to charge as yet.UE A can not begin the information of chargeing to user's data representing network side as yet after receiving this SMS message A.Such as, on screen, showing information such as ", not beginning as yet to charge " just at playing RBT, notice user network side does not begin to charge as yet.

Step 522 to step 525 is identical with step 221 to step 224 respectively, repeats no more at this.

In step 526, the MSC server A is sent SMS message B to UE A, and notice UE A normal talking begins, and network side begins to charge.

The transmission of SMS message is actually the process of a logic in step 521 and the step 526, can be MSC server A transmission SMS in the middle of reality realizes, also can be the transmission that matches of auxiliary equipment with Short Message Service Gateway and so on.In this execution mode, the implication that the MSC server A is sent SMS is that SMS message is sent via the MSC server A through certain device fires then.

Step 527 and step 528 are identical with step 225 and step 226 respectively, repeat no more at this.

Need to prove that the Connect ACK message in this execution mode in step 518 and the step 524 can exist, also can not exist that actual needs are depended in concrete selection.In addition, the SMS message A in the step 521 is except can also being positioned at step 516 step 525 afterwards any position before position as shown in Figure 5.

In the step 525 of this execution mode; The MSC server A can be sent Connect message to UE A, also can not send this message, if the MSC server A is sent this Connect message; Then will be after receiving the ANM that sends from Multimedia Ringback Tone Server; Send this Connect message to UE A again, UE A can handle this message, also can this message not carried out any processing.

Be not difficult to find that the main effect of step 521 and step 526 is in this execution mode whether real video telephone begins the prompting calling terminal.Make this calling terminal can know the duration of call that network side calculates exactly,, solve the problem that the terminal picks up counting in the play multimedia ring back tones process in order to avoid the user of this calling terminal misunderstands to charge information.Because SMS is the common communication mode in a kind of terminal, therefore can not begin the information of chargeing or beginning to charge as yet through the content representation network side that SMS carries.In SMS, carry which kind of content and represent that corresponding information can be according to prior agreement; Such as; " MRBT Begin " expression video telephone that can utilize SMS message to carry does not begin as yet, is Multimedia Ring Back Tone service at present, and calling terminal receives after this SMS message; Can think that present session is the multimedia color ring back tone session, does not handle current sessions as the conversation of video telephone; The sign that " VPBegin " that can utilize SMS message to carry begins as video telephone, calling terminal receive after this SMS message, can think that present session is the conversation of video telephone, and current sessions will be handled as the conversation of normal visible phone.SMS message can be carried different contents and information, so the represented information of SMS message may be different, and this depends on prior agreement.

In addition, what deserves to be mentioned is, in this execution mode; Whether to have begun to charge through SMS message informing calling terminal network side is that example describes, and in practical application, also can notify this calling terminal through other mode; Like multimedia messaging service, MMS (Multimedia Message Services; Abbreviation " MMS "), E-mail (Electronic mail is called for short " E-mail "), IM (InstantMessenger is called for short " IM "), pushing news (Push Message) etc.; Concrete implementation and this execution mode are similar, repeat no more at this.

Need to prove; In this execution mode; The MSC server A can also be in step 516 or step 517; Through the Alerting message or the Connect message that are handed down to UE A, the information that whether this ring can be triggered the broadcast of multimedia color ring back tone sends to UE A, so that UE A accurately timing in view of the above.Such as if there is not this information in the message, then UE A starts timing according to original normal mode.If this information is arranged in the message, then UE A will can not start timing when receiving first Connect message, but wait for that subsequent network transmission indication starts the message of timing, after receiving that indication starts the message of timing, restarts timing.

Whether this ring can trigger the information of the broadcast of multimedia color ring back tone can be come extension realization through the facility field in the message, also can realize through the expansion of the User-User field in the middle of the Connect message.Such as, if the value of User-User field is 1 in Connect message, then indicate UE A not-time when receiving first Connect message; The value of User-User field is 0 in Connect message, then indicates UEA to start timing according to original normal mode.

Be not difficult to find; If be handed down in the Alerting message or Connect message of UE A; Carry this ring and whether can trigger the information of the broadcast of multimedia color ring back tone, then be equal to and carried out step 521, so the transmission of SMS message A just can be omitted; But still need send SMS message B, this SMS message B promptly starts the message of timing as above-mentioned indication.

The 5th execution mode of the present invention relates to a kind of video phone call method; This execution mode is roughly the same with first execution mode; Its difference is that in the first embodiment, network side need not to notify the charge information of the relevant conversation on video telephone duration of calling terminal (being UEA); And in this execution mode; Network side through send order H.245 (Command) or indication (Indication) message that the expression network side does not begin to charge as yet to this terminal called, was notified this calling terminal to ignore and is chargeed or timing before detecting terminal called (being UE B) off-hook; After detecting this terminal called off-hook,, notify this calling terminal to begin to charge or timing through send order H.245 or the Indication message that the expression network side begins to charge to this terminal called.For describing conveniently, hereinafter article one order or Indication message H.245 is called H.245 order or Indication message A, second order or Indication message H.245 is called H.245 order or Indication message B.

Idiographic flow is as shown in Figure 6, and step 601 to step 620 is identical with step 201 to step 220 respectively, repeats no more at this.

In step 621, Multimedia Ringback Tone Server sends H.245 order or Indication message A to UEA, and this is not a normal talking for notice UEA, and network side does not begin to charge as yet.UEA can not begin the information of chargeing to user's data representing network side as yet after receiving this order or Indication message A H.245.Such as, on screen, showing information such as ", not beginning as yet to charge " just at playing RBT, notice user network side does not begin to charge as yet.

