WO2008037190A1 - Method, system and equipment for realizing crbt copying - Google Patents

Method, system and equipment for realizing crbt copying Download PDF

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Publication number
WO2008037190A1
WO2008037190A1 PCT/CN2007/070292 CN2007070292W WO2008037190A1 WO 2008037190 A1 WO2008037190 A1 WO 2008037190A1 CN 2007070292 W CN2007070292 W CN 2007070292W WO 2008037190 A1 WO2008037190 A1 WO 2008037190A1
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WO
WIPO (PCT)
Prior art keywords
crbt
request
mrs
copy
client
Prior art date
Application number
PCT/CN2007/070292
Other languages
English (en)
French (fr)
Inventor
Qingchun Shen
Hui Yu
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP07764220A priority Critical patent/EP1944954A4/en
Publication of WO2008037190A1 publication Critical patent/WO2008037190A1/zh
Priority to US12/172,794 priority patent/US7471783B1/en
Priority to US12/271,143 priority patent/US8170194B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42017—Customized ring-back tones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42034—Calling party identification service
    • H04M3/42059—Making use of the calling party identifier
    • H04M3/42068—Making use of the calling party identifier where the identifier is used to access a profile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42085—Called party identification service
    • H04M3/42102—Making use of the called party identifier
    • H04M3/4211—Making use of the called party identifier where the identifier is used to access a profile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42136—Administration or customisation of services
    • H04M3/42153—Administration or customisation of services by subscriber

Definitions

  • the present invention relates to a multimedia color ring back tone service, and more particularly to a method, system and apparatus for implementing color ring back tone copying. Background of the invention
  • NGN Next Generation Network
  • the multimedia ring back tone service is a service that is customized by the called user to provide the user with a pleasant music, a greeting, a picture or a video image instead of the normal ring back tone. Therefore, if the called user is a CRBT user, the calling user will hear or see the personalized ring tone customized by the called user when dialing the called user's phone.
  • SIP session protocol
  • FIG. 1 is a schematic structural diagram of a system networking for playing a ring back tone for a calling user in a NGN network in the prior art.
  • the system includes: network side and client side.
  • the network side includes: SoftSwitch, Service Attribute Register (SHLR), Application Server (AS), Media Resource Server (MRS), File Transfer Protocol (FTP) server, CRBT platform, and CRBT platform database.
  • the client includes The calling user and the called user are called the calling party and the called party respectively. Among them, the called is a ring back tone user.
  • Softswitch is the core device of the NGN network control layer. It adopts softswitch technology.
  • the SHLR stores the user's logical number, physical number, and mapping relationship between the two, and stores information such as the user's intelligent service subscription attributes. It is a comprehensive centralized user database.
  • the AS mainly provides a service execution environment and is responsible for providing value-added services for multiple networks accessing the NGN network.
  • the MRS provides the feature resource capability for the AS to implement interaction with the user, complete the service function, and play the CRBT.
  • the FTP server is used to store large-capacity voice file resources. When there are few voice file resources, you do not need to use an FTP server.
  • the CRBT platform mainly provides unified functional interfaces such as CRBT data management and operation management.
  • the database of the ring tone platform stores information about the ring tones.
  • FIG. 2 is a flow chart of a method for playing a CRBT for a calling user in the prior art.
  • the caller sends a request message to the AS through the softswitch.
  • the AS sends the called number to the softswitch, and the softswitch routes to the called party. If the called party is connected, the ringing message is returned to the AS through the softswitch.
  • the AS receives the ringing message, queries the customized ring back tone information from the database of the CRBT platform, and sends a message requesting to play the CRBT to the MRS.
  • the MRS obtains the CRBT voice file, establishes a media channel with the calling party, and plays the ring back tone to the calling party.
  • the AS After the called party picks up the phone and notifies the AS, the AS sends a message to the MRS to end the ring back tone playback, the MRS ends the ring tones playback, and then the calling party and the called party perform media negotiation and make a normal call.
  • the calling party is a CRBT user, and the calling party likes the ring tones of the called party very much when answering the ring tones, and wants to use the ring tones of the called as their own ring tones
  • the calling party can only search and download through the network.
  • the process of obtaining, or sometimes not knowing the name of the ring tones or knowing the name of the ring tones, but not knowing how to download, etc., will cause the caller to not get the favorite ones immediately.
  • the ring tones called wasting the time of the caller and increasing the regret of the caller. Summary of the invention
  • a method for implementing CRBT replication is provided, and on the other hand, a system and device for implementing CRBT replication are provided, so that the client can obtain the CRBT that he likes while receiving the CRBT.
