CN101252706B - Method and system for forwarding intelligent call - Google Patents
Method and system for forwarding intelligent call Download PDFInfo
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- CN101252706B CN101252706B CN2008100893631A CN200810089363A CN101252706B CN 101252706 B CN101252706 B CN 101252706B CN 2008100893631 A CN2008100893631 A CN 2008100893631A CN 200810089363 A CN200810089363 A CN 200810089363A CN 101252706 B CN101252706 B CN 101252706B
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Abstract
The invention discloses an intelligent call forwarding method, which comprises the steps: a PC client side setting an SIP MESSAGE message body; the PC client side sending an SIP MESSAGE message to an application server AS; the AS identifying the SIP MESSAGE message body of the SIP MESSAGE message, and determining applicable forwarding processing flow according to the identification result; executing the forwarding processing flow. The invention discloses an intelligent call forwarding system as well, which comprises a PC client side, a common terminal, an application server and a media server. By adopting the method and the system of the invention, appropriate call forwarding method can be selected to realize call forwarding according to the requirements of the users.
Description
Technical field
The present invention relates to the intelligent call technology, relate in particular to a kind of forwarding intelligent call method and system.
Background technology
IP multimedia system (IMS, IP Multimedia Subsystem) is a kind of architectural framework that is used to provide IP multimedia service, IMS adopts session initiation protocol (SIP) as the signaling of calling out control and professional control, various types of multimedia services of creating, manage and terminate.
Along with the development of next generation network (NGN), ETSI and ITU-T have adopted IMS in its NGN system.Because Session Initiation Protocol has certain flexibility on message transmission and treatment mechanism, the feasible supplementary service that can realize some VoIP with Session Initiation Protocol easily, such as the Call Forwarding under the various situations, therefore, many NGN and IMS provide basic Call Forwarding services.
At present, the Call Forwarding system of NGN and IMS, mostly only can be by commentariess on classics-blind commentaries on classics before directly, directly before commentariess on classics-ring change, change-reply before directly change or Call Forwarding flow processs such as the preceding commentaries on classics of inquiry handling process in a kind ofly realize Call Forwarding.And in the practical application, the user can make following classification to incoming call: general incoming call, more important incoming call, important incoming call etc. need different Call Forwarding flow processs for difference incoming call mode and match.Specifically, for ordinary calls, for saving time, change operation before only needing to carry out after, after the third side calls out the callee, can finish the conversation with the calling party, be suitable for directly before commentaries on classics-blind commentaries on classics handling process; For more important incoming call, the user then wishes to confirm access success, that is, after the third side calls out the callee, hear callee's ring-back tone after, finish the conversation with the calling party again, be suitable for directly before commentariess on classics-ring commentaries on classics handling process; For important incoming call, the user can wish to confirm calling party and callee's normal talking, after promptly the third side calls out the callee, confirm that the callee replys after, finish the conversation with the calling party again, change-reply the commentaries on classics handling process before being suitable for directly; And have a lot of work to do as the callee, before the user also wished before execution to change operation, whether the inquiry callee free or wish and calling party's conversation, if, change operation before then carrying out, be suitable for commentaries on classics handling process before the inquiry.This shows, what the user needed is the Call Forwarding system that can satisfy all kinds of incoming calls and different callees simultaneously, and only can be by commentariess on classics-blind commentaries on classics before directly, directly before commentariess on classics-ring change, change-reply before directly change or Call Forwarding flow processs such as the preceding commentaries on classics of inquiry handling process in a kind of Call Forwarding system that realizes Call Forwarding, can not satisfy the demand of user.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of forwarding intelligent call method and system, can select suitable Call Forwarding mode to realize Call Forwarding according to user's request.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of forwarding intelligent call method, this method may further comprise the steps:
Pc client is provided with SIP MESSAGE message body, and described SIP MESSAGE message body is the directly preceding request of changeing, or commentaries on classics request before the inquiry;
Pc client sends SIP MESSAGE message to application server AS;
AS discerns SIP MESSAGE message body of described SIP MESSAGE message, and determines current suitable preceding commentaries on classics handling process according to recognition result, carries out the determined preceding handling process of changeing afterwards;
Wherein, the SIP MESSAGE message body that AS discerns described SIP MESSAGE message is to change request before directly, still changes request before the inquiry, if SIP MESSAGE message body be to change request before directly, then current be suitable for directly before the commentaries on classics handling process; If SIP MESSAGE message body is changeed request for inquiry is preceding, change handling process before the then current suitable inquiry;