Step 622 to step 625 is identical with step 221 to step 224 respectively, repeats no more at this.

In step 626, Multimedia Ringback Tone Server is sent out H.245 order or Indication message B to UEA, and notice UE A normal talking begins, and network side begins to charge.

Step 627 and step 628 are identical with step 225 and step 226 respectively, repeat no more at this.

Need to prove that the Connect ACK message in this execution mode in step 618 and the step 624 can exist, also can not exist that actual needs are depended in concrete selection.In addition, order H.245 in the step 621 or Indication message A are except can also being positioned at step 619 step 625 afterwards any position before position as shown in Figure 6.

In the step 625 of this execution mode; The MSC server A can be sent Connect message to UE A, also can not send this message, if the MSC server A is sent this Connect message; Then will be after receiving the ANM that sends from Multimedia Ringback Tone Server; Send this Connect message to UE A again, UE A can handle this message, also can this message not carried out any processing.

Be not difficult to find that the main effect of step 621 and step 626 is in this execution mode whether real video telephone begins the prompting calling terminal.Make this calling terminal can know the duration of call that network side calculates exactly,, solve the problem that the terminal picks up counting in the play multimedia ring back tones process in order to avoid the user of this calling terminal misunderstands to charge information.Since the process of carrying out of whole multimedia CRBT all be need be H.245 support, therefore can represent that network side does not begin the information of chargeing or beginning to charge as yet through H.245 order or Indication message.Adopt which kind of order or Indication message H.245 to represent that corresponding information can be according to prior agreement, such as, H.245 in the following form of Indication (indication) message employing of USER INPUT:

Indication?Message:user?input

UserInputIndication::＝CHOICE

{

nonStandard?NonStandardParameter，

alphanumeric?GeneralString，

}

Then can carry 10000 and represent that video telephone does not begin as yet in " GeneralString " field in the middle of the Indication of the USER INPUT message; Be Multimedia Ring Back Tone service at present; Calling terminal receives after this message; Can think that present session is the multimedia color ring back tone session, does not handle current sessions as the conversation of video telephone; Can carry 10001 in " GeneralString " field in the middle of the Indication of the USER INPUT message and represent that Multimedia Ring Back Tone service finishes; Video telephone begins; Calling terminal receives after this message; Can think that present session is the conversation of video telephone, current sessions will be handled as the conversation of normal visible phone.Because the Indication message of USER INPUT can be carried various data, such scheme only is a kind of possible mode and value.

If with message H.245Command is example, then H.245Command message A can also push away indication (USER INPUT Indication is called for short " UII ") through the user and transmit dual-tone multifrequency (Dualtonemultifrequency; Be called for short " DTMF ") a-signal; Indication UE A stops the terminal timing, and UE A stops timing after receiving this message; With the timer zero clearing, and the prompting user will carry out the multimedia color ring back tone broadcast.H.245Command message B can be through transmitting DTMF B signal, and indication UE A picks up counting, and UE A picks up counting after receiving this message, and the prompting user begins proper communication.

Also possibly adopt other order H.245, indication or other message in the middle of the concrete implementation procedure.Concrete implementation and this execution mode are similar, repeat no more at this.

Need to prove; In this execution mode; The MSC server A can also be in step 616 or step 617; Through the Alerting message or the Connect message that are handed down to UE A, the information that whether this ring can be triggered the broadcast of multimedia color ring back tone sends to UE A, so that UE A accurately timing in view of the above.Such as if there is not this information in the message, then UE A starts timing according to original normal mode.If this information is arranged in the message, then UE A will can not start timing when receiving first Connect message, but wait for that subsequent network transmission indication starts the message of timing, after receiving that indication starts the message of timing, restarts timing.

Whether this ring can trigger the information of the broadcast of multimedia color ring back tone can be come extension realization through the facility field in the message, also can realize through the expansion of the User-User field in the middle of the Connect message.Such as, if the value of User-User field is 1 in Connect message, then indicate UEA not-time when receiving first Connect message; The value of User-User field is 0 in Connect message, then indicates UEA to start timing according to original normal mode.

Be not difficult to find; If be handed down in the Alerting message or Connect message of UE A; Carry this ring and whether can trigger the information of the broadcast of multimedia color ring back tone, then be equal to and carried out step 621, therefore H.245 the transmission of order or Indication message A just can be omitted; But still need send H.245 order or Indication message B, H.245 this order or Indication message B promptly starts the message of timing as above-mentioned indication.

The 6th execution mode of the present invention relates to a kind of video phone call method; This execution mode and first execution mode are roughly the same, and its difference is, in the first embodiment; Network side need not to notify the charge information of the relevant conversation on video telephone duration of calling terminal (being UEA); And in this execution mode, network side is before detecting terminal called (being UE B) off-hook, through send supplementary service data (the Unstructured Supplementary Service Data of the non-structure that expression network side do not begin to charge as yet to this terminal called; Be called for short " USSD ") signal, notify this calling terminal to ignore and charge or timing; After detecting this terminal called off-hook,, notify this calling terminal to begin to charge or timing through send the USSD signal that the expression network side begins to charge to this terminal called.For describing conveniently, hereinafter article one USSD signal is called USSD signal A, second USSD signal is called USSD signal B.

Idiographic flow is as shown in Figure 7, and step 701 to step 720 is identical with step 201 to step 220 respectively, repeats no more at this.

In step 721, the MSC server A is sent USSD signal A to UE A, and this is not a normal talking for notice UE A, and network side does not begin to charge as yet.UEA can not begin the information of chargeing to user's data representing network side as yet after receiving this USSD signal A.Such as, on screen, showing information such as ", not beginning as yet to charge " just at playing RBT, notice user network side does not begin to charge as yet.

