CN102291379A - Conference creating method and system based on back-to-back user agent - Google Patents
Conference creating method and system based on back-to-back user agent Download PDFInfo
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- CN102291379A CN102291379A CN2010102121303A CN201010212130A CN102291379A CN 102291379 A CN102291379 A CN 102291379A CN 2010102121303 A CN2010102121303 A CN 2010102121303A CN 201010212130 A CN201010212130 A CN 201010212130A CN 102291379 A CN102291379 A CN 102291379A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
- H04L65/403—Arrangements for multi-party communication, e.g. for conferences
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Abstract
The invention discloses a conference creating method based on a back-to-back user agent, which comprises the following steps of: modifying an initial filter rule of an initiator user of an initial requirement after an application server (AS) executing the action of the back-to-back user agent (B2BUA) receives the initial requirement of dialogue; and triggering the AS which executes the B2BUA action after a serving call session control function entity (S-CSCF) receives a subsequent request message which meets the modified initial filter rule. The invention simultaneously discloses a conference creating system based on the back-to-back user agent, which comprises the AS, a home subscriber server (HSS) and the S-CSCF, the system comprises modifying devices arranged in the AS which executes the B2BUA action and in the S-CSCF and used for modifying the initial filter rule of the initiator user of the initial requirement, and a triggering unit arranged in the S-CSCF and used for triggering the AS which executes the B2BUA action. After the AS which executes the B2BUA action is added, the accurate access of the user requirement can still be ensured.
Description
Technical field
The present invention relates to meeting and set up technology, relate in particular to a kind of IP Multimedia System (IMS that is applied to, IP Multimedia Subsystem) meeting method for building up and system in based on back-to-back user agent (B2BUA, Back to Back User Agent).
Background technology
Third generation partner program (3GPP, 3rd Generation Partner Project) defined application server (AS, Application Server) handling Session initiation Protocol (SIP, Session Initiation Protocol) during message, behavior pattern can be agency's (Proxy), route back-to-back user agent (Routeing B2BUA, Routeing Back to Back User Agent) or initial back-to-back user agent (Initiating B2BUA).When AS adopted Routeing B2BUA or Initiating B2BUA behavior pattern, the session identification of AS both sides (Dialog ID) was revised via AS, and the Dialog ID of AS both sides will be different.
Fig. 1 is the schematic diagram of AS execution B2BUA behavior, and as shown in Figure 1, at the request of dialogue 1, B2BUA-1 uses new dialogue 2 to transmit and asks owing to carry out the B2BUA behavior; Idiographic flow is as follows:
Step 101, the UE-A request of making a call wherein, is carried dialog information and can be talked with 1 in the call request;
Step 102 after service call session control function entity (S-CSCF, Serving Call Session Control Function) is received this call request, according to the signatory rule of user UE-A, is set out this call request to B2BUA-1;
Step 103 because this B2BUA-1 is made the function of B2BUA, after it receives call request, is replaced 1 information of the dialogue in this request, as replaces to dialogue 2, and it is transmitted to S-CCSF;
Step 104, S-CSCF may also can set out this call request to other AS according to user's signatory rule, finally arrives the UE-B called subscriber;
Step 105, the dialog information in the call request of receiving called this moment are exactly the information of dialogue 2, and reply 200OK and reply;
Step 106 after S-CSCF receives that this 200OK replys, triggers this response message to B2BUA-1 again;
Step 107, B2BUA-1 is according to talking with the relation of changing before, and the dialog information during the 200OK that receives is replied converts the information of dialogue 1 to, and is transmitted to S-CSCF;
Step 108, the 200OK that S-CSCF will change again replys and is transmitted to UE-A.
