CN1917531A - System and method of sending color ring in multimedia based on mobile communication network - Google Patents
System and method of sending color ring in multimedia based on mobile communication network Download PDFInfo
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Abstract
The system comprises: core network elements (MSC Server,MGW,HLR) in WCDMA R4 mobile network and a MRBT (multimedia ring back tone) platform composed of SAN (signaling access node),AS (application server), MS (media server), DB (database) and server of portal website. The method thereof comprises: adding the ID of MRBT in called HLR; according to the ID and load type of MRBT, the calling MSV server /MGW routes the MRBT call to the home MRBT platform of the called party; the home MRBT platform plays back the MRBT to the calling party; after the called party is off hook, the MSC Server/MGW releases the load between the home MRBT platform of called party and itself; the load link between the calling and called parties is built by the calling and called MSC Server/MGW.
Description
Technical field
The present invention relates to a kind of broadcasting method and system of 3G multimedia color ring back tone, exactly, relate to a kind of system and method for the sending color ring in multimedia based on WCDMA R4 mobile communications network, belong to the value-added service technical field in the 3G (Third Generation) Moblie.。
Background technology
3G network is 2G networks development and extension, and it has broken 2G networks development bottleneck, for operator creates more new opportunity.Moving the application of application and video content is the vital pulling point of 3G business development, also is to help operator to promote the key of the telecommunications income value ARPU of each user's average contribution.3G network can provide more bright and colourful, hommization more, higher-quality business and service with faster rate, and the user will correspondingly obtain more diversification, more excellent application is experienced.
Multimedia color ring back tone (MRBT, Multimedia Ring Back Tone) business be one in the visual telephone service of 3G mobile communications network circuit domain, by the value-added service of called subscriber customization.Its major function is when 3G calling subscriber dials the 3G called subscriber in the video telephone mode, when being called subscriber's ring, system can play one section gorgeous, melodious, as the to have individual character media stream that is customized in advance by the called subscriber for the calling subscriber, substitute common ring-back tone or common 2G CRBT (CRBT, ColorRing Back Tone).This media stream has comprised multiple media contents such as audio frequency, video, picture.
But, because Multimedia Ring Back Tone service is not the 3G basic service, but value-added service, the technical problem that sending color ring in multimedia has become the focus that those skilled in the art pay close attention to and has been badly in need of solving under 3G network how.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of system and method for the sending color ring in multimedia based on WCDMA R4 mobile communications network,, provide the effect of doulbe-sides' victory for user and operator so that under 3G network, realize the business of sending color ring in multimedia.
In order to achieve the above object, the invention provides a kind of system of the sending color ring in multimedia based on WCDMA R4 mobile communications network, comprise the core network element of WCDMA R4 mobile network: the mobile SoftSwitch MSC Server of end office (EO), end office's media gateway MGW and attaching position register HLR; It is characterized in that: described system also comprises the multimedia color ring back tone MRBT platform that a signaling access point SAN by interchange information, application server AS, media server MS, database server DB and door managing web server Portal are formed, the function of this MRBT platform is: when caller MSC Server/MGW the multimedia color ring back tone call proceeding to the MRBT platform of called ownership, this MRBT platform is responsible for carrying out Signalling exchange with calling subscriber's MSCServer/MGW; MGW by the calling subscriber is to calling subscriber's play multimedia CRBT; And multi-media ringtone resource, user profile stored, administers and maintains, service provider SP is managed, the service management and the customization operations of web mode is provided for system manager and user.