Step 722 to step 725 is identical with step 221 to step 224 respectively, repeats no more at this.

In step 726, the MSC server A is sent out USSD signal B to UE A, and notice UE A normal talking begins, and network side begins to charge.

Step 727 and step 728 are identical with step 225 and step 226 respectively, repeat no more at this.

Need to prove that the Connect ACK message in this execution mode in step 718 and the step 724 can exist, also can not exist that actual needs are depended in concrete selection.In addition, the USSD signal A in the step 721 is except can also being positioned at step 716 step 725 afterwards any position before position as shown in Figure 7.

In the step 725 of this execution mode; The MSC server A can be sent Connect message to UE A, also can not send this message, if the MSC server A is sent this Connect message; Then will be after receiving the ANM that sends from Multimedia Ringback Tone Server; Send this Connect message to UE A again, UE A can handle this message, also can this message not carried out any processing.

Be not difficult to find that the main effect of step 721 and step 726 is in this execution mode whether real video telephone begins the prompting calling terminal.Make this calling terminal can know the duration of call that network side calculates exactly,, solve the problem that the terminal picks up counting in the play multimedia ring back tones process in order to avoid the user of this calling terminal misunderstands to charge information.Because USSD is the common communication mode in a kind of terminal, therefore can carries and represent that network side does not begin the information of chargeing or beginning to charge as yet through the USSD signal.Adopt which kind of USSD signal to represent that corresponding information can be according to prior agreement; Such as; The sign that the expression CRBT begins that can utilize the USSD signal to carry, the indication calling terminal is Multimedia Ring Back Tone service at present, this calling terminal receives after this USSD signal; Can think that present session is the multimedia color ring back tone session, does not handle current sessions as the conversation of video telephone; The sign that the expression video telephone begins that can utilize the USSD signal to carry; Indication calling terminal video telephone begins; The terminal receives after this USSD signal, can think that present session is the conversation of video telephone, and current sessions will be handled as the conversation of normal visible phone.The information of different USSD signal indications can be different, and this depends on prior agreement.

In addition, what deserves to be mentioned is, in this execution mode; Whether to have begun to charge through USSD signalisation calling terminal network side is that example describes; In practical application, also can notify this calling terminal through other signaling method, such as; Can be Session initiation Protocol (Session InitationProtocol; Abbreviation " SIP "), HTTP (Hyper Text Transfer Protocol is called for short " HTTP "), real-time streaming protocol (Realtime Streaming Protocol is called for short " RTSP ") signaling or the like.Concrete implementation and this execution mode are similar, and the carrying of different only is bottom is distinct, repeats no more at this.

Need to prove; In this execution mode; The MSC server A can also be in step 716 or step 717; Through the Alerting message or the Connect message that are handed down to UE A, the information that whether this ring can be triggered the broadcast of multimedia color ring back tone sends to UE A, so that UE A accurately timing in view of the above.Such as if there is not this information in the message, then UE A starts timing according to original normal mode.If this information is arranged in the message, then UE A will can not start timing when receiving first Connect message, but wait for that subsequent network transmission indication starts the message of timing, after receiving that indication starts the message of timing, restarts timing.

Be not difficult to find; If be handed down in the Alerting message or Connect message of UE A; Carry this ring and whether can trigger the information of the broadcast of multimedia color ring back tone, then be equal to and carried out step 721, so the transmission of USSD signal A just can be omitted; But still need send USSD signal B, this USSD signal B promptly starts the message of timing as above-mentioned indication.

The 7th execution mode of the present invention relates to a kind of video phone call method; In this execution mode; Multimedia Ringback Tone Server is through the 3rd carrying of the video telephone between calling terminal and Multimedia Ringback Tone Server, set up, to this calling terminal play multimedia ring-back tone.Set up the 4th carrying of video telephone between this calling terminal and the terminal called, be carried on through the 4th and carry out video telephone communication between this calling terminal and the terminal called.The 3rd carries and the 4th is carried as through H.324, H.323 or the video telephone communication link set up of the video telephone agreement of SIP, sets up the 3rd carrying and the 4th with the H.245 process in H.323 in this execution mode and is carried as example and describes.

The network configuration of this execution mode is as shown in Figure 8; Different Multimedia Ringback Tone Servers is set up in different zones; The MSC server still integrates with VLR, is the unification network element, and the MSC server connects through process H.248 still and between the MGW; HLR still integrates with AuC, is the unification network element.Idiographic flow is as shown in Figure 9.

In step 901, calling terminal is that UE A sends out SETUP (foundation) message to the MSC server A of adhering to, and ITC is ' UDI ', ORA is ' H.223&H.245 ' in the BC_IE cell that carries in the message.

Then, in step 902, the MSC server A is the HLR B initiation SRI request of UE B to terminal called.

Then, in step 903, the MSC server B that HLR B adheres to UE B is got the mobile station roaming number MSRN of this UE B.

Then, in step 904, the MSC server B is returned the MSRN of this UE B to HLR B, if the MSC server B is supported pre-paging, at this moment can initiate to return after the pre-paging process MSRN of this UE B earlier again.

Then, in step 905, HLR B returns the routing iinformation (i.e. the MSRN of this UE B) of UE B to the MSC server A, and carries the whether information of customizing multimedia Ring Back Tone service of called subscriber's (promptly using the user of UE B).

Then, in step 906, after the MSC server A obtains the MSRN of UE B, initiate Call_Proceeding (calling procedure) to UE A.

Then, in step 907, the MSC server A is initiated ISUP IAM message to the MSC server B.The CLIP service if the called subscriber has contracted then need carry calling number in this ISUP IAM message.

