CN1867002B - System and method for realizing multimedia ring back tone service - Google Patents

System and method for realizing multimedia ring back tone service Download PDF

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Publication number
CN1867002B
CN1867002B CN2005100695887A CN200510069588A CN1867002B CN 1867002 B CN1867002 B CN 1867002B CN 2005100695887 A CN2005100695887 A CN 2005100695887A CN 200510069588 A CN200510069588 A CN 200510069588A CN 1867002 B CN1867002 B CN 1867002B
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terminal
msc server
calling terminal
vig
function
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CN2005100695887A
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CN1867002A (en
Inventor
张辉
金伟荣
成义华
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN2005100695887A priority Critical patent/CN1867002B/en
Priority claimed from EP06741882A external-priority patent/EP1855475A4/en
Publication of CN1867002A publication Critical patent/CN1867002A/en
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Abstract

The invention relates to a system for realizing multimedia backward bell service and relative method. Wherein, it comprises the third-generation 3G communicate network, a multimedia backward bell MRBTplatform for storing the multimedia backward bell of 3G communicate network, and a mobile service exchange center MSC Server that setting the VIG function of multimedia gateway; the MRBT platform viathe MSC server is connected to the multimedia gateway that managing the terminal of 3G communicate network; the MSC Server with VIG function is used to build the communicate chain circuit from the terminal, MGW, MSC Server to the MRBT platform, when the terminal initializes calling and before receiving calling; the MRBT platform via said communicate chain circuit displays multimedia backward belltothe terminal.

Description

A kind of system and method for realizing multimedia ring back tone service
Technical field
The present invention relates in the third generation (3G) communication network, realize the scheme of audible ringing tone service, particularly a kind of system and method for realizing multimedia ring back tone service.
Background technology
Usually said bell sound generally is meant terminal called when receiving calling, the ring back tone of calling terminal self, and ring-back tone is meant in the process of calling terminal calling terminal called, by the bell sound of communication system network to the caller broadcast.When calling terminal is called out this terminal as terminal called, in a period of time before after connecting, not answering with terminal called, use that the user of calling terminal hears no longer be original " too " ring-back tone of type, but by the ring-back tone of terminal called in the communication system network customization.Ring-back tone can provide music that the communication system network of audible ringing tone service stores in advance and song etc.
Audible ringing tone service not only can be applied among the mobile network, also can be applied in fixed network or 3G communication network, in Wideband Code Division Multiple Access (WCDMA) (WCDMA) network.
Because the 3G communication network is supported multimedia service, so in the 3G communication network, not only can adopt sound as ring-back tone, can also adopt video pictures as ring-back tone.But, in the 3G communication network, but also do not realize multimedia ring back tone service now.
Summary of the invention
In view of this, main purpose of the present invention is a kind of system that realizes multimedia ring back tone service in the WCDMA network is provided on the one hand, and this system can realize multimedia ring back tone service in the 3G communication network.
Another aspect of the present invention provides a kind of method that realizes multimedia ring back tone service in the WCDMA network, and this method can realize multimedia ring back tone service in the 3G communication network.
According to above-mentioned purpose, technical scheme of the present invention is achieved in that
A kind of system that realizes multimedia ring back tone service, comprise: third generation 3G communication network, this system also comprises: the multimedia audible ringing tone MRBT platform and the mobile services switching centre MSC Server that is provided with Video Interworking Gateway VIG function of the multimedia audible ringing tone of terminal in the storage 3G communication network, wherein
The MRBT platform links to each other with the multimedia gateway MGW of administration terminal in the 3G communication network by the MSC Server that is provided with the VIG function, carry out after call capabilities consults with calling terminal, the MSC Server that is provided with the VIG function is used for initiating a call to before the call through when terminal, foundation is passed through MGW, is provided with the communication link of the MSC Server of VIG function to the MRBT platform from terminal, and the communication link that the MRBT platform passes through to be set up is to the terminal plays multimedia audible ringing tone.
Described 3G communication network is a Wideband Code Division Multiple Access (WCDMA) WCDMA network.
When terminal call is connected, the MSC Server of the described VIG of being provided with function is used to remove the communication link from the MSC Server that is provided with the VIG function to the MRBT platform, foundation from the MSC Server that is provided with the VIG function by by the MSC Server under the calling terminal to by the communication link of calling terminal, carry out terminal and by the conversation of calling terminal.
