CN1288935C - Implement method for listenning in self made ring back tone through calling user - Google Patents
Implement method for listenning in self made ring back tone through calling user Download PDFInfo
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- CN1288935C CN1288935C CN 03155239 CN03155239A CN1288935C CN 1288935 C CN1288935 C CN 1288935C CN 03155239 CN03155239 CN 03155239 CN 03155239 A CN03155239 A CN 03155239A CN 1288935 C CN1288935 C CN 1288935C
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Abstract
The present invention provides a realizing method for calling users to listen to self-made ring back tones. The method comprises steps that a calling party initiates a call towards a called party, and a mobile service switching center MSC establishes a route to the called party; after the mobile service switching center MSC receives a ring message from the called party, the original ring back tones are suppressed, and meanwhile, signaling is sent to a color ring back tone service node CRSN; the color ring back tone service node CRSN plays ring back tones which are made by the calling party; the color ring back tone service node CRSN stops playing the ring back tones after the called party responds, and the mobile service switching center MSC realizes a connection to the calling party so that the calling party starts talking to the called party. In the present invention, the mobile switching center is updated through increasing the color ring back tone service nodes in the existing mobile network so that the calling party can hear the ring back tones made by the calling party when the calling party calls the called party. Therefore, the present invention has the advantages that the individuation of the calling party is enhanced, the flexibility of the ring back tone service is improved, and the types of services of telecommunication operators are enriched.
Description
Technical field
The invention belongs to mobile network's technical field, relate to a kind of method that realizes calling subscriber to listen to self-made ring back sound specifically.
Background technology
Audible ringing tone service is a business that allows the cellphone subscriber for own customizing ring-back tone.The ring-back tone of this customization can be one section interesting to listen to music, also can be one section recording.The user makes ring-back tone can be selected service provider (SP:Service Provider) or carrier customization by the INTERNET network on corresponding website music by oneself, also the music of the own editing of user can be stored on the website, can also record user's voice or one section music by dialing special audible ringing tone service access code.
At present, prior art is when calling user dials has been applied for the called subscriber of audible ringing tone service, and the ring-back tone of hearing is exactly music or the recording that this called subscriber selects.
The concrete technical scheme of its prior art is as follows:
In existing network, by audible ringing tone service node CRSN and attaching position register HLR and mobile services switching centre MSC Signalling exchange taking place obtains called roaming number, and judge by audible ringing tone service node CRSN whether called be the customizing ring-back tone user, when the address perfect information of receiving that called mobile services switching centre MSC returns, trigger the audible ringing tone service logic, give calling subscriber's playing RBT.
Obviously, the calling subscriber at call request during the user of audible ringing tone service, can only passively listen to music or the recording of this user for its customization.Like this, called individual character is just forced at caller, and the calling subscriber is unwilling to accept probably, also can't refuse, unless on-hook.
Summary of the invention
The present invention proposes a kind of method that realizes calling subscriber to listen to self-made ring back sound, the problem that has the ring-back tone of listening to called custom-made that the calling subscriber can only be passive when calling out in the technology and can't listen to the self-control ring-back tone is arranged with solution.
For addressing the above problem, it is as follows to the invention provides three kinds of solutions:
1, a kind of method that realizes calling subscriber to listen to self-made ring back sound, the method includes the steps of:
A, caller make a call to called, are obtained to called routing iinformation by caller mobile services switching centre MSC;
B, caller mobile services switching centre MSC send signaling to Ring Back Tone service node CRSN according to the described routing iinformation of step a, judge that according to the parameter in the signaling loopback signaling in back is to caller mobile services switching centre MSC by this Ring Back Tone service node CRSN; Caller mobile services switching centre MSC sends signaling to called mobile services switching centre MSC, the loopback signaling was to caller mobile services switching centre MSC after this called mobile services switching centre MSC received called ALERTING message, restrain original ring-back tone simultaneously, send signaling to Ring Back Tone service node CRSN, by the homemade ring-back tone of this Ring Back Tone service node CRSN playing and calling by caller mobile services switching centre MSC again;
Behind c, the called party answer, called mobile services switching centre MSC sends signaling to caller mobile services switching centre MSC, send signaling to Ring Back Tone service node CRSN by caller mobile services switching centre MSC, this Ring Back Tone service node CRSN stops playing RBT, the mobile services switching centre of caller simultaneously MSC is routed to caller, and caller and called the beginning are conversed.
