CN101588562A - Multimedia coloring ring back tone realizing method based on call-independent control protocol bearing and system thereof - Google Patents

Multimedia coloring ring back tone realizing method based on call-independent control protocol bearing and system thereof Download PDF

Info

Publication number
CN101588562A
CN101588562A CNA200910085900XA CN200910085900A CN101588562A CN 101588562 A CN101588562 A CN 101588562A CN A200910085900X A CNA200910085900X A CN A200910085900XA CN 200910085900 A CN200910085900 A CN 200910085900A CN 101588562 A CN101588562 A CN 101588562A
Authority
CN
China
Prior art keywords
media
multimedia
back tone
ring back
called
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA200910085900XA
Other languages
Chinese (zh)
Other versions
CN101588562B (en
Inventor
郭斌
韩银俊
罗会平
刘坤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN200910085900XA priority Critical patent/CN101588562B/en
Publication of CN101588562A publication Critical patent/CN101588562A/en
Application granted granted Critical
Publication of CN101588562B publication Critical patent/CN101588562B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The present invention discloses a multimedia coloring ring back tone realizing method based on call-independent control protocol bearing and a system thereof. The method and the system of the invention are used for settling the technical problems of difficult updating, complicated protocol, etc. of prior method for realizing the multimedia coloring ring back tone to the mobile switching center. According to the invention, the call-independent control protocol bearing is adopted between the mobile switching center and a media server for realizing the establishment of the media channel among the calling party, the called party and the media server. After the multimedia coloring ring back tone is played, the video calling between the calling party and the called party is realized through the conference function of the media server. As the mobile switching center does not require big upgrading and reconstruction according to the invention, the quick disposition and in-advance generalization of the multimedia coloring ring back tone can be realized.