  • a media resource server In the method for implementing CRBT replication provided by the embodiment of the present invention, a media resource server
  • the MRS plays the CRBT to the client, and obtains the CRBT copy request input by the client, and the method includes: the application server AS receives the obtained CRBT copy request sent by the MRS; and the AS sends the CRBT copy to the CRBT platform according to the received CRBT copy request.
  • the request for information copies an instruction of the CRBT, and the instruction is used to instruct the CRBT platform to copy the CRBT requested to be copied into the information base of the client.
  • the media resource server MRS is configured to: when playing the CRBT to the client, obtain the CRBT copy request input by the client, and forward the obtained CRBT copy request to the application server AS;
  • the AS is configured to send, to the CRBT platform, an instruction for requesting to copy the CRBT that carries the CRBT replication information according to the received CRBT forwarding request that is forwarded by the MRS;
  • the CRBT platform is configured to receive the instruction from the AS, and copy the CRBT requested to be copied into the information base of the client according to the received instruction.
  • An application server provided by the embodiment of the present invention includes: an application processing module, configured to send a request for playing a ring back tone and receive a number to a media resource server MRS, and receive a CRBT copy request input by a client forwarded by the MRS, according to the received
  • the CRBT copy request sends an instruction to copy the CRBT requesting the CRBT replication information to the CRBT platform.
  • a media resource server MRS provided by the embodiment of the present invention includes: a service processing module, configured to receive a ring back tone broadcast and receive a number from an application server AS Requesting, according to the request for playing and receiving the ring tones, sending a control command to the playback/receipt module; receiving the CRBT copy request of the client returned by the playback/receipt module, and transmitting the CRBT copy request to the AS;
  • the playback/receiving module is configured to receive a control command from the service processing module, and play a CRBT to the client according to the received control command, obtain a CRBT copy request input by the client, and send the obtained CRBT copy request to the service. Processing module.
  • the CRBT when the CRBT is played to the client through the MRS, if the CRBT copy request input by the client is obtained, the obtained CRBT copy request is forwarded to the application server AS, and the AS receives the The CRBT copy request is sent to the CRBT platform to send a CRBT copy request request to copy the CRBT; the CRBT platform copies the CRBT requesting the copy to the client information base according to the received command. This allows the client to instantly get the ringtone received, saving time.
  • FIG. 1 is a schematic structural diagram of a system for playing a CRBT for a calling user in the prior art
  • FIG. 2 is a flowchart of a method for playing a CRBT for a calling user in the prior art
  • FIG. 3 is a flowchart of a method for playing a CRBT and implementing CRBT replication for a ring tones user;
  • FIG. 4 is a schematic structural diagram of a system for playing a color ring tone for a ring tones user and implementing a CRBT copy in the embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of an apparatus of a media resource server according to an embodiment of the present invention. Mode for carrying out the invention
  • the MRS plays the CRBT to the client, obtains the CRBT copy request input by the client, and forwards the obtained CRBT copy request to the AS, and the AS according to the received color.
  • the bell copy request sends an instruction to copy the CRBT to the CRBT platform; the CRBT platform copies the CRBT requesting the copy to the information base of the client according to the received command.
  • the client is generally called the ring back tone user.
  • the MRS sends a request message for the CRBT to play and receive the number.
  • the MRS recognizes the request message, plays the CRBT to the client, and when the client inputs the CRBT copy request, acquires the request message, completes the number collection, and the uninterrupted CRBT is played.
  • the interface protocol between the AS and the MRS is extended by using the corresponding parameters defined in the voice server-based event packet (BAU) specification, so that the AS can send the CRBT to play and receive the request message.
  • the MRS is able to recognize the request message.
  • the receiving interface does not interrupt the transmission of the media stream at the same time as the receiving interface, that is, the playback is not interrupted, and the MRS receives and receives the above-mentioned CRBT. After the request message of the number, the number can be received, and during the collection process, the ring tone is played continuously.
  • the SIP message in the NGN network is taken as an example, and the BAU event packet is carried in the SIP message to complete the extension of the interface protocol between the AS and the MRS, and the functions of the playback interface and the receiving interface of the MRS are pre-expanded. , so that the receiving interface is at the same time as the receiving number, the playback interface does not interrupt the ring tones.
  • FIG. 3 is a flowchart of a method for receiving a color ring tone and implementing a color ring tone copy when a calling color ring tone user calls a called color ring tone user according to an embodiment of the present invention.
  • the following tube is called the calling ring tones user, and the called ring tones are called, and the calling ring tones and the called ring tones are collectively referred to as clients.
  • the process includes the following steps:
  • Step 301 The calling party sends a SIP INVITE call request carrying the called number to the softswitch. Message, request to call the called.