2, a kind of method that realizes calling subscriber to listen to self-made ring back sound, the method includes the steps of:
A, caller make a call to called, are obtained to called routing iinformation by caller mobile services switching centre MSC;
B, caller mobile services switching centre MSC send and comprise the signaling of the described routing iinformation of step a to Ring Back Tone service node CRSN, judge that according to the parameter in the signaling loopback signaling in back is to called mobile services switching centre MSC by this Ring Back Tone service node CRSN, the loopback signaling was to Ring Back Tone service node CRSN after this called mobile services switching centre MSC received called ALERTING message, restrain original ring-back tone simultaneously, send signaling to caller mobile services switching centre MSC, by the homemade ring-back tone of this Ring Back Tone service node CRSN playing and calling by Ring Back Tone service node CRSN again;
Behind C, the called party answer, called mobile services switching centre MSC sends signaling to Ring Back Tone service node CRSN, this Ring Back Tone service node CRSN stops concurrent the delivering letters of playing RBT to be made to caller mobile services switching centre MSC, MSC is routed to caller by the caller mobile services switching centre, and caller and called the beginning are conversed.
3, a kind of method that realizes calling subscriber to listen to self-made ring back sound, the method includes the steps of:
A, caller make a call to called, are obtained to called routing iinformation by caller mobile services switching centre MSC;
B, caller mobile services switching centre MSC according to the described routing iinformation of step a send initialization address message IAI signaling via called mobile services switching centre MSC to Ring Back Tone service node CRSN, judge that according to the parameter in the initialization address message IAI signaling back loopback initialization address message IAI signaling is to called mobile services switching centre MSC by this Ring Back Tone service node CRSN; Called mobile services switching centre MSC restrains original ring-back tone after receiving called ALERTING message, and loopback address perfect information ACM signaling is to caller mobile services switching centre MSC, called mobile services switching centre MSC sends address perfect information ACM signaling to Ring Back Tone service node CRSN, by the homemade ring-back tone of this Ring Back Tone service node CRSN playing and calling;
Behind c, the called party answer, called mobile services switching centre MSC sends signaling to Ring Back Tone service node CRSN, this Ring Back Tone service node CRSN stops playing RBT, be routed to caller by called mobile services switching centre MSC via caller mobile services switching centre MSC, caller and called the beginning are conversed.
By increasing the Ring Back Tone service node, upgrading mobile switching centre makes caller call out when called the ring-back tone that can uppick oneself customizes in prior mobile network in the present invention.Thereby realized " I customization, I enjoy ", strengthened calling subscriber's the personalization and the flexibility of audible ringing tone service, also enriched the class of business of telecom operators simultaneously.
Description of drawings
Fig. 1 is the method for the invention flow chart;
Description of drawings
Fig. 1 is the method for the invention flow chart;
Fig. 2 is the professional networking schematic diagram of the embodiment of the invention one;
Fig. 3 is the specific implementation flow chart of the embodiment of the invention one;
Fig. 4 is the professional networking schematic diagram of the embodiment of the invention two;
Fig. 5 is the specific implementation flow chart of the embodiment of the invention two;
Fig. 6 is the professional networking schematic diagram of the embodiment of the invention three;
Fig. 7 is the specific implementation flow chart of the embodiment of the invention three.
Specific implementation method
Embodiment one
As shown in Figure 2, be the professional networking schematic diagram of the embodiment of the invention one, mainly by the gateway GMSC of mobile switching centre (Gate of Mobile Switching Center), mobile services switching centre MSC (Mobile-service Switching Center), Ring Back Tone service node CRSN (ColorRing Service Node) and attaching position register HLR (Home Locate Register) at CDMA network CDMA (CodeDivision Multiple Access).
Wherein: in cdma network, be based on the TUP layer between (G) MSC and MSC, the CRSN and carry out information interaction.
Mobile services switching centre MSC mainly finishes Service Switching Function and CCF;
Ring Back Tone service node CRSN is for providing the equipment of ring-back tone voice resource;
Attaching position register HLR is mainly used in the essential information of preserving mobile phone, and when mobile phone power-on or position change, attaching position register HLR sends to mobile services switching centre MSC with these information.