Then, in step 908, if the MSC server B is not being initiated the pre-paging process before HLR B returns the MSRN of UE B, then in this step, this MSC server B is initiated paging request message to UE B.

Then, in step 909, UE B returns page-response message to this MSC server B.

Then, in step 910, the MSC server B is sent SETUP message to UE B, and ITC is ' UDI ', ORA is ' H.223&H.245 ' in the BC_IE cell that carries in the message.

Then, in step 911, UE B returns CALL CONFIRMED (call out and confirm) message to this MSC server B, does not carry new BC_IE, and expression can be supported the called of video telephone.

Then, in step 912, after the UE B ring, UE B returns Alerting message to the MSC server B.

Then, in step 913, the MSC server B is returned BICC ACM message to the MSC server A.

Then, in step 914, the MSC server A is returned Alerting message to UE A.

Then, in step 915, the MSC server A is initiated BICC IAM message to Multimedia Ringback Tone Server, carries the whether information of customizing multimedia Ring Back Tone service of UE B.

Then, in step 916, Multimedia Ringback Tone Server returns BICC ACM message to the MSC server A.The ACM message that this Multimedia Ringback Tone Server of MSC server A identification is sent, and, do not send Alerting message to calling terminal.

Then, in step 917, Multimedia Ringback Tone Server sends the BICC ANM to the MSC server A.The MSC server A is sent connection signaling CONNECT to calling terminal UEA after receiving this BICCANM message, whether monitor the MSC server B simultaneously has return messages.This ANM is represented to set up the conversation between Multimedia Ringback Tone Server and the UEA, and is used for triggering Connect message.This step is an optional step in the middle of this execution mode, and actual needs are depended in concrete selection.

Then, in step 918, UE A sends ConnectACK (connection response) message to the MSC server A after receiving Connect message.

Then, in step 919, control H.245 process of signaling protocol, the 3rd carrying of setting up video telephone through multimedia communication between UE A and the Multimedia Ringback Tone Server.And after the 3rd of this video telephone carries the foundation completion, watch the multimedia color ring back tone information that Multimedia Ringback Tone Server is play.

Then, in step 920, terminal called UE B sends response message CONNECT and gives the MSC server B.

Then, in step 921, the MSC server B is returned the BICC ANM to the MSC server A.

Then, in step 922, the MSC server B is returned to connect to UE B and is confirmed CONNECT ACK message.

Then, in step 923, the MSC server A is sent BICCRelease (BICC release) message to Multimedia Ringback Tone Server, and the 3rd carrying of setting up between this Multimedia Ringback Tone Server and the UEA is removed in indication.

Then, in step 924, the 3rd carrying of removing the video telephone of being set up between this Multimedia Ringback Tone Server and the UE A.

Then, in step 925, this Multimedia Ringback Tone Server returns BICCRelease Complete (BICC discharges completion) message to the MSC server A.

Then, in step 926, control H.245 process of signaling protocol, the 4th carrying of setting up video telephone through multimedia communication between UE A and the UE B.

Then, in step 927,, between this UEA and UE B, carry out the video telephone communication of 3G circuit domain through the 4th carrying of the video telephone set up between UE A and the UE B.

Then, in step 928, after conversation on video telephone finishes, remove the 4th carrying and the bottom circuit load bearing process of being set up between UE A and the UE B.

Be not difficult to find that in this execution mode, Multimedia Ring Back Tone service can be achieved on the network frame based on the existing visual phone.And, to this calling terminal play multimedia ring-back tone, avoided the terminal is carried out the transformation of protocol level by Multimedia Ringback Tone Server, make the realization of Multimedia Ring Back Tone service of video telephone, can be reduced to minimum degree to the influence at terminal.

In addition, before the 4th carrying of setting up video telephone, need after detecting the terminal called off-hook, remove the 3rd carrying of between this calling terminal and Multimedia Ringback Tone Server, setting up.Make when user's communication is connected, can discharge the shared circuit of Multimedia Ringback Tone Server immediately, practiced thrift limited circuit resource.

What deserves to be mentioned is that in this execution mode, after the 4th of the video telephone between calling terminal and the terminal called carried the foundation completion, network side also need charge to this video telephone communication.Make in the implementation procedure of Multimedia Ring Back Tone service, can carry out accurate Calculation and control the duration of call.

Need to prove; In this execution mode; The MSC server A can also be in step 914 or step 917; Through the Alerting message or the Connect message that are handed down to UE A, the information that whether this ring can be triggered the broadcast of multimedia color ring back tone sends to UE A, so that UE A accurately timing in view of the above.Such as if there is not this information in the message, then UEA starts timing according to original normal mode.If this information is arranged in the message, then UEA will can not start timing when receiving first Connect message, but wait for that subsequent network transmission indication starts the message of timing, after receiving that indication starts the message of timing, restarts timing.

Whether this ring can trigger the information of the broadcast of multimedia audible ringing tone can be come extension realization through the facility field in the message, also can realize through the expansion of the User-User field in the middle of the Connect message.Such as, if the value of User-User field is 1 in Connect message, then indicate UE A not-time when receiving first Connect message; The value of User-User field is 0 in Connect message, then indicates UE A to start timing according to original normal mode.

The 8th execution mode of the present invention relates to a kind of video phone call method; This execution mode is roughly the same with the 7th execution mode; Its difference is; In the 7th execution mode, the 3rd carries and the 4th is carried as through H.324, H.323 or the video telephone communication link of the video telephone agreement of SIP foundation; And in this execution mode, the 3rd carries and the 4th is carried as the CSD link, the logical channel of video telephone through H.324, H.323 or SIP video telephone communication agreement on the CSD link, set up.Wherein, the 3rd carry and to be decomposed into: carry to the 5th the MSC server of this calling terminal by calling terminal, and the MSC server of this calling terminal carries to the 6th between the Multimedia Ringback Tone Server; The 4th carries and can be decomposed into: calling terminal carries to the 5th between the MSC server of this calling terminal, and the MSC server of calling terminal carries to the 7th between the terminal called.