Wherein, change handling process before the described inquiry and may further comprise the steps: AS sends not call request message with Session Description Protocol (SDP) to ordinary terminal B, and ordinary terminal B replys the ring response message to AS, and AS transmission playback request arrives MS; MS replys the playback success response to AS, and puts ring-back tone to pc client; AS sends playback request to MS; MS replys playback success response message to AS, and changes stand by tone before putting for ordinary terminal A; Ordinary terminal B replys the response message of band SDP to AS, AS sends and stops playback request to MS, MS stops pc client being put ring-back tone, pc client and ordinary terminal B normal talking, after inquiry, ordinary terminal B agrees to answer the phone of ordinary terminal A, then AS sends and stops playback request to MS, MS stops ordinary terminal A is put the preceding stand by tone that changes, AS sends the medium update inquiry information to ordinary terminal B, ordinary terminal B responds medium and upgrades success response to AS, ordinary terminal A and ordinary terminal B normal talking; Otherwise, the conversation of declining ordinary terminal A.
Further, describedly change handling process before directly and comprise: commentariess on classics-blind commentaries on classics handling process directly, directly before commentariess on classics-ring commentaries on classics handling process or direct before change-reply the commentaries on classics handling process.
Further, whether send end call request message to application server AS according to pc client, and PC send to finish the time of call request, determine to carry out directly before commentariess on classics-blind commentaries on classics handling process or carry out directly before commentariess on classics-ring change handling process or direct before change-reply the commentaries on classics handling process and comprise:
After if pc client is received SIP MESSAGE message response, send and finish call request message to application server AS, then the AS answer finishes close-talking response message to pc client, carries out directly preceding commentaries on classics-blind commentaries on classics handling process;
After if pc client is received ring-back tone, send and finish call request message to application server AS, then the AS answer finishes close-talking response message to pc client, carries out directly preceding commentaries on classics-ring handling process;
Finish call request message to application server AS if pc client does not send, change-reply the commentaries on classics handling process before the execution directly.
The present invention also provides a kind of forwarding intelligent call system, and this system comprises: pc client, ordinary terminal, application server, media server; Wherein,
Pc client is connected to application server by core net, is used to be provided with SIP MESSAGE message body, and described SIP MESSAGE message body is the directly preceding request of changeing, or commentaries on classics request before the inquiry;
Ordinary terminal is connected to application server by core net;
Application server is used to discern SIP MESSAGE message body of SIP MESSAGE message, determines the preceding commentaries on classics handling process that is suitable for according to recognition result;
Media server is connected to application server, is used for to pc client, ordinary terminal playback;
Be equipped with the sip stack module on pc client, application server, the media server, the sip stack module sends described SIP MESSAGE message to application server by core net, and is used to realize the Signalling exchange and the media negotiation of Call Forwarding handling process;
Wherein, described application service implement body is used for, and the SIP MESSAGE message body of discerning described SIP MESSAGE message is that directly preceding the commentaries on classics asked, and still preceding commentaries on classics of inquiry asked, if SIP MESSAGE message body is the directly preceding request of changeing, the then current suitable directly preceding handling process of changeing; If SIP MESSAGE message body is changeed request for inquiry is preceding, change handling process before the then current suitable inquiry;
Change handling process before the inquiry that described application server AS, media server MS, pc client and ordinary terminal also are used to realize may further comprise the steps:
AS sends not call request message with SDP to ordinary terminal B, and ordinary terminal B replys the ring response message to AS, and AS transmission playback request arrives MS; MS replys the playback success response to AS, and puts ring-back tone to pc client; AS sends playback request to MS; MS replys playback success response message to AS, and changes stand by tone before putting for ordinary terminal A; Ordinary terminal B replys the response message of band SDP to AS, AS sends and stops playback request to MS, MS stops pc client being put ring-back tone, pc client and ordinary terminal B normal talking, after inquiry, ordinary terminal B agrees to answer the phone of ordinary terminal A, then AS sends and stops playback request to MS, MS stops ordinary terminal A is put the preceding stand by tone that changes, AS sends the medium update inquiry information to ordinary terminal B, ordinary terminal B responds medium and upgrades success response to AS, ordinary terminal A and ordinary terminal B normal talking; Otherwise, the conversation of declining ordinary terminal A.