A kind of method that realizes multimedia ring back tone service is provided with the MRBT platform of storage multimedia audible ringing tone and at the MSC of communication system network Server the VIG function is set at communication system network, and this method also comprises:
Before calling terminal initiates a call to call through to terminal called, carry out after call capabilities consults with calling terminal, be provided with the communication link of MSC Server foundation from MSC Server, the MGW of MRBT platform to calling terminal of VIG function, will send to calling terminal by communication link at the multimedia audible ringing tone by the terminal called setting of MRBT platform storage through being provided with the VIG function.
When the MSC of the described VIG of being provided with function Server sets up communication link, calling terminal is not chargeed.
During to the call through of terminal called, this method further comprises at calling terminal:
The MSC Server that is provided with the VIG function removes the communication link of MRBT platform to the MSCServer that is provided with the VIG function, foundation is provided with the communication link of the MSC Server of VIG function to terminal called, carry out calling terminal through being provided with the VIG function MSC Server and MGW to the conversation of terminal called.
When the MSC Server of the described VIG of being provided with function set up the MSC Server that is provided with the VIG function to the communication link of terminal called, the MSC Server that is provided with the VIG function began to carry out this call charging to calling terminal.
Before the MSC Server that is provided with the VIG function set up communication link, this method also comprised: determine that terminal called is provided with multimedia audible ringing tone and the paging step to terminal called at the MRBT platform.
Described definite terminal called in the process that the MRBT platform is provided with multimedia audible ringing tone is:
Be provided with the attaching position register HLR of the MSC Server inquiry storage terminal called CAMEL-Subscription-Information of VIG function, HLR returns the indication terminal called is provided with multimedia audible ringing tone at the MRBT platform message for the MSC Server that is provided with the VIG function.
To calling terminal media formats is set in being provided with the MSC Server of VIG function, described will be to send to calling terminal according to set media formats at the multimedia audible ringing tone by the terminal called setting of MRBT platform storage.
It is described that to calling terminal media formats to be set be to be provided with according to being provided with the MSC Server of VIG function and call capabilities negotiation result that calling terminal carries out;
Or according to the MSC Server that is provided with the VIG function calling terminal call capabilities rank the MRBT platform is provided with from MRBT platform being stored in advance of receiving.
From such scheme as can be seen, the present invention in the 3G communication network, increased the multimedia audible ringing tone of multimedia audible ringing tone (MRBT) platform can be provided and in the mobile services switching centre (MSC Server) of 3G communication network, be provided be used for transmitting multimedia ring-back tone between terminal and the MRBT platform have Interworking gateway (VIG) function.When providing multimedia audible ringing tone to terminal, set up communication link from the MSC Server of MRBT platform through having the VIG function, multimedia gateway (MGW) to terminal by the MSC Server with VIG function, the multimedia body ring-back tone that the MRBT platform will be stored in advance sends to terminal.Therefore, system and method provided by the invention can be realized multimedia ring back tone service in the 3G communication network.
Description of drawings
Fig. 1 realizes the system schematic of multimedia ring back tone service in the WCDMA system for the present invention;
Fig. 2 realizes the flow chart of the method for multimedia ring back tone service in the WCDMA system for the present invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, below lift specific embodiment and, the present invention is further elaborated with reference to accompanying drawing.
Because in the prior art, 3G communication network network side can't send multimedia audible ringing tone to terminal, so the present invention is at the 3G communication network, as realizing multimedia ring back tone service in the WCDMA network, having increased in the WCDMA network provides the MRBT of multimedia audible ringing tone platform, and has increased Video Interworking Gateway (VIG) function in existing mobile services switching centre (MSC Server).Wherein, the MSC Server with VIG function is used to support the MRBT platform to send multimedia audible ringing tone to terminal.The system schematic of realization multimedia ring back tone service as shown in Figure 1 in the WCDMA system: provide the system of multimedia audible ringing tone to comprise calling terminal, Node B (NodeB) under the calling terminal, calling mobile exchanging center (O-MSC Server) and the caller multimedia gateway (O-MGW) of NodeB under the administration calling terminal, terminal called, NodeB under the terminal called, called mobile services switching centre (T-MSC Server) and the called multimedia gateway (T-MGW) of NodeB under the administration terminal called, attaching position register (HLR) and MRBT platform.