Idiographic flow is shown in figure 10, and step 1001 to step 1018 is identical with step 901 to step 918 respectively, repeats no more at this.

In step 1019, between UE A and MSC server A, set up the 5th carrying earlier, between MSC server A and Multimedia Ringback Tone Server, set up the 6th carrying.The 5th carrying and the 6th is carried and is the CSD link.Then, on the basis that the 5th carrying and the 6th is carried, set up H.245 process.After the foundation, the calling terminal user can watch the multimedia audible ringing tone that Multimedia Ringback Tone Server is play.

Step 1020 to step 1024 is identical with step 920 to step 924 respectively, repeats no more at this.

In step 1025, Multimedia Ringback Tone Server returns BICC ReleaseComplete (BICC discharges completion) message to the MSC server A.The MSC server A is sent Facility message to UEA, and this message representes that the carrying (i.e. six carryings) of MSC server A and Multimedia Ringback Tone Server removes, and the CS64kbps carrying between MSC server A and the MSC server B is set up.Certainly, carrying this information through facility message is a kind of concrete implementation, in fact also can substitute with other message.It is UE A that the main purpose of this step is to point out calling terminal; Calling procedure at whole video telephone can relate to the twice H.245 foundation of load bearing process; Indicate this UE A after receiving facility message; For secondary H.245 load bearing process (being the 4th carrying of the video telephone between UE A and the UE B) is prepared, prepare carry out on the link of existing C S64kbp and UE B between the foundation of carrying.

This step not only can appear at position shown in figure 10, also possibly appear at any position between step 1023 to the step 1026, and its effect mainly is to be used to point out carry out the twice H.245 foundation of load bearing process.

In step 1026, the 5th carrying between existing UE A and MSC server A, and on the basis of the carrying of the 7th between MSC server A and the UE B, set up H.245 process, promptly set up the 4th carrying between calling terminal UE A and the terminal called UE B.

Step 1027 and step 1028 are identical with step 927 and step 928 respectively, repeat no more at this.

Be not difficult to find that this execution mode is compared with the 7th execution mode, and 2 the H.245 foundation of load bearing process faster can be provided, and the change workload is little, does not have the obstacle of realization.

The 9th execution mode of the present invention relates to a kind of video phone call method; This execution mode is on the basis of the 7th execution mode; Initiate H.245 to hang up voluntarily process respectively through UE A and Multimedia Ringback Tone Server, reach the purpose of removing the 3rd carrying of video telephone between UE A and the Multimedia Ringback Tone Server.Idiographic flow is shown in figure 11.

Step 1101 to step 1120 is identical with step 901 to step 920 respectively, repeats no more at this.

In step 1121, the MSC server B is returned the BICC ANM to the MSC server A.And the MSC server A is sent facility message to UE A.After UE A receives this facility message, initiate H.245 to hang up voluntarily flow process (promptly not hanging up signaling " End Session "), and directly discharge local resource to the other side's transmission of communication.

Step 1122 is identical with step 923.

In step 1123; The MSC server A is sent BICC Release (BICC release) message to Multimedia Ringback Tone Server; After this Multimedia Ringback Tone Server is received this message, initiate H.245 to hang up voluntarily flow process (promptly not hanging up signaling " End Session ") to the other side's transmission of communication.

In step 1124, UE A accomplish H.245 hang up flow process voluntarily after, the carrying of initiating is for the second time H.245 set up, and promptly initiates the process of setting up of the 4th carrying of video telephone between the UE A described in the 7th execution mode and the UE B.

In step 1125, Multimedia Ringback Tone Server returns BICC ReleaseComplete (BICC discharges completion) message to the MSC server A.

Step 1126 is identical with step 927 and step 928 respectively with step 1127, repeats no more at this.

Be not difficult to find; This execution mode is with the difference of the 7th execution mode; Issue a prompting message (being above-mentioned facility message) by network side to calling terminal, the playing process of this Multimedia Ring Back Tone service of indication calling terminal finishes, and requires this calling terminal to set up second carrying H.245.Calling terminal can be initiated one from the flow process of hanging up after receiving this prompting message.H.245 carrying between that set up like this, the for the first time and Multimedia Ringback Tone Server will finish through the mode that calling terminal is hung up communication link.A process like this meets normal call flow, and, further reduced the time that whole network continues, reduced the time of professional switching, improved user's experience.

Can will regard the whole multimedia Ring Back Tone service as twice conversation, conversation for the first time is as Multimedia Ring Back Tone service, and conversation is as the conversation of normal video telephone for the second time.The prompting message that calling terminal issues according to network side; Finish the session of whole multimedia CRBT with the mode of hanging up certainly; And after hanging up session certainly; Initiate the process of setting up of H.245 carrying of a new conversation that is used for video telephone, thereby realize the conversation of normal video telephone smoothly.

In step 1123, after Multimedia Ringback Tone Server is received the BICCRelease message from the MSC server A, can initiate one from the flow process of hanging up.Multimedia Ringback Tone Server can be used as a terminal in logic and occurs in the middle of the whole multimedia Ring Back Tone service, multimedia CRBT content is provided.After the process that the multimedia color ring back tone content is provided finished, participation one side that this Multimedia Ringback Tone Server can be used as session participated in the demolishing process that whole multimedia color ring back tone carries.