Can see in this process that again the dialogue that UE-A faces is dialogue 1, and the dialogue that UE-B faces is dialogue 2, its associate management is responsible for by B2BUA-1;
About the multiple mode of establishing of meeting, wherein a kind of scene is by the conference applications server user to be added in the convention business in the prior art.The flow chart that Fig. 2 sets up for existing convention business, as shown in Figure 2, wherein UE-A and UE-B have set up a session earlier, and UE-A sets up a convention business more then, the conversation that realizes in the convention business of foundation is in many ways added UE-B in hope, and its normal process is as follows:
Step 201, UE-A has initiated to call for and has asked;
Step 202 will be risen to call for by proxy call conversation control function entity (P-CSCF, Proxy Call Session Control Function) and ask on the S-CSCF that sends to UE-A service;
Step 203, S-CSCF should rise to call for to ask and send to called subscriber UE-B;
Step 204～step 206, UE-B sends 200OK and replys to UE-A, and the dialogue of setting up between UE-A and the UE-B this moment can be called dialogue 1;
Step 207, UE-A wishes to carry out MPTY, gives meeting AS so initiate the meeting request of setting up;
Step 208～step 209, by P-CSCF, S-CSCF sends to meeting AS with this meeting request of setting up;
Step 213～step 215, this moment, UE-A wished UE-B is added in the convention business of firm foundation, and substituted the dialogue between original UE-A and the UE-B, and UE-A sends (REFER) request of shifting to meeting AS, wherein carry a Replaces header field or parameter, its value is the information of dialogue 1;
Step 216～step 217 after meeting AS receives this transfer request, sends a new call request to called subscriber UE-B, wherein also carries a Replaces header field or parameter, and its value is the information of dialogue 1;
Step 218 after UE-B receives this call request, at first finds dialogue 1 information on the UE-B, determines that this new calling is to substitute the dialogue of original foundation 1;
Step 219～step 220 after UE-B agrees this request, sends 200OK to meeting AS and replys;
Step 221～step 223, UE-B sends the original dialogue 1 of request end to UE-A simultaneously;
Step 224～step 226, UE-A sends 200OK, accepts the end of dialogue 1.
Talk with 1 and just be replaced in the convention business this moment, but do not consider to have in the process that session sets up the situation of B2BUA in the superincumbent process, because in the network of existing IMS, having a lot of AS can participate in user's the session to user's service, is very common situation so in the process that session is set up the appearance of B2BUA is arranged.
Fig. 3 sets up the flow chart that B2BUA is arranged in the process for existing convention business, as shown in Figure 3, sets up when B2BUA occurring in the process in meeting shown in Figure 2, and concrete handling process is as follows:
Step 301～step 302, the user initiates one and rises to call for and ask, and is identical with step 201～step 202 shown in Figure 2;
Step 303, S-CSCF should rise to call for to ask to trigger and give B2BUA-1 according to user's signatory rule;
Step 304 because B2BUA-the 1st, works as back-to-back user agent, and therefore, B2BUA-1 will rise to be called for dialogue 1 information of asking and replace to dialogue A and be transmitted to UE-B again;
Step 305, UE-B replys 200OK and replys, and the dialog information that this moment, UE-B upward set up is dialogue 2;
Step 306～step 308, B2BUA-1 is transmitted to UE-A with the 200OK of UE-B, wherein will talk with the information that A converts dialogue 1 to again, and what set up this moment on UE-A is dialogue 1;
Step 309～step 319 is processes that meeting is set up, and it is identical with step 207～step 217 shown in Figure 2 that process is set up in this meeting;
Step 320 after UE-B receives the call request that meeting AS sends, is searched talking with 1 since before talk with 1 set up and passed through a B2BUA-1 in the process, so on UE-B, do not talk with 1 information;
Step 321, owing to can not find the information of dialogue 1, UE-B can refuse the call request that meeting AS sends over, thereby makes this interpolation procedure failure.
Obviously, set up when having B2BUA to participate in the process,, will cause calling out the failure of interpolation if still adopt existing call flow when convention business.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of meeting method for building up and system based on back-to-back user agent, can be in having the call flow of back-to-back user agent, and when making a call request, resolve exactly and make a call.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of meeting method for building up based on back-to-back user agent comprises:
Receive after the initial request of dialogue as the AS that carries out the B2BUA behavior, revise the initiator user's of described initial request initial filter criteria;
When S-CSCF receives the subsequent request message that meets amended initial filter criteria, trigger the AS of described execution B2BUA behavior.