  • Step 302 The softswitch determines, by the SHLR, that the called ring tones user, adds the CRBT attribute flag to the SIP INVITE call request message, and then forwards the SIP INVITE call request message carrying the CRBT attribute flag to the AS.
  • Step 303 to step 304 after receiving the SIP INVITE call request message, the AS authenticates the called party, and after the authentication is passed, the AS sends the called number to the softswitch through the SIP INVITE message, and the softswitch sends the route. To the called party, connect to the called party through the SIP INVITE message.
  • Step 305 to step 306 if the called party is connected, the SIP 180 ringing message is returned to the softswitch, and the softswitch forwards the received SIP 180 ringing message to the AS.
  • Step 307 After receiving the SIP 180 ringing message, the AS learns the called CRBT user according to the SIP INVITE call request message that carries the CRBT attribute flag received in step 303, and queries the user of the CRBT platform in the database of the CRBT platform.
  • the CRBT information after obtaining the CRBT code and parsing the path, sends a CR INVITE request message to the MRS for playing and receiving the ring back tone, and the message carries the calling information and the called ring back tone information.
  • the MRS is requested to play the ring back tone to the calling party, and the receiving number function for collecting the number to the calling party is started.
  • the BAU-based event packet is used to carry the corresponding information.
  • the PC event in the BAU event package is used, wherein the PC event supports prompting the playback interface (ip) parameter and the non-stop play (ni) parameter and the digital setting (dm) parameter, but does not support the number of loop playback (it) Parameter, interval play duration (iv) parameter.
  • the ip parameter is used to specify a playback file, that is, a file for specifying the voice of the ring tones.
  • the ni parameter is used to indicate whether the playback process is interrupted. If the value of ni is true (true), it means The ring back tone is played continuously. If the value is false (false), it means that the ring back tone playback process can be interrupted.
  • the it parameter is used to specify the maximum number of loops to play.
  • the iv parameter is used to specify the length of time for interval play, that is, the length of the middle interval during loop playback.
  • the dm parameter is used to identify the digital number of the valid button information.
  • the valid digits are "0 ⁇ 9, #, *". If dm is set to 91, the valid digits are 9 and 1. If dm is set to 25, the valid digits are 2 and 5, and so on.
  • the ring back tone is not interrupted before the called party picks up the phone, otherwise it will lose the purpose of ringing the ringing tone. Therefore, if the ringing tone is played while the ring tones are being played, the ring back tone needs to be played during the collecting process. Without interruption, the prior art protocols do not take into account the requirements in this regard, and therefore there is no provision for this.
  • the prior art protocols do not take into account the requirements in this regard, and therefore there is no provision for this.
  • the PC sub-event supports uninterrupted ring tones during the collection process. By defining, the AS and MRS can use and identify the extended PC sub-event.
  • the format of the SIP request message is:
  • the request start line method request URI SIP version number, where the method is the type of message to be executed, such as INVITE, BYE, etc., the request URI is the current address of the invited user, and the SIP version number is now set to SIP/2.0. , * indicates that there can be more than one field.
  • the voice file is file://welcome
  • the calling user After the called party rings, the calling user starts to listen to the ring tone file named file://welcome. During the process of receiving the ring back tone, the calling user can dial the key input, and the valid button numbers are 9 and 1.
  • the request start line of the SIP INVITE message carrying the extended PC sub-event of the BAU event packet is as follows:
  • the PA ring mode is played by the PA mode, and the calling party cannot perform the key dialing during the listening process.
  • the entity part of the SIP INVITE message can be consistent with the provisions in the prior art.
  • the above setting is only made for the request start line.
  • the specific settings for each parameter can be set according to the actual situation. The above is only an exemplary format description.
  • the AS stores the current calling information, the called information, and the called CRBT information, that is, the information including the calling number, the called number, and the called CRBT code.
  • Step 308 After receiving the SIP INVITE request message that the CRBT plays and receives the number, the MRS returns a SIP 200 OK response message to the AS.
  • Step 309 to step 310 the AS will carry the SIP 180 ringing message of the MRS media information. Sended to the softswitch, the softswitch forwards the SIP 180 ringing message to the calling party.
  • Step 311 The MRS obtains a CRBT voice file according to the received SIP ring INVITE request message of the CRBT, and establishes a media channel with the calling party, and plays the CRBT to the calling party through the extended playback interface, and establishes a receiving channel at the same time.
  • the MRS identifies and parses the SIP INVITE message according to a preset interface protocol. If the voice file is placed in the FTP server, the slave FTP server requests the voice file to be placed in the FTP server.