UEA initiates hang up flow process and Multimedia Ringback Tone Server initiation certainly hang up flow process certainly; The function of accomplishing similar basically (promptly removing the carrying between the UE A Multimedia Ringback Tone Server); Therefore; That in fact can only in UE A, initiate hangs up flow process certainly, or only in Multimedia Ringback Tone Server, initiate hang up flow process certainly.But, from the consideration of the collaborative work of whole system, for the minimizing system that tries one's best make mistakes maybe; Also can in UEA and Multimedia Ringback Tone Server, initiate respectively from hanging up flow process; And in practical application, these two from hanging up the sequencing that flow process does not have strictness.In addition, in the step 1123 of this execution mode, the MSC server A is to the BICC Release message that Multimedia Ringback Tone Server sends, and is actually to be used to indicate this Multimedia Ringback Tone Server to carry out from hanging up process.Therefore, if this Multimedia Ringback Tone Server is not carried out from the process of hanging up, then step 1123 can be omitted.

Be not difficult to find; In first to the 6th execution mode of the present invention; After the whole multimedia Ring Back Tone service was accomplished, Multimedia Ringback Tone Server also need reside in the middle of the communication process of follow-up video telephone, bears an effect of server back-to-back; For describing conveniently, this scheme is called the cross-over connection scheme.In the 7th to the 9th execution mode of the present invention; After the whole multimedia Ring Back Tone service is accomplished, need to remove the communication link between Multimedia Ringback Tone Server and the calling terminal, need set up the communication link that is used for visual telephone service between calling terminal and the terminal called; This scheme biggest characteristic is; Calling terminal needs to set up carrying H.245 with Multimedia Ringback Tone Server, terminal called respectively, for describing conveniently, this scheme is called non-cross-over connection scheme.

The tenth execution mode of the present invention relates to a kind of video phone call method, and this execution mode is the cross-over connection scheme in first to the 6th execution mode, and in the 7th to the 9th execution mode is the fusion of non-cross-over connection scheme.

Specifically, calling terminal carries the type (promptly being to support the cross-over connection scheme or support non-cross-over connection scheme) of the CRBT scheme of supporting at this terminal in sending to the SETUP message of MSC server A.Such as, can be through the value of User-User field in the SETUP message, what come the indicating terminal support is non-cross-over connection scheme, or the cross-over connection scheme.Can arrange in advance, User-User field value is 0 o'clock, representes that this terminal supports the cross-over connection scheme, and User-User field value is 1 o'clock, representes that this terminal supports non-cross-over connection scheme.

If what network side was found the calling terminal support is the cross-over connection scheme, then flow can be identical with the arbitrary execution mode in above-mentioned first to the 6th execution mode; If what network side was found the calling terminal support is non-cross-over connection scheme, then flow can be identical with the arbitrary execution mode in above-mentioned the 7th to the 9th execution mode, repeats no more at this.

The 11 execution mode of the present invention relates to a kind of video phone call system, and is shown in figure 12, comprising: carry and set up the unit, be used between calling terminal and Multimedia Ringback Tone Server, setting up first of video telephone and carry; The multimedia audible ringing tone broadcast unit is used for setting up first carrying that the unit is set up through this carrying, to this calling terminal play multimedia ring-back tone; Detecting unit; Be used to detect whether off-hook of terminal called; And after detecting this terminal called off-hook; Set up this terminal called of unit indication off-hook to this carrying, this carrying is set up the unit and also is used for after this indication of receiving this detecting unit, between this terminal called and this Multimedia Ringback Tone Server, sets up second of video telephone and carries; Communication unit is used for setting up first carrying and second of setting up the unit through this carrying and carries, and between this calling terminal and this terminal called, carries out video telephone communication.Make Multimedia Ring Back Tone service to be achieved on the network frame based on the existing visual phone.And, to this calling terminal play multimedia ring-back tone, avoided the terminal is carried out the transformation of protocol level by the multimedia audible ringing tone broadcast unit, make the realization of Multimedia Ring Back Tone service of video telephone, can be reduced to minimum degree to the influence at terminal.

Wherein, the multimedia audible ringing tone broadcast unit is positioned at Multimedia Ringback Tone Server, and carrying is set up the unit and set up this first carrying and this second carrying through video telephone signaling protocol process.This video telephone signaling protocol can be for H.324, H.323 or the video telephone signaling protocol of SIP.

What deserves to be mentioned is, in the video phone call system of this execution mode, can also comprise Charging Detail Record unit, be used for video telephone communication is chargeed; This detecting unit also is used for after detecting the terminal called off-hook, and to this this terminal called of Charging Detail Record unit indication off-hook, this Charging Detail Record unit begins to charge to video telephone communication after receiving this indication.Make in the implementation procedure of Multimedia Ring Back Tone service, can carry out accurate Calculation and control the duration of call.

In the video phone call system of this execution mode, can also comprise notification unit, be used to notify calling terminal to ignore and charge or timing, and the notice calling terminal begins to charge or timing.This detecting unit also is used for after detecting the terminal called off-hook, to this this terminal called of notification unit indication off-hook.This notification unit was notified this calling terminal to ignore and is chargeed or timing before this indication of receiving this detecting unit, after this indication of receiving this detecting unit, notified this calling terminal to begin to charge or timing.Make this calling terminal can know the duration of call that network side calculates exactly, in order to avoid the user of this calling terminal misunderstands to charge information.