As shown in Figure 1, be the framework flow chart of the method for the invention specific implementation; As shown in Figure 3, be the specific implementation flow chart of the embodiment of the invention one; Specific implementation is carried out according to following steps:
One, begins to call out
After the calling subscriber A that has customized audible ringing tone service called out called subscriber B, originating switch MSC sent LOCREQ[B-MDN] signaling is to attaching position register HLR, HLR loopback locreq[B-TLDN] signaling, thus caller acquisition called subscriber's number information.
Two, CRSN judges whether caller is the contracted user
Originating switch MSC sends IAI[A-MDN to called end office MSC, B-TLDN] signaling, after called end office MSC receives this signaling, send IAI[A-MDN to CRSN] signaling, judge that according to A-MDN whether calling subscriber A is the contracted user of customization of ring back tone service by CRSN, if not then returning normal IAI message, continue original call treatment; If the contracted user, then loopback increases the IAI[prefix+A-MDN of prefix before A-MDN] signaling is to called end office.
Three, the homemade ring-back tone of CRSN playing and calling
After called end office MSC received the ALERTING message of called subscriber B, loopback ACM signaling was restrained original ring-back tone simultaneously to originating switch MSC, and sent the ACM signaling to Ring Back Tone service node CRSN, by the ring-back tone of this Ring Back Tone service node CRSN playing and calling oneself customization.
Four, CRSN stops playing RBT, stops call, and begins conversation
After called subscriber B replys, called end office sends the ANM signaling to Ring Back Tone service node CRSN, and CRSN stops playing RBT, and called end office MSC sends the ANM signaling to originating switch MSC simultaneously, send out connect by originating switch MSC and be routed to caller, caller and called the beginning are conversed.
If called dont answer surpasses the time that system is provided with, then stop playing RBT, this time call interruption by Ring Back Tone service node CRSN.
Embodiment two
As shown in Figure 4, be the professional networking schematic diagram of the embodiment of the invention two at cdma network.As shown in Figure 5, be the specific implementation flow chart of the embodiment of the invention two; Specific implementation is carried out according to following steps:
One, begins to call out
After the calling subscriber A that has customized audible ringing tone service called out called subscriber B, originating switch MSC sent LOCREQ[B-MDN] signaling is to attaching position register HLR, HLR loopback locreq[B-TLDN] signaling, thus caller acquisition called subscriber's number information.
Two, CRSN judges whether caller is the contracted user
Originating switch MSC sends IAI[A-MDN to CRSN] signaling, judge that according to A-MDN whether calling subscriber A is the contracted user of customization of ring back tone service, if not then returning normal IAI message, continues original call treatment by CRSN; If contracted user, then loopback IAI[prefix+A-MDN] signaling is to originating switch.
Three, the homemade ring-back tone of CRSN playing and calling
Originating switch MSC sends IAI[A-MDN, B-TLDN to called end office MSC] signaling, after called end office MSC received the ALERTING message of called subscriber B, loopback ACM signaling was restrained original ring-back tone simultaneously to originating switch MSC; Originating switch MSC sends the ACM signaling to Ring Back Tone service node CRSN, by the ring-back tone of this Ring Back Tone service node CRSN playing and calling oneself customization.
Four, CRSN stops playing RBT, stops call, and begins conversation
After called subscriber B replys, called end office sends the ANM signaling to originating switch MSC, sends the ANM signaling to Ring Back Tone service node CRSN by originating switch MSC again, and CRSN stops playing RBT, simultaneously send out connect by originating switch MSC and be routed to caller, caller and called the beginning are conversed.
Embodiment three
As shown in Figure 6, be the professional networking schematic diagram of the embodiment of the invention three at cdma network.As shown in Figure 7, be the specific implementation flow chart of the embodiment of the invention three; Specific implementation is carried out according to following steps:
Wherein step 1 is same as the previously described embodiments, is not repeated herein.
Two, CRSN judges whether caller is the contracted user
Originating switch MSC sends IAI[A-MDN to CRSN] signaling, judge that according to A-MDN whether calling subscriber A is the contracted user of customization of ring back tone service, if not then returning normal IAI message, continues original call treatment by CRSN; If contracted user, then loopback IAI[prefix+A-MDN] signaling is to called end office.