  • the CRBT voice file is obtained in the middle, otherwise the CRBT voice file is obtained directly from itself. In general, the voice file is obtained from the FTP server. Because the FTP server has a large capacity, it is suitable for storing voice files, and the FTP server is easy to upload voice files.
  • the MRS plays the ring back tone to the calling party through the playback interface.
  • the MRS can also play the video and audio files to the calling party; if the calling party only supports the audio, the MRS Play a pure audio ring to the calling party. At the same time, the MRS establishes a receiving channel with the client.
  • Step 312 If the calling party wants to copy the ring tone received, input the pre-agreed request to copy the service code of the CRBT, that is, send the CRBT copy request to the MRS. For example: If dm is set to 91, in the valid button range of dm, 99 can be preset as the service code for copying the CRBT.
  • Step 313 The MRS receives the CRBT copy request from the calling party, and sends the received CRBT copy request to the AS by using a notification (INFO) message to complete the receiving.
  • INFO notification
  • the ring back tone is played continuously during the collection process and after the number is received. That is, when receiving the CRBT copy request from the user, the receiving interface does not interrupt the media stream information sent to the client, that is, the ring back tone is played continuously.
  • the dual tone multi-frequency signal can be generated and sent, and the intermediate gateway can be forwarded through the media gateway (MG).
  • the MG can directly transmit the dual-tone multi-frequency signal to the MRS, or can also transmit the dual-tone multi-frequency signal to generate a real-time transport protocol (RTP) media stream or a real-time transmission control protocol (RTCP) media stream, so
  • RTP real-time transport protocol
  • RTCP real-time transmission control protocol
  • the CRBT copy request received by the MRS from the calling party may be: a dual tone multi-frequency signal, an RTP media stream, or an RTCP media stream.
  • the MRS can parse the received media stream or the dual tone multi-frequency signal to obtain a CRBT copy request input by the calling party, and send the obtained CRBT copy request to the AS through an INFO message.
  • Step 314 ⁇ Step 315 the AS returns a SIP 200 OK message in response to the INFO message, the AS identifies the CRBT copy request in the received INFO message, and after identifying that the caller wishes to copy the called CRBT, the AS to the CRBT
  • the platform sends a request for copying the CRBT to transmit the CRBT copy information.
  • the CRBT platform copies the CRBT code, the calling number and the called number of the CRBT requested in the command according to the CRBT copy information in the command.
  • the CRBT that requests the copy is copied to the information base of the calling party, and the CRBT code copy that requests the copy is copied and downloaded to the personal ring tone library of the calling party.
  • the ring tones that are requested to be copied are also the ring tones of the called party that the caller answers.
  • the instruction sent by the AS to the CRBT platform may be a Socket message based on a Transmission Control Protocol/Internet Protocol (TCP/IP), or may be a command based on a stored procedure, or may be based on a The single object access protocol (Soap) instructions, which specific instructions are to be based on the actual constraints of the ringtone platform.
  • TCP/IP Transmission Control Protocol/Internet Protocol
  • Soap The single object access protocol
  • Step 316 After the called party picks up the call, sends a SIP 200 OK message carrying the called information indicating that the off-hook is sent to the softswitch.
  • Steps 317 to 319 the softswitch sends a SIP 200 OK message with the called information to the AS.
  • the AS After receiving the SIP 200 OK message from the softswitch, the AS sends a SIP BYE message to the MRS to end the CRBT playback.
  • the MRS receives the message.
  • the SIP BYE message the CRBT playback is ended, and the SIP 200 OK message that has finished playback is returned to the AS.
  • Step 320 to step 321 the AS returns a SIP final response ACK message to the softswitch, and the soft The exchange sends a SIP final response ACK message to the called party.
  • step 301 to step 306 are the process of initiating a call to the called party to return a ringing message to the AS
  • steps 308 to 310 are the response of the MRS to the AS sending the message and the AS will ring after receiving the response.
  • the process of sending a message to the calling party, the steps 316 to 323 are the same as the flow of the call between the called party and the calling party and the calling party, which is completely consistent with the prior art corresponding process, and is not the content of the method of the embodiment of the present invention, but only An application scenario of the method in the embodiment of the present invention is described.
  • the flow of the embodiment of the present invention is step 307, step 311 to step 315. There is no certain relationship between step 313 and step 315 and step 316.
  • FIG. 4 is a schematic structural diagram of a system for implementing CRBT replication based on the method shown in FIG. 3 according to an embodiment of the present invention.
  • the system includes: a network side and a client.
  • the network side may include: a softswitch, an AS, an MRS, and a database of a ring back tone platform and a ring back tone platform.
  • the client includes: the calling ringtone user and the called ringtone user, respectively called the calling and called.