The 12 execution mode of the present invention relates to a kind of video phone call system; Shown in figure 13; Comprise: carry and set up the unit; Be used between calling terminal and Multimedia Ringback Tone Server, setting up the 3rd carrying of video telephone, between this calling terminal and terminal called, set up the 4th carrying of video telephone.The multimedia audible ringing tone broadcast unit is used for setting up the 3rd of unit foundation through this carrying and carries to this calling terminal play multimedia ring-back tone.Communication unit is used for setting up the 4th carrying that the unit is set up through this carrying, between this calling terminal and this terminal called, carries out video telephone communication.Make Multimedia Ring Back Tone service to be achieved on the network frame based on the existing visual phone.

The video phone call system of this execution mode can also comprise: detecting unit, be used to detect whether off-hook and carry and remove the unit of terminal called, and be used for removing and carry.

If the 3rd carrying and the 4th is carried as circuit switched data CSD link, and the 3rd is carried in logic and can be decomposed into: calling terminal carries to the 6th between the Multimedia Ringback Tone Server to the MSC server of the carrying of the 5th between the MSC server of this calling terminal and this calling terminal; The 4th is carried in logic and can be decomposed into: the MSC server of the 5th carrying and calling terminal carries to the 7th between the terminal called.So; This detecting unit is after detecting this terminal called off-hook; Carry this terminal called of dismounting unit indication off-hook to this, this carrying is removed unit after receiving this indication, removes and carries to the 6th between the Multimedia Ringback Tone Server at the MSC of calling terminal server.

If the 3rd carries and the 4th is carried as through H.324, H.323 or the video telephone communication link of the video telephone agreement of SIP foundation; Then this detecting unit is after detecting this terminal called off-hook; Carry this terminal called of dismounting unit indication off-hook to this; This carrying is removed the unit after receiving this indication, removes this carrying and sets up the 3rd carrying that the unit is set up, and indicate this carrying to set up the unit and set up the 4th carrying.

This shows that (detection arrives this terminal called off-hook) can discharge the shared circuit of Multimedia Ringback Tone Server immediately when user's communication is connected, therefore can effectively practice thrift limited circuit resource.

In sum, in embodiments of the present invention, Multimedia Ringback Tone Server carries through first of the video telephone between calling terminal and Multimedia Ringback Tone Server, set up, to this calling terminal play multimedia ring-back tone.After detecting the terminal called off-hook; Between this terminal called and this Multimedia Ringback Tone Server, setting up second of video telephone carries; First carrying of passing through to be set up and second is carried, and between this calling terminal and this terminal called, carries out video telephone communication.Perhaps, Multimedia Ringback Tone Server is through the 3rd carrying of the video telephone between calling terminal and Multimedia Ringback Tone Server, set up, to this calling terminal play multimedia ring-back tone.Set up the 4th carrying of video telephone between this calling terminal and the terminal called, be carried on through the 4th and carry out video telephone communication between this calling terminal and the terminal called.Make Multimedia Ring Back Tone service to be achieved on the network frame based on the existing visual phone.And, to this calling terminal play multimedia ring-back tone, avoided the terminal is carried out the transformation of protocol level by Multimedia Ringback Tone Server, make the realization of Multimedia Ring Back Tone service of video telephone, can be reduced to minimum degree to the influence at terminal.

Network side charges to video telephone communication after detecting terminal called off-hook (or accomplishing the 4th foundation of carrying) again, makes in the implementation procedure of Multimedia Ring Back Tone service, can carry out accurate Calculation and control to the duration of call.

Before detecting the terminal called off-hook, notify this calling terminal to ignore charging, after detecting this terminal called off-hook, notify this calling terminal to begin to charge.Make this calling terminal can know the duration of call that network side calculates exactly, in order to avoid the user of this calling terminal misunderstands to charge information.

Carrying out in the scheme of video telephone communication through the 4th carrying, before the step of the 4th carrying of setting up video telephone, need after detecting the terminal called off-hook, remove the 3rd carrying of between this calling terminal and Multimedia Ringback Tone Server, setting up.Make when user's communication is connected, can discharge the shared circuit of Multimedia Ringback Tone Server immediately, practiced thrift limited circuit resource.

Though through reference some preferred implementation of the present invention; The present invention is illustrated and describes; But those of ordinary skill in the art should be understood that and can do various changes to it in form with on the details, and without departing from the spirit and scope of the present invention.

Claims

1. a video phone call method is characterized in that, may further comprise the steps:

Said Multimedia Ringback Tone Server carries to said calling terminal play multimedia ring-back tone through the said the 3rd;

The moving exchanging center MSC server sends prompting message to said calling terminal after detecting the terminal called off-hook, this prompting message is used in reference to and is shown in the 4th carrying of setting up video telephone between said calling terminal and the said terminal called;

According to said prompting message, between said calling terminal and terminal called, set up the 4th carrying of video telephone, be carried on through the 4th and carry out video telephone communication between said calling terminal and the terminal called.

2. video phone call method according to claim 1 is characterized in that, said the 3rd carrying and the 4th is carried as circuit switched data CSD link;

Said the 3rd carrying is made up of to the carrying of the 6th the said Multimedia Ringback Tone Server to the MSC server of the carrying of the 5th the MSC server of this calling terminal and this calling terminal said calling terminal;

Said the 4th carrying is carried by the said the 5th and the MSC server of said calling terminal is formed to the carrying of the 7th the said terminal called.

3. video phone call method according to claim 2 is characterized in that, sets up before the 4th of video telephone carries said, and said method also comprises:

After detecting said terminal called off-hook, remove said the 6th carrying.

4. video phone call method according to claim 1 is characterized in that, the said the 3rd carries and the 4th be carried as through H.324, H.323 or the video telephone communication link of the video telephone agreement of Session initiation Protocol SIP foundation;

Set up before the 4th of video telephone carries said, said method also comprises:

After detecting said terminal called off-hook, remove said the 3rd carrying.