The function of each physical components is respectively in the described multimedia color ring back tone MRBT platform:
Signaling access point SAN: independently call out the reception and the transmission of control BICC signaling between the MSC Server of realization MRBT platform and caller with carrying, give application server AS after SAN changes signaling and handle, finish continuing of speech channel;
Database server DB:, be used to store user's business datum and multi-media ringtone resource data, and can only visit this database by database access interface as the core database of MRBT platform;
Application server AS: all resources of control and management MRBT platform, message is carried out Real-time and Concurrent handle, carry out the Multimedia Ring Back Tone service logic, by the action of Session Initiation Protocol control media server MS, safeguard communication interface with other Network Element Function entity;
Media server MS: accept the control of AS, audio frequency, video and other media resource comprised literary composition language conversion, layering and adaptive various processing, by MGW to user's play multimedia bell sound media resource;
Door managing web server Portal: the access approach of the web mode of MRBT platform is provided, is used for the management of system manager's realization to system, user and service provider SP, the user realizes professional customization, the management of bell sound resource.
Described multimedia color ring back tone platform is supported following agreement at least: the call control protocol that comprises ISDN User Part, Bearer Independent Call Control Protocol, Session Initiation Protocol: comprise the H.248/Megaco medium control protocol of agreement, Session Initiation Protocol, MGCP agreement: the media processing protocol that comprises RTP/RTCP agreement, RTSP agreement; Comprise G.711, G.723.1, G.729AB the speech coding form and H.261, H.263, the various media format protocol of MPEG4 video code model.
Attaching position register HLR in the described system is a database of being responsible for mobile subscriber's management, the storage user's that administers all subscription data and mobile subscriber's positional information need be carried out following technological improvement: increase the multimedia color ring back tone sign SS_code of expression called subscriber for the multimedia color ring back tone user.
The MSC Server/MGW of the caller in the described system will increase following function: can judge and the MRBT platform of called ownership between the link bearer type whether satisfy the load bearing requirements of multimedia color ring back tone; Caller MSC Server/MGW can control the multimedia color ring back tone calling procedure according to multimedia color ring back tone sign and bearer types, the MRBT platform of multimedia color ring back tone call proceeding to called ownership.
In order to achieve the above object, the present invention also provides a kind of method of the sending color ring in multimedia based on WCDMA R4 mobile communications network, it is characterized in that: for the Multimedia Ring Back Tone service user increases multimedia color ring back tone sign SS_code, caller MSC Server/MGW calls out multimedia color ring back tone on the multimedia color ring back tone platform that is routed to called ownership according to multimedia color ring back tone sign and bearer types in called HLR; By the multimedia color ring back tone platform to caller play multimedia CRBT; Behind the called off-hook, the bearer channel between the calling and called terminal is directly set up in the carrying between the multimedia color ring back tone platform of caller MSC Server/MGW release and called ownership between the MSC Server/MGW of calling and called, realize the video calling between the calling and called.
Described method comprises the following steps:
(1) after the calling subscriber called out and to have customized Multimedia Ring Back Tone service called, the MSCServer/MGW of caller obtained called Mobile Station Roaming Number MSRN and multimedia color ring back tone sign SS_code from called HLR;
(2) the MSC Server/MGW of caller passes through called MSC Server/MGW to called terminal ringing, initialization Nb interface between the MSC Server/MGW of calling and called;
(3) the MSC Server/MGW of caller according to multimedia color ring back tone sign and bearer types the multimedia color ring back tone call proceeding MRBT platform of called ownership extremely; The MGW initialization Nb interface of the MRBT platform of called ownership and caller; And set up H.245 negotiations process by the MGW and the calling terminal of caller, send multimedia color ring back tone to calling terminal;
(4) called party answer, the carrying between the MSC Server/MGW dismounting of caller and the MRBT platform of called ownership stops the play multimedia CRBT;
(5) directly set up bearer channel between the MSC Server/MGW of calling and called, set up H.245 negotiations process between the calling and called terminal, the beginning video calling; End of conversation, relevant bearer discharges, and flow process finishes.
H.245 the negotiations process of above-mentioned steps (3) and (5) further comprises following operating procedure: if the calling and called terminal is supported window formula numbering host-host protocol WNSRP standard simply again, then adopt WNSRP standard acceleration negotiations process H.245; If the calling and called terminal is not supported the WNSRP standard, then carry out following processing operation: the timer value that dwindles each stage among the H245; Many H.245 negotiation message be assembled into a message bag and send, to accelerate negotiations process.