  • a softswitch configured to receive a call request message from the calling party that carries the destination address as the called number, and when the called party is a CRBT user through the SHLR, add a CRBT attribute flag to the received request message, and The call request message carrying the CRBT attribute flag is forwarded to the AS; the call request message carrying the called number returned by the AS is received, and the route is sent to the called party according to the request message; the ringing message returned by the called party is received, and the ringing is received. The message is returned to the AS.
  • the MRS sends a request message for playing and receiving the ring back tone to the MRS; receiving the CRBT copy request of the calling party forwarded by the MRS, identifying the CRBT copy request, and identifying the calling party
  • the CRBT request to transmit the CRBT replication information is requested to be copied to the CRBT platform; the message of the called offhook response is received, and the message ending the broadcast is sent to the MRS according to the message, and the MRS returned is received. End the playback response message, and send a message to the calling party to update the media information, so that
  • a database of the CRBT platform configured to receive a message obtained by the AS from the CRBT, and return a CRBT code to the AS according to the message.
  • the CRBT platform is configured to receive an instruction for requesting to copy the CRBT from the AS, perform CRBT replication according to the CRBT copy information in the command, and copy the called CRBT requesting the copy to the calling information database, that is, the CRBT code to be copied. Copy to the calling party's personal ringtone library.
  • the MRS is configured to receive a request message for playing and receiving a ring back tone from the AS, obtain a CRBT voice file according to the message, establish a media connection with the calling party, play a CRBT to the calling party, and obtain a CRBT requesting to copy the CRBT. Copying the request, forwarding the received CRBT copy request to the AS; receiving the message ending the play from the AS, and ending playing the CRBT to the caller according to the message.
  • the system may further include an FTP server for storing a large-capacity voice file resource for the MRS to call. That is, after receiving the request message of the CRBT playing and receiving the number of the AS, the MRS obtains the CRBT voice file from the FTP server.
  • the implementation process is not affected, but the information of the calling party cannot be found when the ring back tone platform performs the copying. Library, and give up copying.
  • the AS in the embodiment of the present invention may include: an application processing module, configured to send a request for playing a ring back tone and receive a number to the media resource server MRS, and receive the MRS.
  • the CRBT playback request input by the forwarded client identifies the CRBT playback request, and when the CRBT replication request is identified, sends a request for copying the CRBT that carries the CRBT replication information to the CRBT platform.
  • the MRS in the embodiment of the present invention may include: a play/receive module and a service processing module.
  • the service processing module is configured to receive a request for playing and receiving a ring back tone from the application server AS, and send a control instruction to the playback/receipt module according to the request for playing and receiving the ring tones; receiving the playback/receiving module
  • the CRBT copy request of the returned client sends the CRBT copy request to the AS.
  • the playback/receiving module is configured to receive a control command from the service processing module, and play a CRBT to the client according to the received control command, obtain a CRBT copy request input by the client, and send the obtained CRBT copy request to the service. Processing module.
  • the implementation process may be consistent with the process described in the method flow shown in FIG. 3 .
  • No need for creative labor you can transform a variety of specific implementations of MRS and AS, such as splitting or merging the above MRS and modules in AS, etc., no longer here.
  • the CRBT when the CRBT is played to the client through the MRS, if the CRBT copy request input by the client is obtained, the obtained CRBT copy request is forwarded to the application server AS, and the AS receives the The CRBT copy request is sent to the CRBT platform to send a CRBT copy request request to copy the CRBT; the CRBT platform copies the CRBT requesting the copy to the client information base according to the received command. This allows the client to instantly get the ringtone received, saving time.
  • the client does not need to perform tedious work such as network search and downloading, thereby further reducing the workload of the client. High user experience.
  • the client can obtain the favorite CRBT at the same time as the CRBT, the client can be copied without knowing the CRBT content information, such as the CRBT name, and the client cannot be notified because the client cannot know the CRBT content information.