The MSC Server with VIG function here mainly finishes Service Switching Function and CCF, and the multimedia audible ringing tone that obtains from the MRBT platform for terminal transmission, O-MSCServer wherein is the MSC Server of calling terminal, T-MSC Server is the visited MSC Server of terminal called, main preservation terminal called current information, and in calling procedure, be accomplished to continuing between the terminal called.
MGW mainly finishes continuing between MSC Server and the terminal, makes the RMBT platform can send to terminal by MGW through the multimedia audible ringing tone that MSCServer sends.
HLR mainly preserves the CAMEL-Subscription-Information of terminal, and itself and MSC Server carry out alternately, and the information of this current institute of MSC Server office terminal is provided to MSCServer.Preserve terminal among the HLR and whether open the information of multimedia ring back tone service, at HLR during, can carry " SS-CODE " and come whether opening audible ringing tone service of marking terminal to MSC Server echo reply message.
The MRBT platform is used to preserve the multimedia audible ringing tone that terminal sets in advance, and when terminal is called out, multimedia audible ringing tone is sent to terminal by MSC Server and MGW successively.
Carry by Internet protocol (IP) between MRBT platform of the present invention and the MSC Server, the information of transmitting-receiving adopts session initiation protocol (SIP), adopts the real-time transport protocol (rtp) agreement between MRBT platform and the MGW.
Fig. 2 realizes the flow chart of the method for multimedia ring back tone service in the WCDMA system for the present invention, suppose that calling terminal is the 3G communication network terminal, terminal called is a 3G terminal, calling terminal is initiated video call (VP) to terminal called, adopt ISDN User Part between O-MSC Server and the T-MSC Server, its concrete steps are:
Step 200, calling terminal are dialed the number of terminal called, send promptly for O-MSC Server and set up (SETUP) message, initiate VP.This called terminal number is mobile subscriber's ISDN(Integrated Service Digital Network) number (MSISDN).
The MSISDN that step 201, O-MSC Server are carried according to this calling gets roaming information (SRI) message to what HLR sent inquiry terminal called current location information.
Step 202, HLR to the T-MSC at the current place of terminal called Server send obtain terminal called current roaming number obtain roaming number (PRN) message.
Step 203, T-MSC Server send the roaming number of terminal called by PRN-ACK.
Step 204, HLR send to O-MSC Server with the roaming number of the terminal called that gets access to by obtaining roaming number result (SRI-ACK) message, in SRI-ACK message, SS-CODE is set to a particular value, is specified by operator, is used to identify the terminal called opening audible ringing tone service.
Step 205, O-MSC Server determine that according to SRI-ACK message terminal called supports audible ringing tone service, and O-MSC Server is according to calling terminal place network and the character of initiating this calling, determine that this is called out to be VP.
If calling terminal and calling terminal place network support VP, and the calling that calling terminal is initiated is VP determine then that this is called out and are VP; Otherwise, think that then this is called out is audio call.
O-MSC Server sends IAM message to T-MSC Server, and this message is carried the MSRN of terminal called, and paging is called.
MSRN paging (PGAING) terminal called that step 206, T-MSC Server carry according to this message.
After step 207, the terminal called paging success, send ring (Alerting) message for T-MSC Server.
Step 208, T-MSC Server send Address Complete Message (ACM) message for O-MSC Server after receiving Alerting message, inform that O-MSC Server connects calling terminal.
Step 209, O-MSC Server send Alerting message to calling terminal, and then send connection (CONNECT) message, and O-MSC Server does not charge to calling terminal.
Step 210, O-MSC Server with " MSISDN of Prefix+Flag+ terminal called " as called number, wherein Prefix is used for call proceeding to color ring platform, Flag sign play multimedia CRBT still is the speech CRBT, adopt Session Initiation Protocol, send INVITE to the MRBT platform, and in INVITE, carry calling number.
Step 211, MRBT platform send 200OK message to O-MSC Server.
Step 212, O-MSC Server send to the MRBT platform and confirm (ACK) message.
Step 213, the calling terminal that receives CONNENT message are finished the capability negotiation process and are connected communication link from calling terminal, O-MGW, O-MSC Server to the MRBT platform.
In order to realize giving calling terminal play multimedia audible ringing tone service by the MRBT platform, as the video ring-back tone, the present invention is in step 208~213, set up a communication link from calling terminal, O-MGW, O-MSCServer to the MRBT platform.