Preferably, amended initial filter criteria is:
S-CSCF for described initiator user, in receiving subsequent request message, carry alternative parameter or replace header field, and the value of alternative parameter or replacement header field is the dialogue of being set up, recipient user in the described subsequent request message by the recipient user of foundation dialogue, at the AS of the described execution B2BUA of described subsequent request message trigger behavior.
Preferably, the AS of described execution B2BUA behavior and described S-CSCF are described initiator user's AS and S-CSCF;
The initial filter criteria of revising described initiator user is specially: by the AS of the described execution B2BUA behavior modification to initial filter criteria among the home subscriber server HSS;
Described method also comprises: HSS notifies described initiator user's S-CSCF to revise described initiator user's initial filter criteria after revising initial filter criteria.
Preferably, the described subsequent request message subsequent request message that is described initiator user or described recipient user; Described subsequent request message is for inviting the INVITE request message or shifting the REFER request message.
Preferably, described method also comprises:
Amended initial filter criteria is positioned over the head of the queue that initial filter criteria triggers sequence.
Preferably, described AS at the behavior of the described execution B2BUA of described subsequent request message trigger, for:
After described initiator user's S-CSCF receives described subsequent request message, judge when described subsequent request message meets described amended initial filter criteria, described subsequent request message is sent to the AS of described execution B2BUA behavior, and the AS that triggers the behavior of described execution B2BUA is to the alternative parameter in the described subsequent request message or replace header field and replace;
Described method also comprises:
Described subsequent request message after the AS of described execution B2BUA behavior will replace sends to described initiator user's S-CSCF; Described initiator user's S-CSCF initiates to the described recipient user request of making a call at the described subsequent request message after replacing.
Preferably, described AS at the behavior of the described execution B2BUA of described subsequent request message trigger, for:
After described initiator user's S-CSCF receives described subsequent request message, send described subsequent request message to meeting AS, meeting AS sends call request to described initiator user's S-CSCF; Carry the alternative parameter of described subsequent request message in the described call request or replace header field;
Described initiator user's S-CSCF judges when the call request from meeting AS that is received meets described amended initial filter criteria, the call request that is received is sent to described B2BUA, and the AS that triggers the behavior of described execution B2BUA replaces alternative parameter in the described subsequent request message or replacement header field;
Described method also comprises:
Described subsequent request message after the AS of described execution B2BUA behavior will replace sends to described initiator user's S-CSCF; Described initiator user's S-CSCF initiates to the described recipient user request of making a call at the described subsequent request message after replacing.
System is set up in a kind of meeting based on back-to-back user agent, includes AS, HSS and S-CSCF; Described system comprises revises unit and trigger element; Wherein,
Revise the unit, be arranged at, be used for after receiving the initial request of dialogue, revising the initiator user's of described initial request initial filter criteria as among the AS and S-CSCF that carry out the B2BUA behavior;
Trigger element is arranged among the S-CSCF, is used for triggering the AS of described execution B2BUA behavior when receiving the subsequent request message that meets amended initial filter criteria.
Preferably, amended initial filter criteria is:
S-CSCF for described initiator user, in receiving subsequent request message, carry alternative parameter or replace header field, and the value of alternative parameter or replacement header field is the dialogue of being set up, recipient user in the described subsequent request message by the recipient user of foundation dialogue, at the AS of the described execution B2BUA of described subsequent request message trigger behavior.
Preferably, the AS of described execution B2BUA behavior and described S-CSCF are described initiator user's AS and S-CSCF;
Described modification unit also is used for the modification to the HSS initial filter criteria;
Described HSS further notifies described initiator user's S-CSCF to revise described initiator user's initial filter criteria after revising initial filter criteria.
Preferably, the described subsequent request message subsequent request message that is described initiator user or described recipient user; Described subsequent request message is INVITE request message or REFER request message.
Preferably, described system also comprises:
Placement unit is used for amended initial filter criteria is positioned over the head of the queue that initial filter criteria triggers sequence.