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Description

实现彩铃复制的方法、 系统及装置
技术领域
本发明涉及多媒体彩铃业务， 尤其涉及实现彩铃复制的方法、 系统 及装置。 发明背景
随着网络的发展， 尤其随着下一代网络 （ NGN , Next General Network ) 时代的到来， 网络带宽不断增加、 能力不断增强、 功能不断 丰富， 因此通过 NGN网络可以为用户提供丰富多彩的电话回铃音， 例 如歌曲、 动画以及电影片段等， 充分满足用户的个性化需求。
用户通过申请开通多媒体彩铃业务， 便可定制上述各种个性化的电 话回铃音， 并成为彩铃签约用户， 筒称彩铃用户。 多媒体彩铃业务是一 项由被叫用户定制， 为主叫用户提供一段悦耳的音乐、 一段问候语、 图 片或者一段视频图像等来替代普通嘟嘟的回铃音的业务。 因此， 若被叫 用户为彩铃用户， 则主叫用户在拨打被叫用户的电话时， 会听到或看到 被叫用户定制的个性彩铃。下面以 NGN网络中基于初始会话协议（SIP ) 的消息实现为例， 对主叫用户呼叫被叫彩铃用户并接听彩铃的过程进行 详细描述。
参见图 1 ,图 1为现有技术 NGN网络中为主叫用户播放彩铃的系统 组网结构示意图。 该系统包括： 网络侧和客户端。 其中网络侧包括： 软 交换（SoftSwitch )、 业务属性寄存器（SHLR )、 应用服务器（ AS )、 媒 体资源服务器（MRS )、 文件传输协议（FTP )服务器、 彩铃平台以及彩 铃平台的数据库， 客户端包括主叫用户和被叫用户， 分别筒称主叫和被 叫。 其中， 被叫为彩铃用户。 软交换是 NGN 网络控制层的核心设备， 它采用软交换技术， 除了 提供丰富的固网基本电信业务、 补充业务以外， 还可以通过与各类业务 服务器配合， 向客户端提供多样化和增值的服务。 SHLR存储有用户的 逻辑号码、 物理号码， 以及两者间的映射关系， 同时存储有用户的智能 业务签约属性等信息， 是一个综合的集中用户数据库。
AS主要提供业务执行环境， 负责为接入 NGN网络的多种网络提供 增值业务。 MRS为 AS提供特征资源能力， 实现与用户的交互， 完成业 务功能及彩铃的播放功能。 FTP服务器用于存储大容量的语音文件资源， 当语音文件资源较少时， 可无需使用 FTP服务器。
彩铃平台主要提供统一的彩铃数据管理、 运营管理等功能接口。 彩 铃平台的数据库则存储有彩铃的相关信息。
基于上述系统实现为主叫用户播放彩铃的具体过程参见图 所示的 流程。
图 2为现有技术中为主叫用户播放彩铃的方法流程图。如图 2所示， 主叫通过软交换向 AS发送请求消息。 AS接收到该呼叫请求消息后， 将 被叫号码下发给软交换， 软交换路由到被叫， 被叫如果接通， 则通过软 交换向 AS返回振铃消息。 AS接收到振铃消息， 从彩铃平台的数据库中 查询用户定制的彩铃信息， 向 MRS发送请求播放彩铃的消息。 MRS获 取彩铃语音文件， 与主叫建立媒体通道， 向主叫播放彩铃。 被叫摘机应 答并通知 AS后， AS向 MRS发送结束彩铃播放的消息， MRS结束彩铃 播放， 然后主叫与被叫进行媒体协商， 并进行正常通话。
其中， 若主叫为彩铃用户， 并且在接听彩铃时， 主叫非常喜欢被叫 的彩铃，并想将被叫的彩铃作为自己的彩铃，则主叫只能通过网络搜索、 下载等一系列繁瑣的过程获取， 或者有时根本不知道彩铃名称或知道彩 铃名称却不知道如何下载等， 都会导致主叫无法即时得到自己喜欢的被 叫的彩铃， 浪费了主叫的时间并增加了主叫的遗憾。 发明内容
本发明实施例中一方面提供了实现彩铃复制的方法， 另一方面提供 了实现彩铃复制的系统及装置， 以便使客户端在接听彩铃的同时即可得 到自己喜欢的彩铃。
本发明实施例所提供的实现彩铃复制的方法中， 媒体资源服务器
MRS向客户端播放彩铃， 获取客户端输入的彩铃复制请求， 并包括： 应用服务器 AS接收到 MRS发送的所获取的彩铃复制请求； AS根据接收到的彩铃复制请求，向彩铃平台发送携带彩铃复制信息 的请求复制彩铃的指令， 所述指令用于指示彩铃平台将请求复制的彩铃 复制到客户端的信息库中。
本发明实施例所提供的实现彩铃复制的系统， 包括：
媒体资源服务器 MRS, 用于向客户端播放彩铃时， 获取客户端输入 的彩铃复制请求， 并将所获取的彩铃复制请求转发给应用服务器 AS;