The method of forwarding intelligent call system and method provided by the present invention has following advantage and characteristics:
The user changes before pc client need be selected directly or the preceding handling process of changeing of inquiry, the preceding commentaries on classics request that pc client then will have user's selection sends to application server (AS), determine suitable preceding commentaries on classics handling process by AS, system provided by the invention carries out the determined preceding handling process of changeing, finish Call Forwarding, can satisfy the callee, when promptly ordinary terminal B has a lot of work to do, the demand of filtering incoming telegram; And before carrying out directly, change in the process of handling process, the user according to demand, select to finish the third side, promptly determine to finish the time of pc client conversation according to demand, commentariess on classics-blind commentaries on classics handling process before system carries out directly respectively afterwards, directly before commentariess on classics-ring commentaries on classics handling process or direct before change-reply the commentaries on classics handling process, so, can satisfy the demand that the user selects the Call Forwarding flow process corresponding with the current call mode.
Description of drawings
The realization flow figure of the method for a kind of forwarding intelligent call that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the directly preceding commentaries on classics-blind commentaries on classics process chart of the embodiment of the invention;
Fig. 3 is that process chart is changeed in the directly preceding commentaries on classics-ring of the embodiment of the invention;
Fig. 4 for the embodiment of the invention directly before change-reply the commentaries on classics process chart;
Fig. 5 is the preceding process chart that changes of the inquiry of the embodiment of the invention;
The structural representation of a kind of forwarding intelligent call system that Fig. 6 provides for the embodiment of the invention.
Embodiment
Basic thought of the present invention is: the user before the pc client demand is selected directly, change or inquiry before during the commentaries on classics handling process, pc client will have the directly preceding commentaries on classics request that the user selects, or the SIPMESSAGE message of changeing request before the inquiry sends to AS, AS identification SIP MESSAGE message body is the directly preceding request of changeing, still change request before the inquiry, and according to the definite preceding commentaries on classics handling process that is suitable for of recognition result, system carries out the described preceding handling process of changeing, can automatically perform the preceding commentaries on classics handling process that AS determines, finish Call Forwarding, can satisfy the callee, be ordinary terminal B when having a lot of work to do, the demand of filtering incoming telegram; And before carrying out directly, change in the process of handling process, the user according to demand, select to finish the third side, promptly determine to finish the time of pc client conversation according to demand, commentariess on classics-blind commentaries on classics handling process before system carries out directly respectively afterwards, directly before commentariess on classics-ring commentaries on classics handling process or direct before change-reply the commentaries on classics handling process, select suitable preceding commentaries on classics handling process to finish the demand of changeing before ordinary calls, more important incoming call, the important incoming call respectively to satisfy the user.
The realization flow of the method for a kind of forwarding intelligent call provided by the invention may further comprise the steps as shown in Figure 1:
Step 101:PC client is provided with SIP MESSAGE message body, and this SIP MESSAGE message body can be the directly preceding request of changeing, or commentaries on classics request before the inquiry.
Step 102: ordinary terminal A and pc client normal talking.
Step 103:PC client sends SIP MESSAGE message to application server AS;
Here, for described SIP MESSAGE message body: if the user changes handling process before selecting directly, then the SIP MESSAGE message body that comprises in the SIP MESSAGE message of Fa Songing is the directly preceding request of changeing, change handling process before the user selects to inquire, then the SIPMESSAGE message body that comprises in the SIP MESSAGE message of Fa Songing is to change request before the inquiry.
Step 104:AS discerns described SIP MESSAGE message body, replys SIP MESSAGE message response and gives pc client, and determine suitable preceding commentaries on classics handling process according to recognition result;
Be specially: AS identification SIP MESSAGE message body is direct preceding commentaries on classics request, still inquires preceding commentaries on classics request, asks if SIP MESSAGE message body is directly preceding commentaries on classics, then is suitable for directly preceding commentaries on classics handling process; If SIP MESSAGE message body is changeed request for inquiry is preceding, then be suitable for the preceding handling process of changeing of inquiry.