Preferably, described initiator user's S-CSCF is after receiving described subsequent request message, further judge when described subsequent request message meets described amended initial filter criteria, described subsequent request message is sent to the AS of described execution B2BUA behavior, and the AS that triggers the behavior of described execution B2BUA is to the alternative parameter in the described subsequent request message or replace header field and replace;
The AS of described execution B2BUA behavior also is used for the described subsequent request message after replacing is sent to described initiator user's S-CSCF; Described initiator user's S-CSCF initiates to the described recipient user request of making a call at the described subsequent request message after replacing.
Preferably, described initiator user's S-CSCF further sends described subsequent request message to meeting AS after receiving described subsequent request message, and meeting AS also is used for sending call request to described initiator user's S-CSCF; Carry the alternative parameter of described subsequent request message in the described call request or replace header field;
Described initiator user's S-CSCF further judges when the call request from meeting AS that is received meets described amended initial filter criteria, the call request that is received is sent to described B2BUA, and the AS that triggers the behavior of described execution B2BUA replaces alternative parameter in the described subsequent request message or replacement header field;
The AS of described execution B2BUA behavior also is used for the described subsequent request message after replacing is sent to described initiator user's S-CSCF; Described initiator user's S-CSCF initiates to the described recipient user request of making a call at the described subsequent request message after replacing.
Among the present invention, after the AS of execution B2BUA behavior receives initial session request, after receiving the initial request of dialogue, revise the initiator user's of described initial request initial filter criteria; When S-CSCF receives the subsequent request message that meets amended initial filter criteria, trigger the AS of described execution B2BUA behavior.Like this, when recipient user's S-CSCF receives subsequent request message, judge whether to meet amended initial filter criteria, and after when meeting, the subsequent request message that is received being carried out corresponding initial filter criteria, initiate the corresponding call request again.The present invention still can guarantee the correct foundation of meeting that the user asks after setting up the AS that carries out the B2BUA behavior.
Description of drawings
Fig. 1 carries out the schematic diagram of B2BUA behavior for AS;
The flow chart that Fig. 2 sets up for existing convention business;
Fig. 3 sets up the flow chart that B2BUA is arranged in the process for existing convention business;
Fig. 4 is the flow chart that the present invention is based on the meeting method for building up application example one of back-to-back user agent;
Fig. 5 is the flow chart that the present invention is based on the meeting method for building up application example two of back-to-back user agent;
Fig. 6 is the composition structural representation that system is set up in the meeting that the present invention is based on back-to-back user agent.
Embodiment
Basic thought of the present invention is, after the AS of execution B2BUA behavior receives initial session request, after receiving the initial request of dialogue, revise the initiator user's of described initial request initial filter criteria, when S-CSCF receives the subsequent request message that meets amended initial filter criteria, trigger the AS of described execution B2BUA behavior.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 4 is the flow chart that the present invention is based on the meeting method for building up application example one of back-to-back user agent, and as shown in Figure 4, this example specifically may further comprise the steps based on the meeting method for building up of back-to-back user agent:
It is identical with step 301～step 303 among Fig. 3 that step 401～step 403, session are set up process, and promptly UEA has sent to call for to S-CSCF through P-CSCF and asked, and S-CSCF receives this and calls for and be transmitted to B2BUA-1 (carrying out the AS of B2BUA behavior) after asking.Rising wherein carried dialogue 1 sign in calling for and asking.
Step 404, B2BUA-1 receive sent call for ask after, initiate modification to HSS to initial filter criteria (iFC, initial Filter Criteria).
Step 405, HSS makes amendment to the iFC of self, after HSS has revised iFC, with the iFC rule notice S-CSCF of up-to-date modification.Amended initial filter criteria is: for described initiator user's S-CSCF, in receiving subsequent request message, carry alternative parameter or replace header field, and the value of alternative parameter or replacement header field is the dialogue of being set up, recipient user in the described subsequent request message by the recipient user of foundation dialogue, at described subsequent request message trigger B2BUA-1.
Among the present invention,, amended iFC is positioned over the head of the queue that iFC triggers sequence for guaranteeing that amended initial filter criteria is carried out at first.