The audible ringing tone service information that step 214, MRBT platform set in advance according to terminal called, search the multimedia audible ringing tone information of terminal called to customized by calling terminal, pass through O-MSC Server and O-MGW successively to calling terminal play multimedia ring-back tone, as the video ring-back tone.
Because the present invention is provided with the VIG function at O-MSC Server in advance, so O-MSC Server of the present invention can set up the communication link between MRBT and the calling terminal, and by communication link transmitting multimedia ring-back tone.
Step 215, terminal called send CONNECT message to T-MSC Server after replying this calling.
Step 216, T-MSC Server send response message (ANM) to O-MSC Server.
Communication link between step 217, O-MSC Server dismounting and the MRBT platform sends release (BYE) message to the MRBT platform.
Step 218, MRBT platform send 200OK message to O-MSC Server.
Step 219~220, O-MSC Server finish the call capabilities negotiations process, set up the communication link of calling terminal to terminal called, begin calling terminal is chargeed.
After step 221, O-MSC Server finished the call capabilities negotiations process of calling terminal and terminal called, calling terminal and terminal called were conversed.
Step 222, after calling terminal or terminal called finish this conversation, calling terminal successively by O-MSC Server and T-MSC Server to terminal called, perhaps terminal called passes through T-MSC successively
Server and O-MSC Server send to calling terminal and discharge (REL) message, remove the communication link of calling terminal and terminal called, call release, and O-MSC Server stops to charge to calling terminal.
The present invention is in step 205, if when determining that this calls out to audio call, then O-MSCServer sets up from the MRBT platform and connects to the carrying of calling terminal through O-MSC Server, and giving by O-MGW by the MRBT platform is the voice ring-back tone that calling terminal customizes in advance to calling terminal broadcast terminal called.After replying at terminal called, O-MSC Server removes from the MRBT platform and connects to the carrying of calling terminal through O-MGW, according to the communication link of prior art foundation from the calling terminal to the terminal called, finishes the communication of calling terminal terminal called.This process is identical with the process of realization voice ring-back tone of the prior art, can not be applied to the VIG function of O-MSC Server.
Because MRBT platform of the present invention is before giving calling terminal play multimedia ring-back tone, must set up communication link by O-MSC Server and O-MGW to calling terminal successively from the MRBT platform, consult so must finish the call capabilities of MRBT platform and calling terminal.Set up after the communication link between MRBT platform and the calling terminal, O-MSC Server receives the ACM message that T-MSC Server sends, and this moment, O-MSC Server can not charge, must wait until set up communication link between calling terminal and the terminal called after, after receiving the ANM of T-MSC Server transmission, begin again calling terminal is chargeed.Thereby avoided because in advance will be to the problem of calling terminal charging by the communication link of O-MSC Server foundation from the MRBT platform to calling terminal for sending multimedia audible ringing tone, calling terminal can not paid because listening to multimedia audible ringing tone, improve the enthusiasm that the user uses multimedia ring back tone service, helped carrying out of multimedia ring back tone service.
In order to set up communication link by O-MSC Server and O-MGW to calling terminal successively from the MRBT platform, O-MSC Server and calling terminal will carry out call capabilities to be consulted, because O-MSCServer this moment is not also known the call capabilities rank of terminal called, O-MSC Server can give calling terminal play multimedia ring-back tone on the communication link of setting up by the MRBT platform according to the selected media formats of the call capabilities rank that calling terminal is supported.By the time after the terminal called off-hook was replied, O-MSCServer carries out call capabilities with terminal called again to be consulted, if terminal called does not support O-MSCServer for the selected media formats of calling terminal, then can cause this call failure.
In order to address this problem, the present invention can be before carrying out multimedia ring back tone service, investigate and add up the call capabilities rank that various 3G terminal is supported in the current communication network, the media formats of selecting all terminals all to support, in O-MSC Server, be configured, in play multimedia ring-back tone and calling terminal and terminal called communication process, carry out the foundation that call capabilities is consulted as O-MSC Server and calling terminal, terminal called.
When in case terminal called is not supported the media formats of selected calling terminal support in play multimedia ring-back tone process, by O-MSC Server the conversation process in, the Media Stream that terminal called is sent carries out media format conversion, guarantees that the communication between calling terminal and the terminal called can normally be carried out.