Step 105: carry out the determined preceding handling process of changeing.
The embodiment of the invention is when changeing handling process before directly in the described handling process of changeing before determined, whether send end call request message to application server AS according to pc client, and PC send to finish the time of call request, determine to carry out directly before commentariess on classics-blind commentaries on classics handling process or carry out directly before commentariess on classics-ring commentaries on classics handling process or direct before change-reply the commentaries on classics handling process:
After if pc client is received SIP MESSAGE message response, send and finish call request message to application server AS, then the AS answer finishes close-talking response message to pc client, carries out directly preceding commentaries on classics-blind commentaries on classics handling process;
After if pc client is received ring-back tone, send and finish call request message to application server AS, then the AS answer finishes close-talking response message to pc client, carries out directly preceding commentaries on classics-ring handling process;
Finish call request message to application server AS if pc client does not send, change-reply the commentaries on classics handling process before the execution directly.
The directly preceding commentaries on classics-blind commentaries on classics handling process of the embodiment of the invention may further comprise the steps as shown in Figure 2:
Step 201,202:AS send not call request message with SDP to ordinary terminal B; Ordinary terminal B replys the ring response message to AS, expression ordinary terminal B ring; Described ordinary terminal can be landline telephone, mobile phone, Personal Handyphone System etc., when ordinary terminal is the callee, is expressed as ordinary terminal B.
Step 203,204:AS send call request message with a SDP to media server (MS); MS replys access success response message with the 2nd SDP to AS;
Here, medium interactive information and the RTP link information of the corresponding ordinary terminal A of a described SDP; Medium interactive information and the RTP link information of the corresponding MS of described the 2nd SDP; Described medium interactive information can be a media formats, and described RTP link information can be IP address and port numbers; When described ordinary terminal is the calling party, be expressed as ordinary terminal A.
The medium update inquiry information that step 205,206:AS send with the 2nd SDP arrives ordinary terminal A; Ordinary terminal A replys medium and upgrades successful response message to AS, and presentation medium is upgraded successfully.
Step 207,208:AS send playback request to MS; MS replys playback success response message to AS, and changes stand by tone before putting for ordinary terminal A.
Step 209: the response message that normal client end B replys with Three S's DP arrives AS, and expression ordinary terminal B replys; Medium interactive information and the RTP link information of the corresponding ordinary terminal B of described Three S's DP.
Step 210,211:AS send and stop playback request to MS; MS replys and stops playback success response message to AS, and stops ordinary terminal A is put the preceding stand by tone that changes.
The medium update inquiry information that step 212,213:AS send with Three S's DP arrives ordinary terminal A; Ordinary terminal A replys medium and upgrades successful response message to AS, and presentation medium is upgraded successfully.
The medium update inquiry information that step 214,215:AS send with a SDP arrives ordinary terminal B; Ordinary terminal B responds medium and upgrades success response to AS, ordinary terminal A and ordinary terminal B normal talking.
The directly preceding commentaries on classics-ring of the embodiment of the invention is changeed handling process as shown in Figure 3, may further comprise the steps:
Step 301,302:AS send not call request message with SDP to ordinary terminal B; Ordinary terminal B replys the ring response message to AS, expression ordinary terminal B ring.
Step 303,304:AS send call request message with the 4th SDP to media server MS; MS replys access success response message with the 2nd SDP to AS; The medium interactive information and the RTP link information of the corresponding pc client of described the 4th SDP.
The medium update inquiry information that step 305,306:AS send with the 2nd SDP arrives pc client; Pc client is replied medium and is upgraded successful response message to AS, and presentation medium is upgraded successfully.
Step 307,308:AS send playback request to MS; MS replys the playback success response to AS, and puts ring-back tone to pc client.
Step 409:PC client sends and finishes call request to AS; Step 410:AS replys and finishes close-talking response message to pc client.
Step 311,312:AS send and stop playback request to MS; MS replys and stops playback success response message to AS, and stops pc client being put ring-back tone.
Step 313,314:AS send call request message with a SDP to media server MS; MS replys access success response message with the 2nd SDP to AS.