Step 406, S-CSCF receives the corresponding iFC of modification in notice back.Amended iFC is identical with amended iFC among the HSS.S-CSCF sends modification iFC to HSS and finishes response.
Step 407, HSS sends to S-CSCF and confirms response.
Among the present invention, B2BUA-1 after receiving the initial request of dialogue to S-CSCF at described initial request before the recipient user of the described initial request request of making a call, iFC among the HSS is made amendment, and make iFC among the S-CSCF revise to finish to get final product.
Step 408～step 414, identical with step 303 to step 308, be used to set up the dialogue 1 between UE-A and the UE-B;
The dialog information that this moment, UE-A upward set up is dialogue 1, and the dialog information of the last foundation of UE-B is dialogue A;
Step 415～step 420, these steps are the process that meeting is set up, and be identical with step 309～step 318 among Fig. 3, and this moment, UE-A finished the foundation of convention business, and request meeting AS adds UE-B in the convention business to;
Step 421, step 422, UE-A sends (REFER) request of shifting by P-CSCF to S-CSCF; Carry alternative parameter or replace header field in the above-mentioned REFER request.
Step 423, S-CSCF sends the REFER request to meeting AS; Carry alternative parameter in the REFER request or replace header field;
Step 424, meeting AS sends call request to S-CSCF, carries alternative parameter in the call request or replaces header field;
Step 425～step 426, after S-CSCF receives the call request of meeting AS transmission, mate according to new iFC rule, owing to contain the Replaces header field in this call request, and the callee that should call out is UE-B, then S-CSCF gives B2BUA-1 according to new iFC rule with this call request triggers;
Step 427 after B2BUA-1 is received this call request, is searched talking with 1 information, and is found its corresponding relation;
Step 428, B2BUA-1 is pressed the way of B2BUA, transmits this call request and gives S-CSCF, and the value of replaces header field is revised as dialogue A;
Step 429, S-CSCF sends to called subscriber UE-B with the call request that forwards;
Step 430, this moment, UE-B can find dialogue A in self, and replaced dialogue A with new calling;
Step 431～step 433, UE-B sends reception 200OK to meeting AS and replys;
Step 434～step 436, UE-B sends ending request to UE-A, end dialog A, wherein B2BUA-1 can convert end dialog A to end dialog 1 and send to UE-A; UE-A returns 200OK.
Fig. 5 is the flow chart that the present invention is based on the meeting method for building up application example two of back-to-back user agent, and as shown in Figure 5, this example specifically may further comprise the steps based on the meeting method for building up of back-to-back user agent:
Step 501 is to step 522, and is identical to step 422 with step 401 shown in Figure 4.
Step 523, S-CSCF mates according to new iFC rule after receiving the REFER request, owing to contain the Replaces header field in this REFER request, and the callee that should call out is UE-B, and then S-CSCF triggers this REFER request to B2BUA-1 according to new iFC rule;
Step 525, B2BUA-1 is pressed the way of B2BUA, transmits this REFER and asks to S-CSCF, and the value of replaces header field is revised as dialogue A;
Step 526, S-CSCF sends the REFER request to meeting AS;
Step 527, meeting AS sends call request to S-CSCF;
Step 528, S-CSCF sends call request to called subscriber UE-B, wherein carries dialogue A sign.
Step 529 is to step 535, and is identical to step 436 with step 430.
Fig. 4 and Fig. 5 are to be the explanation that example is carried out with the REFER request message, it will be appreciated by those skilled in the art that above-mentioned REFER request message also can replace with the INVITE request message, and the present invention no longer provides the process chart of INVITE request message.INVITE request message among the present invention or REFER request message can be initiator user or described recipient's Client-initiated request message.
System is set up in meeting based on back-to-back user agent of the present invention, is applied among the IMS, includes AS, HSS and S-CSCF etc.; Fig. 6 is the composition structural representation that system is set up in the meeting that the present invention is based on back-to-back user agent, and as shown in Figure 6, the meeting that the present invention is based on back-to-back user agent is set up system and also comprised and revise unit 60 and trigger element 61; Wherein,
Revise unit 60, be arranged at, be used for after receiving the initial request of dialogue, revising the initiator user's of described initial request initial filter criteria as among the AS and S-CSCF that carry out the B2BUA behavior;
Trigger element 61 is arranged among the described S-CSCF, is used for triggering the AS of described execution B2BUA behavior when receiving the subsequent request message that meets amended initial filter criteria.