AS, 用于根据接收到的 MRS转发的彩铃复制请求， 向彩铃平台发 送携带彩铃复制信息的请求复制彩铃的指令；
彩铃平台， 用于接收来自 AS的所述指令， 根据所接收的指令将请 求复制的彩铃复制到客户端的信息库中。
本发明实施例所提供的一种应用服务器， 包括： 应用处理模块， 用 于向媒体资源服务器 MRS发送彩铃播放并收号的请求，接收 MRS转发 的客户端输入的彩铃复制请求， 根据所接收的彩铃复制请求， 向彩铃平 台发送携带彩铃复制信息的请求复制彩铃的指令。
本发明实施例所提供的一种媒体资源服务器 MRS, 包括： 业务处理模块， 用于接收来自应用服务器 AS的彩铃播放并收号的 请求， 根据该彩铃播放并收号的请求， 向放音 /收号模块发送控制指令； 接收放音 /收号模块返回的客户端的彩铃复制请求，将该彩铃复制请求发 送给 AS;
放音 /收号模块， 用于接收来自业务处理模块的控制指令， 并根据所 接收的控制指令向客户端播放彩铃， 获取客户端输入的彩铃复制请求， 将所获取的彩铃复制请求发送给业务处理模块。
从上述方案可以看出， 本发明实施例中通过 MRS 向客户端播放彩 铃时， 若获取到客户端输入的彩铃复制请求， 则将所获取的彩铃复制请 求转发给应用服务器 AS, AS根据所接收到的彩铃复制请求， 向彩铃平 台发送携带彩铃复制信息的请求复制彩铃的指令； 彩铃平台根据所接收 的指令， 将请求复制的彩铃复制到客户端的信息库中。 从而使该客户端 能够即时得到所接听的彩铃， 节省了时间。 附图简要说明
图 1为现有技术中为主叫用户播放彩铃的系统组网结构示意图； 图 2为现有技术中为主叫用户播放彩铃的方法流程图；
图 3为本发明实施例中为主叫彩铃用户播放彩铃并实现彩铃复制的 方法流程图；
图 4为本发明实施例中为主叫彩铃用户播放彩铃并实现彩铃复制的 系统结构示意图；
图 5为本发明实施例中媒体资源服务器的装置结构示意图。 实施本发明的方式
本发明实施例中， MRS向客户端播放彩铃， 获取客户端输入的彩铃 复制请求， 并将所获取的彩铃复制请求转发给 AS , AS根据所接收的彩 铃复制请求， 向彩铃平台发送复制彩铃的指令； 彩铃平台根据所接收的 指令， 将请求复制的彩铃复制到客户端的信息库中。 其中， 客户端一般 为主叫彩铃用户。
具体实现时， 本发明实施例中为了实现在播放彩铃时进行收号， 并 且收号过程中不间断播放彩铃， 需要扩展 AS与 MRS之间以及 MRS与 客户端之间的接口协议，由 AS向 MRS发送彩铃播放并收号的请求消息， MRS对该请求消息进行识别， 向客户端播放彩铃， 并在客户端输入彩铃 复制请求时， 获取该请求信息， 完成收号， 并且不间断彩铃播放。 为了 实现该目的， 本发明实施例中利用基于语音服务器的事件包（BAU )规 范中已定义的相应参数， 扩展 AS与 MRS之间的接口协议， 使 AS能够 发送彩铃播放并收号的请求消息， 并且 MRS 能够识别该请求消息。 并 通过扩展 MRS 的放音接口和收号接口的功能， 使收号接口在收号的同 时， 放音接口不中断媒体流发送， 即不中断放音， 达到 MRS在收到上 述彩铃播放并收号的请求消息后， 能够进行收号， 并在收号过程中， 不 间断彩铃播放。
下面对具体实现过程结合实施例对本发明的实现彩铃复制的方法及 系统进行详细描述。 本实施例中以 NGN网络中的 SIP消息为例， 并通 过在 SIP消息中承载 BAU事件包， 完成 AS与 MRS之间接口协议的扩 展， 并且预先扩展 MRS 的放音接口和收号接口的功能， 使收号接口在 收号的同时， 放音接口不中断彩铃播放。
图 3为本发明实施例中主叫彩铃用户呼叫被叫彩铃用户时， 接听彩 铃并实现彩铃复制的方法流程图。 为描述筒洁， 以下筒称主叫彩铃用户 为主叫， 被叫彩铃用户为被叫， 并将主叫彩铃用户和被叫彩铃用户统称 为客户端。 如图 3所示， 该流程包括如下步骤：
步骤 301 ,主叫向软交换发送携带被叫号码的 SIP INVITE呼叫请求 消息， 请求呼叫被叫。
步骤 302, 软交换通过 SHLR判断出被叫为彩铃用户， 并在 SIP INVITE呼叫请求消息中加入彩铃属性标志位， 然后将携带彩铃属性标 志位的 SIP INVITE呼叫请求消息转发至 AS。