The medium update inquiry information that step 315,316:AS send with the 2nd SDP arrives ordinary terminal A; Ordinary terminal A replys medium and upgrades successful response message to AS.
Step 317,318:AS send playback request to MS; MS replys playback success response message to AS, and changes stand by tone before putting for ordinary terminal A.
Step 319: the response message that ordinary terminal B replys with Three S's DP arrives AS.
Step 320,321:AS send and stop playback request to MS; MS replys and stops playback success response message to AS, and stops ordinary terminal A is put the preceding stand by tone that changes.
The medium update inquiry information that step 322,323:AS send with Three S's DP arrives ordinary terminal A; Ordinary terminal A replys medium and upgrades successful response message to AS.
The medium update inquiry information that step 324,325:AS send with a SDP arrives ordinary terminal B; Ordinary terminal B responds medium and upgrades success response to AS, ordinary terminal A and ordinary terminal B normal talking.
The embodiment of the invention directly before change-reply and change handling process as shown in Figure 4, may further comprise the steps:
Step 401,402:AS send not call request message with SDP to ordinary terminal B; Ordinary terminal B replys the ring response message to AS, expression ordinary terminal B ring.
Step 403,404:AS send call request message with the 4th SDP to media server MS; MS replys access success response message with the 2nd SDP to AS.
The medium update inquiry information that step 405,406:AS send with the 2nd SDP arrives pc client; Pc client is replied medium and is upgraded successful response message to AS, and presentation medium is upgraded successfully.
Step 407,408:AS send playback request to MS; MS replys the playback success response to AS, and puts ring-back tone to pc client.
Step 409,410:AS send call request message with a SDP to media server MS; MS replys access success response message with the 2nd SDP to AS.
The medium update inquiry information that step 411,412:AS send with the 2nd SDP arrives ordinary terminal A; Ordinary terminal A replys medium and upgrades successful response message to AS.
Step 413,414:AS send playback request to MS; MS replys playback success response message to AS, and changes stand by tone before putting for ordinary terminal A.
Step 415: the response message that ordinary terminal B replys with Three S's DP arrives AS.
Step 416,417:AS send and stop playback request to MS; MS replys and stops playback success response message to AS, and stops pc client being put ring-back tone.
Step 418,419:AS send and finish communicating request information to pc client; Pc client is replied and is finished close-talking response to AS.
Step 420,421:AS send and stop playback request to MS; MS replys and stops playback success response message to AS, and stops ordinary terminal A is put the preceding stand by tone that changes.
The medium update inquiry information that step 422,423:AS send with Three S's DP arrives ordinary terminal A; Ordinary terminal A replys medium and upgrades successful response message to AS.
The medium update inquiry information that step 424,425:AS send with a SDP arrives ordinary terminal B; I22, ordinary terminal B respond medium and upgrade success response to AS, ordinary terminal A and ordinary terminal B normal talking.
Change handling process as shown in Figure 5 before the inquiry of the embodiment of the invention, may further comprise the steps:
Step 501,502:AS send not call request message with SDP to ordinary terminal B; Ordinary terminal B replys the ring response message to AS.
Step 503,504:AS send call request message with the 4th SDP to media server MS; B32, MS reply access success response message with the 2nd SDP to AS.
The medium update inquiry information that step 505,506:AS send with the 2nd SDP arrives pc client; Pc client is replied medium and is upgraded successful response message to AS.
Step 507,508:AS send playback request to MS; MS replys the playback success response to AS, and puts ring-back tone to pc client.
Step 509,510:AS send call request message with a SDP to media server MS; MS replys access success response message with the 2nd SDP to AS.
The medium update inquiry information that step 511,512:AS send with the 2nd SDP arrives ordinary terminal A; Ordinary terminal A replys medium and upgrades successful response message to AS.
Step 513,514:AS send playback request to MS; MS replys playback success response message to AS, and changes stand by tone before putting for ordinary terminal A.
Step 515: the response message that ordinary terminal B replys with Three S's DP arrives AS.
The medium update inquiry information that step 516,517:AS send with Three S's DP arrives pc client; Pc client is replied medium and is upgraded response message to AS.
Step 518,519:AS send and stop playback request to MS; MS replys and stops playback success response message to AS, and stops pc client being put ring-back tone.