Advantage of the present invention and effect are: this system is little to the change of 3G network equipment, commences business fast easily, and common speech CRBT and multimedia color ring back tone are separated fully in call treatment, can ensure the stability of existing Ring Back Tone service.
Can make 3G subscription when enjoying common Ring Back Tone service, increase the new experience of Multimedia Ring Back Tone service again.Along with the 3G mobile subscriber is increasing, under the situation that the Multimedia Ring Back Tone service customer group increases gradually, platform in the system of the present invention can independently be built, smooth evolution transition: promptly only the multimedia color ring back tone platform is increased the expansion of system handles capacity, directly utilize the data storage part and the management equipments such as user/business of common color ring platform; Under the situation that common color ring user reduces, can carry out the equipment transformation that reuses, directly use software upgrading to save the equipment investment expense greatly common Ring Back Tone service platform CRBT to multimedia color ring back tone platform MRBT platform.
In addition, the operation system of sending color ring in multimedia of the present invention has complete signaling interface, supports multiple networking mode, what adopt is central controlled distribution process mode, can dispose flexibly and adjust according to consumption between each network element, ecad be strong, has good popularization and application prospect.
Description of drawings
Fig. 1 is that the system configuration of the sending color ring in multimedia of mobile communications network of the present invention is formed schematic diagram.
Fig. 2 is that the multimedia color ring back tone platform structure in the system of the present invention is formed schematic diagram.
Call signalling flow schematic diagram when Fig. 3 is to use the sending color ring in multimedia of the inventive method.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.，
Referring to Fig. 1 and Fig. 2, introduce the system of a kind of sending color ring in multimedia based on WCDMA (R4) mobile communications network of the present invention, this system comprises the core network element of WCDMA R4 mobile network: the mobile SoftSwitch MSC Server of end office (EO), end office's media gateway MGW, attaching position register HLR and the multimedia color ring back tone platform that the signaling access point SAN by interchange information, application server AS, media server MS, database server DB and door managing web server Portal form.This MRBT platform is the newly-increased network element in the system, and major function is: when caller MSC Server/MGW the multimedia color ring back tone call proceeding to the MRPT platform, the MRPT platform is responsible for carrying out Signalling exchange with calling subscriber's MSC Server/MGW; MGW by the calling subscriber is to calling subscriber's play multimedia CRBT; In addition, MRBT also will provide the function that multi-media ringtone resource, user profile are stored, administered and maintained, and the management function to service provider SP is provided; The service management and the customization operations of web mode are provided for system manager and user.
Each functions of components is respectively in this MRBT platform:
Signaling access point SAN: the reception and the transmission of the BICC signaling between the MSC Server of realization MRBT platform and caller.Give application server AS after SAN changes signaling and handle, finish continuing of speech channel.
Database server DB:, be mainly used in storage user's business datum and multi-media ringtone resource data, and can only visit this database by database access interface as the core database of MRBT platform.
Application server AS: all resources of control and management MRBT platform, message to be carried out Real-time and Concurrent handle, operation Multimedia Ring Back Tone service logic by the action of Session Initiation Protocol control media server MS, is safeguarded the communication interface with other functional entity.
Media server MS: accept the control of application server AS, audio frequency, video and other media resource handled (as the conversion of literary composition language, layering, adaptive etc.), by MGW to user's play multimedia bell sound media resource;
Door managing web server Portal: the access approach of the web mode of MRBT platform is provided, is used for the management of system manager's realization to system, user and service provider SP, the user realizes professional customization, the management of bell sound resource.