The AS of above-mentioned execution B2BUA behavior and described S-CSCF are described initiator user's AS and S-CSCF;
The AS of described execution B2BUA behavior also is used for the modification to the HSS initial filter criteria;
Described HSS further notifies described initiator user's S-CSCF to revise described initiator user's initial filter criteria after revising initial filter criteria;
Described initiator user's S-CSCF also is used to revise described initiator user's initial filter criteria, sets up dialogue for described initiator user and recipient user afterwards.
Above-mentioned amended initial filter criteria is:
S-CSCF for described initiator user, in receiving subsequent request message, carry alternative parameter or replace header field, and the value of alternative parameter or replacement header field is the dialogue of being set up, recipient user in the described subsequent request message by the recipient user of foundation dialogue, then at the AS of the described execution B2BUA of described subsequent request message trigger behavior.
The subsequent request message that described subsequent request message is described initiator user or described recipient user; Described subsequent request message is INVITE request message or REFER request message.
As shown in Figure 6, the meeting that the present invention is based on back-to-back user agent is set up system and is also comprised placement unit 62, is used for amended initial filter criteria is positioned over the head of the queue that initial filter criteria triggers sequence.
The AS of described execution B2BUA behavior and described S-CSCF are described initiator user's AS and S-CSCF;
The modification that above-mentioned modification unit 60 also is used for the HSS initial filter criteria;
Described HSS further notifies described initiator user's S-CSCF to revise described initiator user's initial filter criteria after revising initial filter criteria.
The subsequent request message that above-mentioned subsequent request message is described initiator user or described recipient user; Described subsequent request message is INVITE request message or REFER request message.
Above-mentioned initiator user's S-CSCF is after receiving described subsequent request message, further judge when described subsequent request message meets described amended initial filter criteria, described subsequent request message is sent to the AS of described execution B2BUA behavior, and the AS that triggers the behavior of described execution B2BUA is to the alternative parameter in the described subsequent request message or replace header field and replace;
The AS of described execution B2BUA behavior also is used for the described subsequent request message after replacing is sent to described initiator user's S-CSCF; Described initiator user's S-CSCF initiates to the described recipient user request of making a call at the described subsequent request message after replacing.
Above-mentioned initiator user's S-CSCF further sends described subsequent request message to meeting AS after receiving described subsequent request message, meeting AS also is used for sending call request to described initiator user's S-CSCF; Carry the alternative parameter of described subsequent request message in the described call request or replace header field;
Described initiator user's S-CSCF further judges when the call request from meeting AS that is received meets described amended initial filter criteria, the call request that is received is sent to described B2BUA, and the AS that triggers the behavior of described execution B2BUA replaces alternative parameter in the described subsequent request message or replacement header field;
The AS of described execution B2BUA behavior also is used for the described subsequent request message after replacing is sent to described initiator user's S-CSCF; Described initiator user's S-CSCF initiates to the described recipient user request of making a call at the described subsequent request message after replacing.
Those skilled in the art are to be understood that, it is for realizing that aforesaid meeting method for building up based on back-to-back user agent designs that system is set up in the present invention's meeting based on back-to-back user agent shown in Figure 6, and the realization function of above-mentioned each processing unit can be with reference to the associated description of preceding method and understood.The function of the each processing unit among the figure can realize by the program that runs on the processor, also can realize by concrete logical circuit.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (14)
1. meeting method for building up based on back-to-back user agent is characterized in that described method comprises:
Receive after the initial request of dialogue as the application server AS of carrying out the behavior of back-to-back user agent B2BUA, revise the initiator user's of described initial request initial filter criteria;
When service call session control function entity S-CSCF receives the subsequent request message that meets amended initial filter criteria, trigger the AS of described execution B2BUA behavior.