Description

Multimedia color ring back tone implementation method and system based on call-independent control protocol bearing
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of method and system that realize Multimedia Ring Back Tone service with the call control protocol of bearer independent of in the mobile core network environment, using.
Background technology
Multimedia color ring back tone is a service application newborn in a kind of 3G network, the user of customizing multimedia Ring Back Tone service can set one section video, when being called out with video mode by other users, in ring, predefined video can be played back on calling subscriber's terminal, strengthen the rich and interesting of user experience.
In the existing mobile core network network configuration, (the MSC of mobile switching centre, Mobile SwitchingCenter) will be from radio network controller (RNC, Radio Network Controller) calling goes to the application server (AS of Multimedia Ring Back Tone service, Application Server), realize Multimedia Ring Back Tone service.Described MSC comprise again Mobile Switching Center Server (MSC Server) and media gateway (MGW, MediaGateway).Under the control of multimedia color ring back tone application server, during the play multimedia CRBT, send video flowing to media gateway, and pass through the forwarding of each network element by media server (MS, Media Server), video is play on user terminal the most at last.
In existing technology, generally do two exhaling and realize CRBT by MSC, promptly call out the called subscriber on the one hand, call out the multimedia color ring back tone application server on the other hand, make the calling and called conversation after playing CRBT.Make it support that the two scheme costs of exhaling of multimedia color ring back tone are very big but the MSC on the existing network is carried out upgrading, and be difficult for sometimes on the commercial level promoting.
Summary of the invention
In view of this, it is a kind of based on call-independent control protocol bearing (BICC that main purpose of the present invention is to provide, Bearer Independent Call Control) multimedia color ring back tone implementation method is used to solve the existing method of Multimedia Ring Back Tone service that realizes to technical problems such as MSC upgrading difficulty, agreement complexity.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of multimedia color ring back tone implementation method based on call-independent control protocol bearing comprises:
Set up media channel with media server respectively by multimedia color ring back tone application server coordination calling mobile exchanging center and called mobile switching centre, and to caller play multimedia CRBT;
Create multimedia conferencing by multimedia color ring back tone application server indication media server, and caller and called joining in the described multimedia conferencing, thereby the conversation between the realization calling and called.
Further, adopt bearer independent call control Bearer Independent Call Control Protocol mutual between described calling mobile exchanging center and called mobile switching centre and the multimedia color ring back tone application server, adopt Session initiation protocol SIP mutual between described multimedia color ring back tone application server and the media server.
Further, behind the media channel of setting up between called mobile switching centre and the media server, indicate the multimedia color ring back tone application server to caller play multimedia CRBT by called mobile switching centre, receive the media channel of setting up after the indication of described play multimedia CRBT between calling mobile exchanging center and the media server at the multimedia color ring back tone application server, set up at the media channel between calling mobile exchanging center and the media server and begin caller play multimedia CRBT by multimedia color ring back tone application server instructions media server after finishing.
Further, the step of setting up the media channel between called mobile switching centre and the media server is:
B1: the multimedia color ring back tone application server is called out media server, obtains the media description information of media server;
B2: the multimedia color ring back tone application server is called out called with the media description information of media server, and obtains called media description information;
B3: the multimedia color ring back tone application server is issued media server with called media description information, make called and media server between set up media channel.
Further, the step of setting up the media channel between calling mobile exchanging center and the media server is:
C1: the multimedia color ring back tone application server is called out described media server with the media description information of caller, and obtains the media description information of described media server;
C2: the multimedia color ring back tone application server passes to calling mobile exchanging center with the media description information of described media server, makes between caller and media server and sets up media channel.
Further, multimedia color ring back tone application server indication media server is created multimedia conferencing, and is caller and called adding meeting step:
D1: behind the called off-hook, multimedia color ring back tone application server indication media server is created multimedia conferencing, and with called adding meeting;
D2: multimedia color ring back tone application server indication media server stops caller play multimedia CRBT;