This multimedia color ring back tone platform is supported following agreement:
Call control protocol: ISDN User Part, Bearer Independent Call Control Protocol, Session Initiation Protocol etc.;
Medium control protocol agreement: H.248/Megaco agreement, Session Initiation Protocol, MGCP agreement etc.;
Media processing protocol: RTP/RTCP agreement, RTSP agreement etc.;
Media format protocol: G.711, G.723.1, G.729AB wait the speech coding form and H.261, H.263, video code model such as MPEG4.
In addition, the function of the original network element in the said system and the technological transformation that need carry out are described as follows:
Attaching position register HLR is responsible for the database of mobile subscriber's management, the storage user's that administers all subscription data and mobile subscriber's positional information.The present invention will carry out following transformation to called HLR: increase the multimedia color ring back tone sign SS_code of expression called subscriber for the multimedia color ring back tone user in HLR.
Mobile SoftSwitch MSC Server is responsible for by Iu-CS interface 3G RNS being realized access control, by Mc interface control MGW, and provides calling control and mobile management function; Termination user-network signal, processing mobile subscriber's business datum.One or several local networks that wireless access network covered that MSC Server inserts are called the reciprocal exchange of business area under one's jurisdiction of this MSC Server.
The media gateway device MGW of end office (EO) is responsible for realizing media conversion under the control of the MSC Server of this MGW ownership, and carrying control and media processing capacity is provided.Be provided with built-in SGW SG, when supporting the MSC Server intercommunication of other time division multiplexing tdm network element and this MGW ownership based on the SS7 signal switching of signaling transmission SIGTRAN mode.User's face by inserting Iu-CS interface is linked into 3G core net circuit domain (R4 soft exchanging network) with user's face Media Stream of 3G RAN, and user's face that also can be by inserting the A interface is linked into the R4 soft exchanging network with user's face Media Stream of 2G BSS.The local network that the wireless access network that MGW inserts covers is called the professional area under one's jurisdiction of this MGW.
The present invention will carry out following technological transformation to the MSC Server/MGW of caller: can judge and the MRBT platform of called ownership between the link bearer type whether satisfy the load bearing requirements of multimedia color ring back tone; Caller MSC Server/MGW can control the multimedia color ring back tone calling procedure according to multimedia color ring back tone sign and bearer types, the MRBT platform of multimedia color ring back tone call proceeding to called ownership.
Referring to Fig. 1, introduce the method for sending color ring in multimedia of the present invention, it is to increase the multimedia color ring back tone sign for the Multimedia Ring Back Tone service user in called HLR; Caller MSC Server/MGW calls out multimedia color ring back tone on the multimedia color ring back tone platform that is routed to called ownership according to multimedia color ring back tone sign and bearer types; This multimedia color ring back tone platform is responsible for to caller play multimedia CRBT; Behind the called off-hook, the bearer channel between the calling and called terminal is directly set up in the carrying between the multimedia color ring back tone platform of caller MSC Server/MGW release and called ownership between the calling and called MSC Server/MGW, realize the video calling between the calling and called.
Referring to Fig. 1 and Fig. 3, specifically introduce the operating procedure of the implementation method of sending color ring in multimedia business of the present invention:
(1) after the calling subscriber called out and to have customized Multimedia Ring Back Tone service called, caller MSCServer/MGW obtained called MSRN and multimedia color ring back tone sign from called HLR.(referring to the step 1 among Fig. 3～4);
(2) caller MSC Server/MGW passes through called MS C Server/MGW to called terminal ringing, initialization Nb interface between the MSC Server/MGW of calling and called.(referring to the step 5 among Fig. 3～13);
(3) caller MSC Server/MGW according to multimedia color ring back tone sign and bearer types the multimedia color ring back tone call proceeding MRBT platform of called ownership extremely; The MGW initialization Nb interface of the MRBT platform of called ownership and caller; And set up H.245 negotiations process by the MGW and the calling terminal of caller, send multimedia color ring back tone to calling terminal.(referring to the step 14 among Fig. 3～23);
(4) called party answer, the carrying between the MSC Server/MGW dismounting of caller and the MRBT platform of called ownership stops the broadcast of multimedia color ring back tone.(referring to the step 24 among Fig. 3～29);
(5) directly set up bearer channel between the calling and called MSC Server/MGW, set up H.245 negotiations process between the caller and called users, the beginning video calling; End of conversation, relevant bearer discharges, and flow process finishes.(referring to the step 30 among Fig. 3～34);
In the H.245 negotiations process of above-mentioned steps (3) and (5), for quickening negotiations process H.245, adopt following method: if user terminal is supported the WNSRP standard, then adopt WNSRP standard acceleration negotiations process H.245, if user terminal is not supported the WNSRP standard, then carry out following processing: the timer value in each stage in dwindling H.245; Many H.245 negotiation message be assembled into a message bag and send, to accelerate negotiations process.