The present invention can arrange several call capabilities ranks between O-MSC Server and MRBT platform, after the MRBT platform is received the INVITE of O-MSC Server transmission, initiate in the 200OK message to O-MSCServer, carry this selected media formats of MRBT platform, inform the communication link selected media formats of this foundation of O-MSC Server from the MRBT platform to calling terminal, set up the signalling interactive process that communication link will carry out the call capabilities negotiation thereby reduce, shorten the response time of play multimedia ring-back tone.
Not only ISDN User Part can be adopted between O-MSC Server of the present invention and the T-MSC Server, also other agreements can be adopted.
Because audible ringing tone service of the present invention is the audible ringing tone service of being enjoyed by terminal called customization, calling terminal, whether support that with the attribute of calling terminal and the communication network at calling terminal place multimedia audible ringing tone is relevant so play the processing rule of voice ring-back tone and play multimedia ring-back tone, and whether support multimedia audible ringing tone irrelevant with the attribute of terminal called and the communication network at terminal called place.Different calling terminals are realized the regular as follows of dissimilar ring-back tones in different communication network:
When calling terminal is the 2G terminal, the communication network at calling terminal place is 2G, and the present invention can play the voice ring-back tone to calling terminal; When calling terminal is the 2G terminal, the communication network at calling terminal place is the 3G communication network, and the present invention can play the voice ring-back tone to calling terminal; When calling terminal is the 3G communication network terminal, the communication network at calling terminal place is 2G, and the present invention can play the voice ring-back tone to calling terminal; When calling terminal is the 3G communication network terminal, the communication network at calling terminal place is the 3G communication network, and no matter the network at terminal called place is 3G network or 2G network, and the present invention can give calling terminal play multimedia ring-back tone.
In 3G network, when calling terminal and terminal called are conversed, if calling terminal is the network at 3G communication network terminal and calling terminal place is the 3G communication network, and terminal called is 2G terminal or terminal called is but that 3G communication network terminal terminal called does not support that VP or terminal called are but that the network at 3G communication network terminal terminal called place is 2G, then calling terminal and terminal called can only carry out voice call, and can not carry out video calling.
The present invention not only can realize multimedia ring back tone service in the WCDMA system, and can realize multimedia ring back tone service in the 3G communication network of supporting the multimedia messages transmission.
The present invention can realize multimedia ring back tone service in the 3G communication network, when adopting the present invention to realize multimedia ring back tone service, there is not the alternative channel between calling terminal and the terminal called, can solves the call capabilities negotiation of branch section termination and the charging problem in the calling procedure effectively.
Simultaneously, when the present invention is the 2G terminal when terminal called, perhaps terminal called is but that 3G communication network terminal terminal called does not support multimedia video to call out, perhaps terminal called is but that the network at 3G communication network terminal terminal called place is when being 2G, the multimedia audible ringing tone service is provided also can for this Terminal Type, and guarantee that calling terminal and terminal called can normally converse, be that 2G terminal or the 3G communication network terminal of not supporting video call or terminal are but that the network at 3G communication network terminal terminal place is when being 2G, also can apply for multimedia ring back tone service, when the 3G communication network terminal of supporting video call as the calling terminal dialing application multimedia ring back tone service the 2G terminal or when not supporting the 3G communication network terminal of video call, to this calling terminal play multimedia ring-back tone.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. system that realizes multimedia ring back tone service, comprise: third generation 3G communication network, it is characterized in that, this system also comprises: the multimedia audible ringing tone MRBT platform and the mobile services switching centre MSCServer that is provided with Video Interworking Gateway VIG function of the multimedia audible ringing tone of terminal in the storage 3G communication network, wherein
The MRBT platform links to each other with the multimedia gateway MGW of administration terminal in the 3G communication network by the MSC Server that is provided with the VIG function, the MSC Server that is provided with the VIG function is used for initiating a call to before the call through when terminal, carry out after call capabilities consults with calling terminal, foundation is passed through MGW, is provided with the communication link of the MSC Server of VIG function to the MRBT platform from terminal, and the communication link that the MRBT platform passes through to be set up is to the terminal plays multimedia audible ringing tone.
2. the system as claimed in claim 1 is characterized in that, described 3G communication network is a Wideband Code Division Multiple Access (WCDMA) WCDMA network.