Step 520,521:AS send the medium update inquiry information that has the 4th SDP and arrive ordinary terminal B; Ordinary terminal B replys medium and upgrades response message to AS.
Step 522:PC client and ordinary terminal B normal talking, after inquiry, ordinary terminal B agrees to answer the phone of ordinary terminal A, and then execution in step 623; Otherwise, decline the conversation of ordinary terminal A after, finish this flow process.
The SIPMESSAGE message that Session Initiation Protocol stack on step 523, the 524:PC client changes before AS sends agreement; Before replying and agree, AS changes response message to pc client.
Step 525,526:AS send and finish communicating request information to pc client; Pc client is replied and is finished close-talking response message to AS.
Step 527,528:AS send and stop playback request to MS; MS replys and stops playback success response message to AS, and stops ordinary terminal A is put the preceding stand by tone that changes.
The medium update inquiry information that step 529,530:AS send with Three S's DP arrives ordinary terminal A; Ordinary terminal A replys medium and upgrades successful response message to AS.
The medium update inquiry information that step 531,532:AS send with a SDP arrives ordinary terminal B; Ordinary terminal B responds medium and upgrades success response to AS, ordinary terminal A and ordinary terminal B normal talking.
Structure such as Fig. 6 of a kind of forwarding intelligent call provided by the invention system, this system comprises: pc client 601, ordinary terminal 6021, ordinary terminal 6022, application server 603, media server 604, wherein,
Ordinary terminal 6021, ordinary terminal 6022 all are connected to application server 603 by core net 605, and in the practical application, native system can comprise a plurality of ordinary terminals, and described ordinary terminal can be landline telephone, mobile phone, Personal Handyphone System etc.;
Be equipped with sip stack module 606 in pc client 601, application server 603, the media server 604, sip stack module 606 is used for sending described SIP MESSAGE message to application server by core net, and is used to realize the Signalling exchange and the media negotiation of Call Forwarding handling process.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (4)
1. a forwarding intelligent call method is characterized in that, this method may further comprise the steps:
Pc client is provided with SIP MESSAGE message body, and described SIP MESSAGE message body is the directly preceding request of changeing, or commentaries on classics request before the inquiry;
Pc client sends SIPMESSAGE message to application server AS;
AS discerns SIP MESSAGE message body of described SIP MESSAGE message, and determines current suitable preceding commentaries on classics handling process according to recognition result, carries out the determined preceding handling process of changeing afterwards;
Wherein, the SIP MESSAGE message body that AS discerns described SIP MESSAGE message is to change request before directly, still changes request before the inquiry, if SIP MESSAGE message body be to change request before directly, then current be suitable for directly before the commentaries on classics handling process; If SIP MESSAGE message body is changeed request for inquiry is preceding, change handling process before the then current suitable inquiry;
Wherein, change handling process before the described inquiry and may further comprise the steps: AS sends not call request message with Session Description Protocol (SDP) to ordinary terminal B, and ordinary terminal B replys the ring response message to AS, and AS transmission playback request arrives media server MS; MS replys the playback success response to AS, and puts ring-back tone to pc client; AS sends playback request to MS; MS replys playback success response message to AS, and changes stand by tone before putting for ordinary terminal A; Ordinary terminal B replys the response message of band SDP to AS, AS sends and stops playback request to MS, MS stops pc client being put ring-back tone, pc client and ordinary terminal B normal talking, after inquiry, ordinary terminal B agrees to answer the phone of ordinary terminal A, then AS sends and stops playback request to MS, MS stops ordinary terminal A is put the preceding stand by tone that changes, AS sends the medium update inquiry information to ordinary terminal B, ordinary terminal B responds medium and upgrades success response to AS, ordinary terminal A and ordinary terminal B normal talking; Otherwise, the conversation of declining ordinary terminal A.
2. method according to claim 1 is characterized in that, describedly changes handling process before directly and comprises: commentariess on classics-blind commentaries on classics handling process directly, directly before commentariess on classics-ring commentaries on classics handling process or direct before change-reply the commentaries on classics handling process.