Referring to Fig. 3, introduce the idiographic flow that carries out the calling signaling exchange between two 3G subscriptions of applying for Multimedia Ring Back Tone service in detail:
1, step 1～step 2: video call is initiated in caller, the called Multimedia Ring Back Tone service that customized, and the MSC Server/MGW of caller handles calling, and ITC is " UDI " in the BC_IE cell that Setup message is carried, and " H.223﹠amp ORA is; H.245 ";
2, step 3～step 4: the MSC Server/MGW of caller obtains called MSRN and multimedia color ring back tone sign to called HLR inquiry;
3, step 5: the MSC Server/MGW of caller sends the IAM signaling to called MSC Server/MGW;
4, step 6～step 13: called terminal ringing process, the MSC Server/MGW initialization Nb interface of calling and called;
5, step 14～step 23: the MSC Server/MGW of caller initiates the IAM signaling according to multimedia color ring back tone sign and bearer types (BS30) to called MRBT platform, the MGW initialization Nb interface of MRBT platform and caller, loopback ACM, ANM, MGW and calling terminal by caller are set up H.245 process, send multimedia color ring back tone;
6, step 24～step 29: called party answer, called MSC Server/MGW sends the forward direction ANM, the MSC Server/MGW dismounting of caller and the carrying between the MRBT platform, the multimedia color ring back tone process stops;
7, step 30～step 33: directly set up bearing link between the calling and called MSC Server/MGW, set up H.245 negotiations process between the caller and called users, open logical channel, enter talking state.Begin video calling between the calling and called;
8, step 34: end of conversation, relevant bearer discharges, and flow process finishes.
The present invention has built pilot system, and has carried out test and implemented.MRBT platform in the pilot system is made up of network elements such as signaling access point SAN, application server AS, media server MS, database server DB and portal site server Portal, and each network element device can be disposed flexibly and adjust according to professional consumption.Each network element hardware is made up of high-performance computer/server and some Industrial Control Computers and all kinds of resource integrated circuit board.Each network element entity in the system links to each other by network, adopts the tcp/ip communication agreement, and network using 100M high-speed local area network also can adopt the active and standby dual network scheme of using.
The multimedia color ring back tone platform in the system test and the method for sending color ring in multimedia business are by following test: test is passed through in the associating IMS laboratory at HP and Intel, with the IMS operational trials that China Mobile's tissue has been crossed by NORTEL mutual group Netcom, test by each side is strict in the graduate TD-SCDMA of China Putian's information technology laboratory.The result of these tests is successful, has realized goal of the invention.
Claims (8)
1, a kind of system of the sending color ring in multimedia based on WCDMA R4 mobile communications network comprises the core network element of WCDMA R4 mobile network: the mobile SoftSwitch MSC Server of end office (EO), end office's media gateway MGW and attaching position register HLR; It is characterized in that:
Described system also comprises the multimedia color ring back tone MRBT platform that a signaling access point SAN by interchange information, application server AS, media server MS, database server DB and door managing web server Portal are formed, the function of this MRBT platform is: when caller MSC Server/MGW the multimedia color ring back tone call proceeding to the MRBT platform of called ownership, this MRBT platform is responsible for carrying out Signalling exchange with calling subscriber's MSC Server/MGW; MGW by the calling subscriber is to calling subscriber's play multimedia CRBT; And multi-media ringtone resource, user profile stored, administers and maintains, service provider SP is managed, the service management and the customization operations of web mode is provided for system manager and user.