2. method according to claim 1 is characterized in that, amended initial filter criteria is:
S-CSCF for described initiator user, in receiving subsequent request message, carry alternative parameter or replace header field, and the value of alternative parameter or replacement header field is the dialogue of being set up, recipient user in the described subsequent request message by the recipient user of foundation dialogue, then at the AS of the described execution B2BUA of described subsequent request message trigger behavior.
3. method according to claim 1 and 2 is characterized in that, the AS of described execution B2BUA behavior and described S-CSCF are described initiator user's AS and S-CSCF;
The initial filter criteria of revising described initiator user is specially: by the AS of the described execution B2BUA behavior modification to initial filter criteria among the home subscriber server HSS;
Described method also comprises: HSS notifies described initiator user's S-CSCF to revise described initiator user's initial filter criteria after revising initial filter criteria.
4. method according to claim 3 is characterized in that, the subsequent request message that described subsequent request message is described initiator user or described recipient user; Described subsequent request message is for inviting the INVITE request message or shifting the REFER request message.
5. method according to claim 4 is characterized in that, described method also comprises:
Amended initial filter criteria is positioned over the head of the queue that initial filter criteria triggers sequence.
6. method according to claim 5 is characterized in that, described AS at the behavior of the described execution B2BUA of described subsequent request message trigger, for:
After described initiator user's S-CSCF receives described subsequent request message, judge when described subsequent request message meets described amended initial filter criteria, described subsequent request message is sent to the AS of described execution B2BUA behavior, and the AS that triggers the behavior of described execution B2BUA is to the alternative parameter in the described subsequent request message or replace header field and replace;
Described method also comprises:
Described subsequent request message after the AS of described execution B2BUA behavior will replace sends to described initiator user's S-CSCF; Described initiator user's S-CSCF initiates to the described recipient user request of making a call at the described subsequent request message after replacing.
7. method according to claim 5 is characterized in that, described AS at the behavior of the described execution B2BUA of described subsequent request message trigger, for:
After described initiator user's S-CSCF receives described subsequent request message, send described subsequent request message to meeting AS, meeting AS sends call request to described initiator user's S-CSCF; Carry the alternative parameter of described subsequent request message in the described call request or replace header field;
Described initiator user's S-CSCF judges when the call request from meeting AS that is received meets described amended initial filter criteria, the call request that is received is sent to described B2BUA, and the AS that triggers the behavior of described execution B2BUA replaces alternative parameter in the described subsequent request message or replacement header field;
Described method also comprises:
Described subsequent request message after the AS of described execution B2BUA behavior will replace sends to described initiator user's S-CSCF; Described initiator user's S-CSCF initiates to the described recipient user request of making a call at the described subsequent request message after replacing.
8. system is set up in the meeting based on back-to-back user agent, includes AS, HSS and S-CSCF; It is characterized in that described system comprises revises unit and trigger element; Wherein,
Revise the unit, be arranged at, be used for after receiving the initial request of dialogue, revising the initiator user's of described initial request initial filter criteria as among the AS and S-CSCF that carry out the B2BUA behavior;
Trigger element is arranged among the S-CSCF, is used for triggering the AS of described execution B2BUA behavior when receiving the subsequent request message that meets amended initial filter criteria.
9. system according to claim 8 is characterized in that, amended initial filter criteria is:
S-CSCF for described initiator user, in receiving subsequent request message, carry alternative parameter or replace header field, and the value of alternative parameter or replacement header field is the dialogue of being set up, recipient user in the described subsequent request message by the recipient user of foundation dialogue, then at the AS of the described execution B2BUA of described subsequent request message trigger behavior.
10. according to Claim 8 or 9 described systems, it is characterized in that the AS of described execution B2BUA behavior and described S-CSCF are described initiator user's AS and S-CSCF;
Described modification unit also is used for the modification to the HSS initial filter criteria;
Described HSS further notifies described initiator user's S-CSCF to revise described initiator user's initial filter criteria after revising initial filter criteria.