Three, the homemade ring-back tone of CRSN playing and calling
After called end office MSC receives the ALERTING message of called subscriber B, restrain original ring-back tone, and send the ACM signaling to Ring Back Tone service node CRSN, and receive loopback originating switch MSCACM signaling after the ACM signaling by this Ring Back Tone service node CRSN, begin the ring-back tone that playing and calling oneself customizes simultaneously.
Four, CRSN stops playing RBT
After called subscriber B replied, called end office MSC sent the ANM signaling to Ring Back Tone service node CRSN, and CRSN stops playing RBT, and CRSN sends the ANM signaling to originating switch MSC, sent out connect by originating switch MSC and was routed to caller, and caller and called the beginning are conversed.
Above-mentioned three embodiment equally also are applicable to global system for mobile communications (GSM:GlobalSystem for Mobile communications), just are based on the ISUP layer between (G) MSC and MSC, the CRSN in this GSM network and carry out information interaction; In addition, except in the signalling interactive process of (G) MSC and HLR, LOCREQ[B-MDN] signaling is corresponding to SRI[B-MSISDN in the GSM network] signaling; And locreq[B-TLDN] SRI_Ack[B-MSRN in the corresponding GSM network of signaling] beyond the signaling, other all are suitable for.
The invention provides a kind of method that realizes calling subscriber to listen to self-made ring back sound, its be in prior mobile network by increasing the Ring Back Tone service node, upgrading mobile switching centre makes caller call out when called the ring-back tone that can uppick oneself customizes.Thereby realized " I customization, I enjoy ", also strengthened calling subscriber's the personalization and the flexibility of audible ringing tone service, also enriched the class of business of telecom operators simultaneously.
Claims (6)
1, a kind of method that realizes calling subscriber to listen to self-made ring back sound, it is characterized in that: the method includes the steps of:
A, caller make a call to called, are obtained to called routing iinformation by caller mobile services switching centre MSC;
B, caller mobile services switching centre MSC send signaling to Ring Back Tone service node CRSN, judge that according to the parameter in the signaling loopback signaling in back is to caller mobile services switching centre MSC by this Ring Back Tone service node CRSN; Caller mobile services switching centre MSC sends signaling to called mobile services switching centre MSC according to the described routing iinformation of step a, the loopback signaling was to caller mobile services switching centre MSC after this called mobile services switching centre MSC received called ALERTING message, restrain original ring-back tone simultaneously, send signaling to Ring Back Tone service node CRSN, by the homemade ring-back tone of this Ring Back Tone service node CRSN playing and calling by caller mobile services switching centre MSC again;
Behind c, the called party answer, called mobile services switching centre MSC sends signaling to caller mobile services switching centre MSC, send signaling to Ring Back Tone service node CRSN by caller mobile services switching centre MSC, this Ring Back Tone service node CRSN stops playing RBT, the mobile services switching centre of caller simultaneously MSC is routed to caller, and caller and called the beginning are conversed.
2, a kind of method that realizes calling subscriber to listen to self-made ring back sound as claimed in claim 1 is characterized in that:
Also further comprise among the described step c: called dont answer then stops playing RBT according to predetermined conditions by Ring Back Tone service node CRSN, this time call interruption.
3, a kind of method that realizes calling subscriber to listen to self-made ring back sound, it is characterized in that: the method includes the steps of:
A, caller make a call to called, are obtained to called routing iinformation by caller mobile services switching centre MSC;
B, caller mobile services switching centre MSC send and comprise the signaling of the described routing iinformation of step a to Ring Back Tone service node CRSN, judge that according to the parameter in the signaling loopback signaling in back is to called mobile services switching centre MSC by this Ring Back Tone service node CRSN, the loopback signaling was to Ring Back Tone service node CRSN after this called mobile services switching centre MSC received called ALERTING message, restrain original ring-back tone simultaneously, send signaling to caller mobile services switching centre MSC, by the homemade ring-back tone of this Ring Back Tone service node CRSN playing and calling by Ring Back Tone service node CRSN again;
Behind C, the called party answer, called mobile services switching centre MSC sends signaling to Ring Back Tone service node CRSN, this Ring Back Tone service node CRSN stops concurrent the delivering letters of playing RBT to be made to caller mobile services switching centre MSC, MSC is routed to caller by the caller mobile services switching centre, and caller and called the beginning are conversed.