2, the system of sending color ring in multimedia according to claim 1 is characterized in that: the function of each physical components is respectively in the described multimedia color ring back tone MRBT platform:
Signaling access point SAN: independently call out the reception and the transmission of control BICC signaling between the MSC Server of realization MRBT platform and caller with carrying, give application server AS after SAN changes signaling and handle, finish continuing of speech channel;
Database server DB:, be used to store user's business datum and multi-media ringtone resource data, and can only visit this database by database access interface as the core database of MRBT platform;
Application server AS: all resources of control and management MRBT platform, message is carried out Real-time and Concurrent handle, carry out the Multimedia Ring Back Tone service logic, by the action of Session Initiation Protocol control media server MS, safeguard communication interface with other Network Element Function entity;
Media server MS: accept the control of AS, audio frequency, video and other media resource comprised literary composition language conversion, layering and adaptive various processing, by MGW to user's play multimedia bell sound media resource;
Door managing web server Portal: the access approach of the web mode of MRBT platform is provided, is used for the management of system manager's realization to system, user and service provider SP, the user realizes professional customization, the management of bell sound resource.
3, the system of sending color ring in multimedia according to claim 1 is characterized in that: described multimedia color ring back tone platform is supported following agreement at least: the call control protocol that comprises ISDN User Part, Bearer Independent Call Control Protocol, Session Initiation Protocol: comprise the H.248/Megaco medium control protocol of agreement, Session Initiation Protocol, MGCP agreement: the media processing protocol that comprises RTP/RTCP agreement, RTSP agreement; Comprise G.711, G.723.1, G.729AB the speech coding form and H.261, H.263, the various media format protocol of MPEG4 video code model.
4, the system of sending color ring in multimedia according to claim 1, it is characterized in that: the attaching position register HLR in the described system is a database of being responsible for mobile subscriber's management, the storage user's that administers all subscription data and mobile subscriber's positional information need be carried out following technological improvement: increase the multimedia color ring back tone sign SS_code of expression called subscriber for the multimedia color ring back tone user.
5, the system of sending color ring in multimedia according to claim 1 is characterized in that: the MSC Server/MGW of the caller in the described system will increase following function: can judge and the MRBT platform of called ownership between the link bearer type whether satisfy the load bearing requirements of multimedia color ring back tone; Caller MSCServer/MGW can control the multimedia color ring back tone calling procedure according to multimedia color ring back tone sign and bearer types, the MRBT platform of multimedia color ring back tone call proceeding to called ownership.
6, a kind of method based on WCDMA R4 mobile communications network sending color ring in multimedia, it is characterized in that: for the Multimedia Ring Back Tone service user increases multimedia color ring back tone sign SS_code, caller MSC Server/MGW calls out multimedia color ring back tone on the multimedia color ring back tone platform that is routed to called ownership according to multimedia color ring back tone sign and bearer types in called HLR; By the multimedia color ring back tone platform to caller play multimedia CRBT; Behind the called off-hook, the bearer channel between the calling and called terminal is directly set up in the carrying between the multimedia color ring back tone platform of caller MSC Server/MGW release and called ownership between the MSC Server/MGW of calling and called, realize the video calling between the calling and called.