D3: multimedia color ring back tone application server indication media server adds the described multimedia conferencing of setting up among the step D1 with caller, and calling and called are conversed by described multimedia conferencing.
Another object of the present invention is to provide a kind of multimedia color ring back tone based on call-independent control protocol bearing to realize system, for achieving the above object, technical scheme of the present invention is achieved in that
A kind of multimedia color ring back tone based on call-independent control protocol bearing is realized system, comprising:
Media channel is set up and the polyphonic ringtone playing module, is used for setting up calling mobile exchanging center and called mobile switching centre respectively and media channel between the media server and play multimedia CRBT under the coordination of multimedia color ring back tone application server; Stopping notifying the Multimedia session module to carry out its corresponding function after multimedia color ring back tone is play;
The Multimedia session module is used for being set up Multimedia session under the coordination of multimedia color ring back tone application server by media server and with caller and called joining in the middle of the Multimedia session of being set up.
Further, described media channel foundation and polyphonic ringtone playing module comprise:
Called media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between called mobile switching centre and the media server; Set up the back notice polyphonic ringtone playing module that finishes at passage and carry out its corresponding function;
The polyphonic ringtone playing control module is used for notifying after the foundation of the media channel between called mobile switching centre and the media server is finished the caller media channel to set up module and carries out; The instruction media server begins caller play multimedia CRBT after the foundation of the media channel between calling mobile exchanging center and the media server is finished; And the broadcast and the notice Multimedia session module that stop multimedia color ring back tone behind called off-hook are carried out its corresponding function;
The caller media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between calling mobile exchanging center and the media server.
Further, adopt bearer independent call control Bearer Independent Call Control Protocol mutual between described calling mobile exchanging center and called mobile switching centre and the multimedia color ring back tone application server, adopt Session initiation protocol SIP mutual between described multimedia color ring back tone application server and the media server.
Realization of the present invention is based on call-independent control protocol bearing, after coloring ring back tone playing, utilize the video calling of the conferencing function realization calling and called of media server, because the present invention does not need MSC is done big upgrading, therefore still do not possess in the environment of the two calling functions of multimedia color ring back tone at present MSC, the scheme of utilizing the present invention to propose can realize the quick deployment of Multimedia Ring Back Tone service and popularization in advance.
Description of drawings
Fig. 1 is a network structure of the present invention;
Fig. 2 is signaling process figure of the present invention;
Fig. 3 is the building-block of logic of system of the present invention.
Embodiment
Core concept of the present invention is: based on BIC C agreement, directly call out called by MSC by the CRBT application server, the CRBT application server not only will be to caller play multimedia CRBT, and will call out the called subscriber, finally sets up the video calling between the calling and called.Because what adopt between MSC and multimedia color ring back tone application server is Bearer Independent Call Control Protocol, but this agreement is support media descriptor (SDP not, SessionDescription Protocol) switching, after being calling subscriber and media server switched-media descriptor and coloring ring back tone playing, can't also converse with called subscriber's switched-media descriptor again.So in the scheme that the present invention proposes, proposed that the mode with multimedia conferencing makes calling and called set up the scheme of video calling after coloring ring back tone playing, solved this difficult problem that the limitation of agreement is brought.
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. 1 is shown in the network structure of the present invention, the network element that the present invention mentions comprises radio network controller (RNC), mobile switching centre (MSC), mobile switching centre comprises Mobile Switching Center Server (MSCServer) and media gateway (MGW), application server of Multimedia Ring Back Tone service (AS) and media server (MS).Described MSC and AS, and what transmit between AS and the MS is signaling.What transmit between described MS and the MGW is Media Stream.
Shown in the signaling process figure of Fig. 2, the detailed step that the present invention describes is as follows:
Step 1, caller MSC sends IAM (Initial Address Message) message to AS, carries the media description information (SDP) of caller, thereby triggers Multimedia Ring Back Tone service; Article one message when IAM message is each call setup is the BICC signaling.
Step 2, AS begins to make called and MS to carry out the negotiation of media description information (SDP), so AS initiates not invitation (INVITE) the message call MS with SDP;