5. video phone call method according to claim 4 is characterized in that, said dismounting the said the 3rd is carried and is:

Be used to indicate this calling terminal to initiate to said calling terminal transmission from the message of hanging up flow process, and/or, be used to indicate this Multimedia Ringback Tone Server to initiate to hang up certainly the message of flow process to said Multimedia Ringback Tone Server transmission.

6. video phone call method according to claim 1 is characterized in that, said the 4th carrying of setting up video telephone comprises:

H.245, the process that initiation rebulids on the basis of original video telephone communication link; Perhaps, initiate the H.324 process that rebulids of video telephone communication by said calling terminal.

7. video phone call method according to claim 1 is characterized in that, sets up after the 4th of video telephone carries said, and said method also comprises:

Network side charges to said video telephone communication.

8. a video phone call method is characterized in that, may further comprise the steps:

Between said calling terminal and terminal called, set up the 4th carrying of video telephone, be carried on through the 4th and carry out video telephone communication between said calling terminal and the terminal called;

Wherein, before detecting said terminal called off-hook, notify said calling terminal to ignore and charge or timing, after detecting this terminal called off-hook, notify said calling terminal to begin to charge or timing.

9. video phone call method according to claim 8 is characterized in that, saidly notifies said calling terminal to ignore to charge or timing is:

Be handed down to the Alerting message or the Connect message of calling terminal through the moving exchanging center MSC server, the information that whether this ring can be triggered the broadcast of multimedia color ring back tone sends to calling terminal, so that calling terminal accurately timing in view of the above.

10. video phone call method according to claim 9 is characterized in that,

Whether said this ring can trigger the information of the broadcast of multimedia audible ringing tone, comes extension realization through the facility field in Alerting message or the Connect message, and perhaps the expansion through the User-User field in the middle of the Connect message realizes.

11. video phone call method according to claim 9 is characterized in that, saidly notifies said calling terminal to begin to charge or timing is:

If there is this ring whether can trigger the information of the broadcast of multimedia color ring back tone in Alerting message or the Connect message; Then calling terminal will can not start timing when receiving first Connect message; But wait for that subsequent network transmission indication starts the message of timing; After receiving that indication starts the message of timing, restart timing.

12. a video phone call method is characterized in that, comprising:

The moving exchanging center MSC server receives the message of setting up of said video phone call that calling terminal sends, and this sets up the type of carrying the CRBT scheme that this calling terminal supports in the message;

If the type of the CRBT scheme of said calling terminal support is non-cross-over connection scheme, then carry out the calling of said video telephone according to each described method of claim 1 to 11.

13. video phone call method according to claim 12 is characterized in that, said method also comprises:

If the type of the CRBT scheme of said calling terminal support is the cross-over connection scheme, then carry out the calling of said video telephone: between calling terminal and Multimedia Ringback Tone Server, set up first of video telephone and carry according to following steps; Said Multimedia Ringback Tone Server carries to said calling terminal play multimedia ring-back tone through said first; After the MSC server detects the terminal called off-hook, between this terminal called and said Multimedia Ringback Tone Server, set up second of video telephone and carry; Carry through said first carrying and second, between said calling terminal and terminal called, carry out video telephone communication.

14. a video phone call system is characterized in that, comprising:

The unit is set up in carrying, is used between calling terminal and Multimedia Ringback Tone Server, setting up the 3rd carrying of video telephone;

The multimedia audible ringing tone broadcast unit is used for carrying to said calling terminal play multimedia ring-back tone through the said the 3rd;

Detecting unit is used to detect whether off-hook of terminal called; After detecting this terminal called off-hook, indication is carried and is set up the 4th carrying that video telephone is set up in the unit; Wherein, behind the terminal called off-hook, send prompting message to said calling terminal in said detection, this prompting message is used in reference to and is shown in the 4th carrying of setting up video telephone between said calling terminal and the said terminal called;

The unit is set up in said carrying, also is used between said calling terminal and terminal called, setting up the 4th carrying of video telephone;

Communication unit is used between said calling terminal and said terminal called, carrying out video telephone communication through said the 4th carrying.

15. video phone call according to claim 14 system is characterized in that, the said the 3rd carries and the 4th is carried as circuit switched data CSD link; Said the 3rd carrying is made up of to the carrying of the 6th the said Multimedia Ringback Tone Server to the MSC server of the carrying of the 5th the moving exchanging center MSC server of this calling terminal and this calling terminal said calling terminal; Said the 4th carrying is carried by the said the 5th and the MSC server of said calling terminal is formed to the carrying of the 7th the said terminal called;

Said system also comprises: carry to remove the unit, be used for receiving that said detection after the indication of terminal called off-hook, removes said the 6th carrying.

16. video phone call according to claim 14 system is characterized in that, the said the 3rd carries and the 4th is carried as through H.324, H.323 or the video telephone communication link of the video telephone agreement of Session initiation Protocol SIP foundation;

Said system also comprises: carry to remove the unit, be used for receiving that said detection after the indication of terminal called off-hook, removes said the 3rd carrying.

17. a video phone call system is characterized in that, comprising:

Detecting unit is used to detect whether off-hook of terminal called; And after detecting said terminal called off-hook, set up the unit to said carrying and indicate said terminal called off-hook;

The unit is set up in said carrying, also is used for after the indication of receiving said detecting unit, between said calling terminal and terminal called, sets up the 4th carrying of video telephone;

Communication unit is used between said calling terminal and said terminal called, carrying out video telephone communication through said the 4th carrying;

Wherein, before detecting the terminal called off-hook, notify this calling terminal to ignore and charge or timing, after detecting this terminal called off-hook, notify this calling terminal to begin to charge or timing.