3. method according to claim 2, it is characterized in that, whether send end call request message to application server AS according to pc client, and PC send to finish the time of call request, determine to carry out directly before commentariess on classics-blind commentaries on classics handling process or carry out directly before commentariess on classics-ring change handling process or direct before change-reply the commentaries on classics handling process and comprise:
After if pc client is received SIP MESSAGE message response, send and finish call request message to application server AS, then the AS answer finishes close-talking response message to pc client, carries out directly preceding commentaries on classics-blind commentaries on classics handling process;
After if pc client is received ring-back tone, send and finish call request message to application server AS, then the AS answer finishes close-talking response message to pc client, carries out directly preceding commentaries on classics-ring handling process;
Finish call request message to application server AS if pc client does not send, change-reply the commentaries on classics handling process before the execution directly.
4. a forwarding intelligent call system is characterized in that, this system comprises: pc client, ordinary terminal, application server AS, media server MS; Wherein,
Pc client is connected to application server by core net, is used to be provided with SIP MESSAGE message body, and described SIP MESSAGE message body is the directly preceding request of changeing, or commentaries on classics request before the inquiry;
Ordinary terminal is connected to application server by core net;
Application server is used to discern SIP MESSAGE message body of SIP MESSAGE message, determines the preceding commentaries on classics handling process that is suitable for according to recognition result;
Media server is connected to application server, is used for to pc client, ordinary terminal playback;
Be equipped with the sip stack module on pc client, application server, the media server, the sip stack module sends described SIP MESSAGE message to application server by core net, and is used to realize the Signalling exchange and the media negotiation of Call Forwarding handling process;
Wherein, described application service implement body is used for, and the SIPMESSAGE message body of discerning described SIP MESSAGE message is that directly preceding the commentaries on classics asked, and still preceding commentaries on classics of inquiry asked, if SIP MESSAGE message body is the directly preceding request of changeing, the then current suitable directly preceding handling process of changeing; If SIP MESSAGE message body is changeed request for inquiry is preceding, change handling process before the then current suitable inquiry;
Change handling process before the inquiry that described application server AS, media server MS, pc client and ordinary terminal also are used to realize may further comprise the steps:
AS sends not call request message with SDP to ordinary terminal B, and ordinary terminal B replys the ring response message to AS, and AS transmission playback request arrives MS; MS replys the playback success response to AS, and puts ring-back tone to pc client; AS sends playback request to MS; MS replys playback success response message to AS, and changes stand by tone before putting for ordinary terminal A; Ordinary terminal B replys the response message of band SDP to AS, AS sends and stops playback request to MS, MS stops pc client being put ring-back tone, pc client and ordinary terminal B normal talking, after inquiry, ordinary terminal B agrees to answer the phone of ordinary terminal A, then AS sends and stops playback request to MS, MS stops ordinary terminal A is put the preceding stand by tone that changes, AS sends the medium update inquiry information to ordinary terminal B, ordinary terminal B responds medium and upgrades success response to AS, ordinary terminal A and ordinary terminal B normal talking; Otherwise, the conversation of declining ordinary terminal A.
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| CN2008100893631A CN101252706B (en) | 2008-04-15 | 2008-04-15 | Method and system for forwarding intelligent call |
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| CN107786953B (en) * | 2016-08-29 | 2020-02-18 | 中国移动通信有限公司研究院 | VoLTE encryption call processing method, application server and terminal |
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| CN1625193A (en) * | 2003-12-04 | 2005-06-08 | 华为技术有限公司 | Method of realizing switching calling current of mobile terminal and its radio communication system |
| CN101014190A (en) * | 2007-02-02 | 2007-08-08 | 华为技术有限公司 | Call forwarding method, system and apparatus |
| CN101072261A (en) * | 2007-07-06 | 2007-11-14 | 华为技术有限公司 | Method, device and system for realizing call transfer |
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2008
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1625193A (en) * | 2003-12-04 | 2005-06-08 | 华为技术有限公司 | Method of realizing switching calling current of mobile terminal and its radio communication system |
| CN101014190A (en) * | 2007-02-02 | 2007-08-08 | 华为技术有限公司 | Call forwarding method, system and apparatus |
| CN101072261A (en) * | 2007-07-06 | 2007-11-14 | 华为技术有限公司 | Method, device and system for realizing call transfer |
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| CN101252706A (en) | 2008-08-27 |
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