4, a kind of method that realizes calling subscriber to listen to self-made ring back sound as claimed in claim 3 is characterized in that:
Also further comprise among the described step c: called dont answer then stops playing RBT according to predetermined conditions by Ring Back Tone service node CRSN, this time call interruption.
5, a kind of method that realizes calling subscriber to listen to self-made ring back sound, it is characterized in that: the method includes the steps of:
A, caller make a call to called, are obtained to called routing iinformation by caller mobile services switching centre MSC;
B, caller mobile services switching centre MSC according to the described routing iinformation of step a send initialization address message IAI signaling via called mobile services switching centre MSC to Ring Back Tone service node CRSN, judge that according to the parameter in the initialization address message IAI signaling back loopback initialization address message IAI signaling is to called mobile services switching centre MSC by this Ring Back Tone service node CRSN; Called mobile services switching centre MSC restrains original ring-back tone after receiving called ALERTING message, and loopback address perfect information ACM signaling is to caller mobile services switching centre MSC, called mobile services switching centre MSC sends address perfect information ACM signaling to Ring Back Tone service node CRSN, by the homemade ring-back tone of this Ring Back Tone service node CRSN playing and calling;
Behind c, the called party answer, called mobile services switching centre MSC sends signaling to Ring Back Tone service node CRSN, this Ring Back Tone service node CRSN stops playing RBT, be routed to caller by called mobile services switching centre MSC via caller mobile services switching centre MSC, caller and called the beginning are conversed.
6, a kind of method that realizes calling subscriber to listen to self-made ring back sound as claimed in claim 5 is characterized in that:
Also further comprise among the described step c: called dont answer then stops playing RBT according to predetermined conditions by Ring Back Tone service node CRSN, this time call interruption.
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03155239 CN1288935C (en) | 2003-08-23 | 2003-08-23 | Implement method for listenning in self made ring back tone through calling user |
| JP2006529557A JP4874799B2 (en) | 2003-05-15 | 2004-05-17 | System and method for providing RBT (ringing tone) in a communication network |
| RU2005140545/09A RU2323539C2 (en) | 2003-05-15 | 2004-05-17 | System and method for providing tone signals of call return in a communication network |
| EP04733299A EP1705885B1 (en) | 2003-05-15 | 2004-05-17 | A system and method for providing rbt in communication network |
| PCT/CN2004/000499 WO2004102940A1 (en) | 2003-05-15 | 2004-05-17 | A system and method for providng rbt in communication network |
| EP07120478.8A EP1914970B1 (en) | 2003-05-15 | 2004-05-17 | System and method for providing customizable RingBack Tones in a communication network |
| KR1020057021812A KR100725216B1 (en) | 2003-05-15 | 2004-05-17 | A system and method for providing rbt in communication network |
| CA2523909A CA2523909C (en) | 2003-05-15 | 2004-05-17 | A system and method for providing rbt in communication network |
| IN923DEN2012 IN2012DN00923A (en) | 2003-05-15 | 2004-05-17 | |
| US11/274,939 US7889856B2 (en) | 2003-05-15 | 2005-11-15 | System and method for providing RBT in communication network |
| JP2010003407A JP5208977B2 (en) | 2003-05-15 | 2010-01-08 | System and method for providing a ringing tone |
| US12/877,483 US8824657B2 (en) | 2003-05-15 | 2010-09-08 | Providing ring back tones in a communication network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03155239 CN1288935C (en) | 2003-08-23 | 2003-08-23 | Implement method for listenning in self made ring back tone through calling user |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1520211A CN1520211A (en) | 2004-08-11 |
| CN1288935C true CN1288935C (en) | 2006-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03155239 Expired - Lifetime CN1288935C (en) | 2003-05-15 | 2003-08-23 | Implement method for listenning in self made ring back tone through calling user |