11. system according to claim 10 is characterized in that, the subsequent request message that described subsequent request message is described initiator user or described recipient user; Described subsequent request message is INVITE request message or REFER request message.
12. system according to claim 11 is characterized in that, described system also comprises:
Placement unit is used for amended initial filter criteria is positioned over the head of the queue that initial filter criteria triggers sequence.
13. system according to claim 12, it is characterized in that, described initiator user's S-CSCF is after receiving described subsequent request message, further judge when described subsequent request message meets described amended initial filter criteria, described subsequent request message is sent to the AS of described execution B2BUA behavior, and the AS that triggers the behavior of described execution B2BUA is to the alternative parameter in the described subsequent request message or replace header field and replace;
The AS of described execution B2BUA behavior also is used for the described subsequent request message after replacing is sent to described initiator user's S-CSCF; Described initiator user's S-CSCF initiates to the described recipient user request of making a call at the described subsequent request message after replacing.
14. system according to claim 12, it is characterized in that, described initiator user's S-CSCF further sends described subsequent request message to meeting AS after receiving described subsequent request message, meeting AS also is used for sending call request to described initiator user's S-CSCF; Carry the alternative parameter of described subsequent request message in the described call request or replace header field;
Described initiator user's S-CSCF further judges when the call request from non-AS as B2BUA that is received meets described amended initial filter criteria, the call request that is received is sent to described B2BUA, and the AS that triggers the behavior of described execution B2BUA replaces alternative parameter in the described subsequent request message or replacement header field;
The AS of described execution B2BUA behavior also is used for the described subsequent request message after replacing is sent to described initiator user's S-CSCF; Described initiator user's S-CSCF initiates to the described recipient user request of making a call at the described subsequent request message after replacing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010212130.3A CN102291379B (en) | 2010-06-18 | 2010-06-18 | Meeting method for building up based on back-to-back user agent and system |
| PCT/CN2011/075828 WO2011157218A1 (en) | 2010-06-18 | 2011-06-16 | Conference establishment method and system based on back to back user agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010212130.3A CN102291379B (en) | 2010-06-18 | 2010-06-18 | Meeting method for building up based on back-to-back user agent and system |
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| CN102291379A true CN102291379A (en) | 2011-12-21 |
| CN102291379B CN102291379B (en) | 2016-08-03 |
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| CN101051993A (en) * | 2006-04-04 | 2007-10-10 | 华为技术有限公司 | Method for substituting conversation mark conversation replacing method using said conversation mark substitution |
| US20080043720A1 (en) * | 2006-08-02 | 2008-02-21 | Siemens Communications, Inc. | Telecommunications system and method of session initiation protocol (SIP) based communications between endpoints |
| CN101166105A (en) * | 2007-08-28 | 2008-04-23 | 中兴通讯股份有限公司 | Online user invitation method for conference service |
| CN101404822A (en) * | 2007-09-30 | 2009-04-08 | 华为技术有限公司 | Conversation transfer method, system and equipment |
| CN102006272A (en) * | 2010-04-30 | 2011-04-06 | 中兴通讯股份有限公司 | Method and system of application server (AS) for replacing Replace parameter |
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| CN101051993A (en) * | 2006-04-04 | 2007-10-10 | 华为技术有限公司 | Method for substituting conversation mark conversation replacing method using said conversation mark substitution |
| US20080043720A1 (en) * | 2006-08-02 | 2008-02-21 | Siemens Communications, Inc. | Telecommunications system and method of session initiation protocol (SIP) based communications between endpoints |
| CN101166105A (en) * | 2007-08-28 | 2008-04-23 | 中兴通讯股份有限公司 | Online user invitation method for conference service |
| CN101404822A (en) * | 2007-09-30 | 2009-04-08 | 华为技术有限公司 | Conversation transfer method, system and equipment |
| CN102006272A (en) * | 2010-04-30 | 2011-04-06 | 中兴通讯股份有限公司 | Method and system of application server (AS) for replacing Replace parameter |
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| Publication number | Publication date |
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| CN102291379B (en) | 2016-08-03 |
| WO2011157218A1 (en) | 2011-12-22 |
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