Step 3, MS carries the media description information (SDP) of oneself to the affirmation message (200OK) of AS transmission at the invitation message of step 2
Step 4, AS issues called MS C with the media description information (SDP) that IAM message is carried MS in the step 3;
Step 5, called MS C uses APM (Application Transport Mechanism) message to carry called media description information (SDP) and returns to AS;
APM message is application transport mechanism message.Be the signaling of BICC, be mainly used to transmit the transmission information of using.Medium encoding and decoding speech information for example, media bearer tunnel deliver a letter breath and the outer dtmf signal sound of band etc.
Step 6, AS sends ACK (Acknowlege) message to MS and carries media description information called in the step 5 (SDP), and so far called and MS consults to finish, and has set up media channel between called mobile switching centre and the media server;
Step 7, AS sends conducting to called MS C, and (Continuity, COT) message represent that the carrying foundation between called mobile switching centre and the media server is finished;
Step 8, called MS C sends ACM (Address Complete Message) message to AS, and AS is to caller play multimedia CRBT in indication;
Step 9, AS begins to make caller and MS to carry out media description information (SDP) negotiation, so send INVITE to MS, carries the SDP of the caller of obtaining in the step 1;
Step 10, MS returns at the affirmation message (200OK) of INVITE in the step 9 and gives AS, and carries the SDP of MS in acknowledge message;
Step 11, AS sends ACK message to MS and represents affirmation to step 10;
Step 12, AS sends APM message to caller, carries the media description information of MS in the step 10
(SDP), so far represent to set up media channel between calling mobile exchanging center and the media server;
Step 13, AS sends ACM message to caller, and the beginning coloring ring back tone playing is prepared in the notice caller;
Step 14, AS sends INFO to MS, carries the instruction of coloring ring back tone playing in the INFO, and MS begins to the caller coloring ring back tone playing after receiving INFO, and sends acknowledge message (200OK) to AS;
Step 15, called transmission ANM (Answer Message) message is given AS, represents called off-hook;
Step 16, AS sends INFO to MS, carries the instruction that stops coloring ring back tone playing in the INFO, and MS stops to the caller coloring ring back tone playing after receiving INFO, and sends acknowledge message (200OK) to AS;
Step 17, AS sends INFO to MS, and instruct MS creates multimedia conferencing and called adding multimedia conferencing, MS finishes dealing with the back to AS transmission acknowledge message (200OK);
Step 18, AS sends ANM to caller, and expression is to replying of calling out;
Step 19, AS sends INFO to MS, and instruct MS is also added in the step 17 multimedia conferencing of creating with caller, and receives that the 200OK of MS confirms, caller at this moment and calledly can carry out video calling.
Described IAM, APM, COT, ACM, ANM belong to the BICC signaling.Described INVITE, 200OK, ACK, INFO belong to the SIP signaling.
The execution mode that adopts the present invention to propose can be disposed multimedia color ring back tone and video call service fast under the situation of not transforming MSC.
Fig. 3 is the system logic structure figure that the present invention realizes Multimedia Ring Back Tone service, comprising: media channel is set up and polyphonic ringtone playing module and Multimedia session module;
Media channel is set up and the polyphonic ringtone playing module is used to finish calling mobile exchanging center and called mobile switching centre respectively and the media channel between the media server is set up and the Play Control function of multimedia color ring back tone CRBT, is carried out by this module notice Multimedia session module behind called off-hook; Media channel is set up and the polyphonic ringtone playing module comprises that further polyphonic ringtone playing control module, called media channel are set up module and the caller media channel is set up module.Called media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between called mobile switching centre and the media server; Set up the back notice polyphonic ringtone playing module that finishes at passage and carry out its corresponding function; The polyphonic ringtone playing control module is used for notifying after the foundation of the media channel between called mobile switching centre and the media server is finished the caller media channel to set up module and carries out; The instruction media server begins caller play multimedia CRBT after the foundation of the media channel between calling mobile exchanging center and the media server is finished; And the broadcast and the notice Multimedia session module that stop multimedia color ring back tone behind called off-hook are carried out its corresponding function; The caller media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between calling mobile exchanging center and the media server.
The Multimedia session module is used to set up Multimedia session and with caller and called joining in the middle of the Multimedia session of being set up.
In the described system, adopt bearer independent call control Bearer Independent Call Control Protocol mutual between calling mobile exchanging center and called mobile switching centre and the multimedia color ring back tone application server, adopt Session initiation protocol SIP mutual between multimedia color ring back tone application server and the media server.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims (9)