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| Country | Link |
|---|---|
| CN (1) | CN1288935C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7889856B2 (en) | 2003-05-15 | 2011-02-15 | Huawei Technologies Co., Ltd. | System and method for providing RBT in communication network |
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| US7215960B2 (en) * | 2004-12-30 | 2007-05-08 | Lucent Technologies Inc. | Hand-off technique for a wireless network |
| CN1314257C (en) * | 2005-04-08 | 2007-05-02 | 侯万春 | Apparatus and method for realizing main calling set ring back tone based on personalized ring back tone |
| CN1852362B (en) * | 2005-08-15 | 2012-05-23 | 华为技术有限公司 | Method for dialed's providing indication information to dialing |
| US8315627B2 (en) * | 2005-10-13 | 2012-11-20 | Nokia Corporation | Pro-active access handling in a multi-access network environment |
| CN100463470C (en) * | 2005-10-13 | 2009-02-18 | 中国移动通信集团公司 | Method for providing prompt information to mobile communication device by mobile communication network |
| CN100454946C (en) * | 2005-10-21 | 2009-01-21 | 中国移动通信集团公司 | Method for broadcasting personal ringing on called terminal |
| US7801293B2 (en) * | 2005-11-10 | 2010-09-21 | Alcatel-Lucent Usa Inc. | Ringback tone preference information to assist selection of ringback tone |
| GB2432744B (en) * | 2005-11-24 | 2011-01-12 | Data Connection Ltd | Telephone call processing method and apparatus |
| CN100550940C (en) * | 2005-12-20 | 2009-10-14 | 华为技术有限公司 | The system and method that is used for setting individual audible ringing message breath |
| CN1992918B (en) * | 2005-12-28 | 2010-06-16 | 中兴通讯股份有限公司 | Equipment of Service Control Point of intelligent network |
| CN101026652B (en) * | 2006-02-22 | 2010-10-13 | 中国电信股份有限公司 | Communication network system and method for providing calling multimedia ring business |
| CN101026653B (en) | 2006-02-24 | 2011-08-24 | 华为技术有限公司 | System and method for realizing colour image business |
| CN100499709C (en) * | 2006-03-03 | 2009-06-10 | 华为技术有限公司 | Method for giving individual ring-back tone as a present |
| CN101039350B (en) * | 2006-03-15 | 2011-06-15 | 中国电信股份有限公司 | System and method for realizing telecom service of specific returning tone and service triggering part thereof |
| CN101043548B (en) * | 2006-03-20 | 2011-05-11 | 中兴通讯股份有限公司 | System for realizing PLUS color bell tone and method thereof |
| CN100463471C (en) * | 2006-05-17 | 2009-02-18 | 中国移动通信集团公司 | Method for realizing video color ring broadcast |
| CN100512465C (en) | 2007-02-07 | 2009-07-08 | 华为技术有限公司 | Method, system and apparatus for realizing echo-bell service |
| WO2008154837A1 (en) * | 2007-06-21 | 2008-12-24 | Huawei Technologies Co., Ltd. | Method and system for implementing crbt |
| CN101340629B (en) | 2007-07-04 | 2013-10-09 | 华为技术有限公司 | Method, system and apparatus for implementing multimedia customized ring back tone service |
| CN101159891B (en) * | 2007-08-17 | 2010-09-08 | 华为技术有限公司 | Voice activation detection control method and controll equipment thereof |
| CN101150758B (en) * | 2007-09-24 | 2011-10-05 | 北京市佳贝林科技有限公司 | Playing method based caller CRBT or caller video CRBT |
| CN101409952B (en) | 2007-10-09 | 2012-11-21 | 华为技术有限公司 | Method and apparatus for implementing multimedia color vibration business and filtrating color vibration |
| CN101808099A (en) * | 2010-03-17 | 2010-08-18 | 中兴通讯股份有限公司 | Method for nesting multi-media in click-to-dial process and click-to-dial business system |
| CN102413434B (en) * | 2010-09-26 | 2014-07-30 | 联想(北京)有限公司 | Method for playing media file, communication terminal thereof and electrical equipment |
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- 2003-08-23 CN CN 03155239 patent/CN1288935C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7889856B2 (en) | 2003-05-15 | 2011-02-15 | Huawei Technologies Co., Ltd. | System and method for providing RBT in communication network |
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| CN1520211A (en) | 2004-08-11 |
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