3. the system as claimed in claim 1, it is characterized in that, when terminal call is connected, the MSC Server of the described VIG of being provided with function is used to remove the communication link from the MSC Server that is provided with the VIG function to the MRBT platform, foundation from the MSC Server that is provided with the VIG function by by the MSC Server under the calling terminal to by the communication link of calling terminal, carry out terminal and by the conversation of calling terminal.
4. a method that realizes multimedia ring back tone service is characterized in that, the MRBT platform of storage multimedia audible ringing tone is set and at the MSC of communication system network Server the VIG function is set at communication system network, and this method also comprises:
Before calling terminal initiates a call to call through to terminal called, carry out after call capabilities consults with calling terminal, be provided with the communication link of MSC Server foundation from MSC Server, the MGW of MRBT platform to calling terminal of VIG function, will send to calling terminal by communication link at the multimedia audible ringing tone by the terminal called setting of MRBT platform storage through being provided with the VIG function.
5. method as claimed in claim 4 is characterized in that, when the MSCServer of the described VIG of being provided with function sets up communication link, calling terminal is not chargeed.
6. method as claimed in claim 4 is characterized in that, during to the call through of terminal called, this method further comprises at calling terminal:
The MSC Server that is provided with the VIG function removes the communication link of MRBT platform to the MSCServer that is provided with the VIG function, foundation is provided with the communication link of the MSC Server of VIG function to terminal called, carry out calling terminal through being provided with the VIG function MSC Server and MGW to the conversation of terminal called.
7. method as claimed in claim 6, it is characterized in that, when the MSCServer of the described VIG of being provided with function set up the MSC Server that is provided with the VIG function to the communication link of terminal called, the MSC Server that is provided with the VIG function began to carry out this call charging to calling terminal.
8. method as claimed in claim 4 is characterized in that, before the MSC Server that is provided with the VIG function set up communication link, this method also comprised: determine that terminal called is provided with multimedia audible ringing tone and the paging step to terminal called at the MRBT platform.
9. method as claimed in claim 8 is characterized in that, described definite terminal called in the process that the MRBT platform is provided with multimedia audible ringing tone is:
Be provided with the attaching position register HLR of the MSC Server inquiry storage terminal called CAMEL-Subscription-Information of VIG function, HLR returns the indication terminal called is provided with multimedia audible ringing tone at the MRBT platform message for the MSC Server that is provided with the VIG function.
10. method as claimed in claim 4, it is characterized in that, to calling terminal media formats is set in the MSCServer that is provided with the VIG function, described will be to send to calling terminal according to set media formats at the multimedia audible ringing tone by the terminal called setting of MRBT platform storage.
11. method as claimed in claim 10 is characterized in that, described to calling terminal media formats to be set be to be provided with according to being provided with the MSC Server of VIG function and call capabilities negotiation result that calling terminal carries out;
Or according to the MSC Server that is provided with the VIG function calling terminal call capabilities rank the MRBT platform is provided with from MRBT platform being stored in advance of receiving.
CN2005100695887A 2005-05-16 2005-05-16 System and method for realizing multimedia ring back tone service Active CN1867002B (en)

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CN2005100695887A CN1867002B (en) 2005-05-16 2005-05-16 System and method for realizing multimedia ring back tone service
EP06741882A EP1855475A4 (en) 2005-05-16 2006-05-16 System for realizing multimedia ring back tone service and method thereof
PCT/CN2006/000994 WO2006122496A1 (en) 2005-05-16 2006-05-16 System for realizing multimedia ring back tone service and method thereof
US11/626,803 US7912198B2 (en) 2005-05-16 2007-01-24 System and method for implementing multimedia ring back tone service

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CN100486368C (en) * 2007-02-02 2009-05-06 周洋 Data provision platform
CN104144263A (en) * 2013-05-10 2014-11-12 中国电信股份有限公司 Method and device for reporting key information during ringtone playing

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CN1545346A (en) * 2003-11-13 2004-11-10 中国移动通信集团公司 Method for providing individualized ring back tone in mobile intelligent network system
CN1556645A (en) * 2004-01-02 2004-12-22 中兴通讯股份有限公司 System and method for providing individuality ring back tone business in yonger generation network

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1545346A (en) * 2003-11-13 2004-11-10 中国移动通信集团公司 Method for providing individualized ring back tone in mobile intelligent network system
CN1556645A (en) * 2004-01-02 2004-12-22 中兴通讯股份有限公司 System and method for providing individuality ring back tone business in yonger generation network

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