1, a kind of multimedia color ring back tone implementation method based on call-independent control protocol bearing is characterized in that, comprising:
Set up media channel with media server respectively by multimedia color ring back tone application server coordination calling mobile exchanging center and called mobile switching centre, and to caller play multimedia CRBT;
Create multimedia conferencing by multimedia color ring back tone application server indication media server, and caller and called joining in the described multimedia conferencing, thereby the conversation between the realization calling and called.
2, method according to claim 1, it is characterized in that, adopt bearer independent call control Bearer Independent Call Control Protocol mutual between described calling mobile exchanging center and called mobile switching centre and the multimedia color ring back tone application server, adopt Session initiation protocol SIP mutual between described multimedia color ring back tone application server and the media server.
3, method according to claim 1 and 2, it is characterized in that, behind the media channel of setting up between called mobile switching centre and the media server, indicate the multimedia color ring back tone application server to caller play multimedia CRBT by called mobile switching centre, receive the media channel of setting up after the indication of described play multimedia CRBT between calling mobile exchanging center and the media server at the multimedia color ring back tone application server, set up at the media channel between calling mobile exchanging center and the media server and begin caller play multimedia CRBT by multimedia color ring back tone application server instructions media server after finishing.
4, method according to claim 3 is characterized in that, the step of setting up the media channel between called mobile switching centre and the media server is:
B1: the multimedia color ring back tone application server is called out media server, obtains the media description information of media server;
B2: the multimedia color ring back tone application server is called out called with the media description information of media server, and obtains called media description information;
B3: the multimedia color ring back tone application server is issued media server with called media description information, make called and media server between set up media channel.
5, method according to claim 3 is characterized in that, the step of setting up the media channel between calling mobile exchanging center and the media server is:
C1: the multimedia color ring back tone application server is called out described media server with the media description information of caller, and obtains the media description information of described media server;
C2: the multimedia color ring back tone application server passes to calling mobile exchanging center with the media description information of described media server, makes between caller and media server and sets up media channel.
6, method according to claim 3 is characterized in that, multimedia color ring back tone application server indication media server is created multimedia conferencing, and is caller and called adding meeting step:
D1: behind the called off-hook, multimedia color ring back tone application server indication media server is created multimedia conferencing, and with called adding meeting;
D2: multimedia color ring back tone application server indication media server stops caller play multimedia CRBT;
D3: multimedia color ring back tone application server indication media server adds the described multimedia conferencing of setting up among the step D1 with caller, and calling and called are conversed by described multimedia conferencing.
7, a kind of multimedia color ring back tone based on call-independent control protocol bearing is realized system, it is characterized in that, comprising:
Media channel is set up and the polyphonic ringtone playing module, is used for setting up calling mobile exchanging center and called mobile switching centre respectively and media channel between the media server and play multimedia CRBT under the coordination of multimedia color ring back tone application server; Stopping notifying the Multimedia session module to carry out its corresponding function after multimedia color ring back tone is play;
The Multimedia session module is used for being set up Multimedia session under the coordination of multimedia color ring back tone application server by media server and with caller and called joining in the middle of the Multimedia session of being set up.
8, system according to claim 7 is characterized in that, described media channel is set up and the polyphonic ringtone playing module comprises:
Called media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between called mobile switching centre and the media server; Set up the back notice polyphonic ringtone playing module that finishes at passage and carry out its corresponding function;
The polyphonic ringtone playing control module is used for notifying after the foundation of the media channel between called mobile switching centre and the media server is finished the caller media channel to set up module and carries out; The instruction media server begins caller play multimedia CRBT after the foundation of the media channel between calling mobile exchanging center and the media server is finished; And the broadcast and the notice Multimedia session module that stop multimedia color ring back tone behind called off-hook are carried out its corresponding function;
The caller media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between calling mobile exchanging center and the media server.
9, according to claim 7 or 8 described systems, it is characterized in that, adopt bearer independent call control Bearer Independent Call Control Protocol mutual between described calling mobile exchanging center and called mobile switching centre and the multimedia color ring back tone application server, adopt Session initiation protocol SIP mutual between described multimedia color ring back tone application server and the media server.
CN200910085900XA 2009-06-03 2009-06-03 Multimedia coloring ring back tone realizing method based on bearing -independent call control protocol and system thereof Expired - Fee Related CN101588562B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910085900XA CN101588562B (en) 2009-06-03 2009-06-03 Multimedia coloring ring back tone realizing method based on bearing -independent call control protocol and system thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910085900XA CN101588562B (en) 2009-06-03 2009-06-03 Multimedia coloring ring back tone realizing method based on bearing -independent call control protocol and system thereof