7, the method for sending color ring in multimedia according to claim 6 is characterized in that, comprises the following steps:
(1) after the calling subscriber called out and to have customized Multimedia Ring Back Tone service called, the MSCServer/MGW of caller obtained called Mobile Station Roaming Number MSRN and multimedia color ring back tone sign SS_code from called HLR;
(2) the MSC Server/MGW of caller passes through called MSC Server/MGW to called terminal ringing, initialization Nb interface between the MSC Server/MGW of calling and called;
(3) the MSC Server/MGW of caller according to multimedia color ring back tone sign and bearer types the multimedia color ring back tone call proceeding MRBT platform of called ownership extremely; The MGW initialization Nb interface of the MRBT platform of called ownership and caller; And set up H.245 negotiations process by the MGW and the calling terminal of caller, send multimedia color ring back tone to calling terminal;
(4) called party answer, the carrying between the MSC Server/MGW dismounting of caller and the MRBT platform of called ownership stops the play multimedia CRBT;
(5) directly set up bearer channel between the MSC Server/MGW of calling and called, set up H.245 negotiations process between the calling and called terminal, the beginning video calling; End of conversation, relevant bearer discharges, and flow process finishes.
8, the method for sending color ring in multimedia according to claim 7, it is characterized in that: the H.245 negotiations process of described step (3) and (5) further comprises following operating procedure: if the calling and called terminal is supported window formula numbering host-host protocol WNSRP standard simply again, then adopt WNSRP standard acceleration negotiations process H.245; If the calling and called terminal is not supported the WNSRP standard, then carry out following processing operation: the timer numerical value in each stage in dwindling H.245; Many H.245 negotiation message be assembled into a message bag and send, to accelerate negotiations process.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101621588B (en) * | 2007-09-04 | 2011-01-05 | 华为技术有限公司 | Method for calling video phone |
| CN101640731B (en) * | 2008-08-01 | 2011-12-28 | 深圳市东进软件开发有限公司 | Polyphonic ringtone server, method for realizing polyphonic ringtone, and device and method for identifying polyphonic ringtone |
| CN101635819B (en) * | 2007-09-04 | 2012-01-11 | 华为技术有限公司 | Video telephone calling method and video telephone calling system |
| US20120086766A1 (en) * | 2007-03-31 | 2012-04-12 | Huawei Technologies Co., Ltd. | Multimedia calling methods and systems for video phones |
| CN101969615B (en) * | 2007-03-31 | 2012-12-12 | 华为技术有限公司 | Videophone calling method |
| CN101217706B (en) * | 2008-01-17 | 2012-12-19 | 中兴通讯股份有限公司 | A method and system for realizing color ring back tone in soft exchange |
| CN109104618A (en) * | 2018-09-03 | 2018-12-28 | 中国联合网络通信集团有限公司 | Service push method, apparatus and system |
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2006
- 2006-09-01 CN CN 200610127970 patent/CN1917531A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120086766A1 (en) * | 2007-03-31 | 2012-04-12 | Huawei Technologies Co., Ltd. | Multimedia calling methods and systems for video phones |
| CN101969615B (en) * | 2007-03-31 | 2012-12-12 | 华为技术有限公司 | Videophone calling method |
| US8351906B2 (en) | 2007-03-31 | 2013-01-08 | Huawei Technologies Co., Ltd. | Calling methods and systems for video phone |
| US8630628B2 (en) | 2007-03-31 | 2014-01-14 | Huawei Technologies Co., Ltd. | Multimedia calling methods and systems for video phones |
| CN101621588B (en) * | 2007-09-04 | 2011-01-05 | 华为技术有限公司 | Method for calling video phone |
| CN101635819B (en) * | 2007-09-04 | 2012-01-11 | 华为技术有限公司 | Video telephone calling method and video telephone calling system |
| CN101217706B (en) * | 2008-01-17 | 2012-12-19 | 中兴通讯股份有限公司 | A method and system for realizing color ring back tone in soft exchange |
| CN101640731B (en) * | 2008-08-01 | 2011-12-28 | 深圳市东进软件开发有限公司 | Polyphonic ringtone server, method for realizing polyphonic ringtone, and device and method for identifying polyphonic ringtone |
| CN109104618A (en) * | 2018-09-03 | 2018-12-28 | 中国联合网络通信集团有限公司 | Service push method, apparatus and system |
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