Publications (2)

Publication Number Publication Date
CN101588562A true CN101588562A (en) 2009-11-25
CN101588562B CN101588562B (en) 2012-05-09

Family

ID=41372580

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910085900XA Expired - Fee Related CN101588562B (en) 2009-06-03 2009-06-03 Multimedia coloring ring back tone realizing method based on bearing -independent call control protocol and system thereof

Country Status (1)

Country Link
CN (1) CN101588562B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101860630A (en) * 2010-06-22 2010-10-13 中兴通讯股份有限公司 Transmission method and system of out-of-band dual tone multiple frequency (DTMF) signal
WO2012051838A1 (en) * 2010-10-21 2012-04-26 中兴通讯股份有限公司 Bicc signaling front end processor, system and method for bicc color ring ivr service
CN101730321B (en) * 2009-12-31 2012-12-12 华为技术有限公司 SIP-based polyphonic ringtone playing method, device and system
CN103379233A (en) * 2012-04-24 2013-10-30 中兴通讯股份有限公司 Implementation method and system for DTMF out-band signal reception

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100444654C (en) * 2006-08-14 2008-12-17 北京邮电大学 Method and system for implementing multimedia music ringring in mobile communication network and mobile intelligent network
CN101179458B (en) * 2006-11-09 2012-05-09 中兴通讯股份有限公司 Method to implement calling present service of multimedia information
CN101409865A (en) * 2007-10-12 2009-04-15 华为技术有限公司 Method for implementing color bell intercommunication, control equipment and application server for multimedia gateway
CN101325504A (en) * 2008-07-11 2008-12-17 中兴通讯股份有限公司 Method and device for controlling multimedia conference by application server

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101730321B (en) * 2009-12-31 2012-12-12 华为技术有限公司 SIP-based polyphonic ringtone playing method, device and system
CN101860630A (en) * 2010-06-22 2010-10-13 中兴通讯股份有限公司 Transmission method and system of out-of-band dual tone multiple frequency (DTMF) signal
CN101860630B (en) * 2010-06-22 2014-07-02 中兴通讯股份有限公司 Transmission method and system of out-of-band dual tone multiple frequency (DTMF) signal
WO2012051838A1 (en) * 2010-10-21 2012-04-26 中兴通讯股份有限公司 Bicc signaling front end processor, system and method for bicc color ring ivr service
CN103379233A (en) * 2012-04-24 2013-10-30 中兴通讯股份有限公司 Implementation method and system for DTMF out-band signal reception
CN103379233B (en) * 2012-04-24 2016-09-07 中兴通讯股份有限公司 A kind of realization method and system of DTMF out-band signal

Also Published As

Publication number Publication date
CN101588562B (en) 2012-05-09

Similar Documents

Publication Publication Date Title
CN100531267C (en) Method for realizing echo in communication system
CN100563282C (en) The method of listening dailed signal sound at dail line terminal during network interworking
CN100417288C (en) Method of turning multimedia call back to speech call
CN101909192B (en) Television terminal and communication method thereof
CN100466761C (en) Mobile switching centre built in video gateway and method for realizing multimedia interconnection
CN101729555A (en) Method and system for realizing multi-party call of intelligent call services
CN109802913A (en) Merge meeting implementation method and device, electronic equipment, readable storage medium storing program for executing
CN101764802B (en) Method, server and terminal equipment for playing multimedia tone during talking
CN102547416A (en) Method for partially loading media based on mobile phone and television
CN101808099A (en) Method for nesting multi-media in click-to-dial process and click-to-dial business system
CN101588562B (en) Multimedia coloring ring back tone realizing method based on bearing -independent call control protocol and system thereof
CN109889534A (en) A kind of VoIP call method merging IP network and LTE network
CN102281367B (en) The method and system of Three-Way Calling are realized in a kind of Click To Dial
CN101478610A (en) Method, server and terminal device for playing multimedia ring during call
JP4019682B2 (en) Information terminal device, communication method used therefor, and program thereof
CN101001185A (en) Specification processing method of multimedia call
CN101448221B (en) Method for call state for supporting early-session
CN101795330A (en) Method, server and terminal device for playing multimedia ringing tone during call
CN100464554C (en) System and method for playing background sound used for public telephone exchange net
KR100660739B1 (en) Alternation image service method for call waiting occurrence in telecommunication system
CN102244700A (en) Method and system for realizing synchronous-ringing group-calling in click-to-dial service
CN102664863B (en) Method, device, and system for realizing call waiting by user equipment
CN101668229A (en) Method, device and system for calling and controlling multimedia ringtone service
JP2012503372A (en) Method and apparatus for realizing videophone
CN110809128B (en) Method for viewing terminal video based on SIP video call

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120509

Termination date: 20190603