步骤 303~步骤 304, AS接收到该 SIP INVITE呼叫请求消息后， 对 被叫进行鉴权， 并在鉴权通过后， 将被叫号码通过 SIP INVITE消息下 发给软交换， 软交换下发路由到被叫， 通过 SIP INVITE消息与被叫进 行接续。
步骤 305~步骤 306, 被叫如果接通， 则向软交换返回 SIP 180振铃 消息， 软交换将所接收到的 SIP 180振铃消息转发至 AS。
步骤 307, AS接收到 SIP 180振铃消息后， 根据步骤 303中接收到 的携带彩铃属性标志位的 SIP INVITE呼叫请求消息， 获知被叫为彩铃 用户， 并到彩铃平台的数据库中查询用户定制的彩铃信息， 获取彩铃编 码并解析路径后，向 MRS发送彩铃播放并收号的 SIP INVITE请求消息， 该消息中携带有主叫信息及被叫彩铃信息。 请求 MRS向主叫播放彩铃， 并启动向主叫进行收号的收号功能。
本步骤中， 为了实现在接听彩铃的过程中， 达到彩铃复制的目的， 采用 SIP统一资源定位（URL )寻址， 并采用基于 BAU的事件包来携 带相应信息。 在 BAU事件包中包含三个子事件， 即只播放事件（PA)、 播放并收号事件（PC)以及播放并录音事件（PR)。 本实施例中采用 BAU 事件包中的 PC事件， 其中 PC事件支持提示放音接口 （ ip )参数和无间 断播放 ( ni )参数以及数字设置（ dm )参数，但不支持循环播放次数（ it ) 参数、 间隔播放时长（iv )参数。
其中， ip参数用于指定放音文件， 即用于指定播放彩铃语音的文件。 ni参数用于指示播放过程是否间断， 若 ni取值为真（true ), 则表示 不间断播放彩铃， 若取值为假（false ), 则表示彩铃播放过程可间断。 it参数用于指定循环播放的最大次数。
iv参数用于指定间隔播放的时间长度， 即循环播放过程中， 中间间 隔的时间长度。
dm参数用于标识有效按键信息的数字收号模板， 有效数字为" 0~9、 #、 *"。 如果将 dm设置为 91 , 则表示有效数字为 9和 1 , 若将 dm设置 为 25, 则表示有效数字为 2和 5, 依此类推。
因为彩铃作为电话回铃音在被叫摘机之前是不能中断的， 否则便失 去了作为电话回铃音的目的， 因此若实现在播放彩铃的同时进行收号， 需要在收号过程中彩铃播放不中断， 现有技术中的协议， 没有考虑到这 方面的需求， 因此也没有对这方面的实现进行规定。 本实施例中为了实 现彩铃播放过程中进行收号， 并且收号时不间断彩铃播放， 因此需要扩 展协议接口， 定义在 BAU事件包的 PC子事件中还要支持 it、 iv参数， 并且扩展后的 PC子事件支持收号过程中不间断彩铃播放。 通过进行定 义， 使 AS和 MRS能够使用和识别该扩展后的 PC子事件。
下面将给出一个基于以上协议接口扩展思想的实现携带扩展 PC子 事件的 SIP INVITE消息的一个示例。
在 SIP协议中， SIP请求消息的格式为：
请求消息=请求起始行
* (通用头部 I请求头部 I实体头部）
空行
[消息体]
其中， 请求起始行 =方法 请求 URI SIP版本号， 其中， 方法是要 执行的消息类型， 如 INVITE、 BYE等， 请求 URI是被邀请用户的当前 地址， SIP版本号现设定为 SIP/2.0, *表示该字段可有多个。 本实施例中， 假设语音文件为 file://welcome, 并假设设置 dm=91 , 作为要求用户输入的有效按键信息。 例如： 在被叫振铃后， 主叫用户开 始听取文件名为 file://welcome的彩铃， 在接听彩铃过程中， 主叫用户可 以进行按键拨号输入，并且有效的按键数字为 9和 1。假设在发送给 MRS 的彩铃播放请求消息中， BAU的扩展 PC子事件中， 设置 it=10, 即最大 循环播放次数为 10; 设置 iv=10, 即播放间隔时长为 1秒； 设置 ni=true, 即收号过程中不间断彩铃播放，并假设主叫用户的当前地址为： 182.20.60.2。
则按照上述格式，携带 BAU事件包的扩展 PC子事件的 SIP INVITE 消息的请求起始行如下所示：
INVITE
SIP: anni.B AU.pc； ip=file:〃welcome;dm=91； it= 10； iv= 10； ni=true;
© 182.20.60.2 SIP/2.0。
现有技术中， 进行彩铃播放采用的是 PA方式， 主叫在收听过程中 不能进行按键拨号， 例如， 在图 1所示流程中， 按照上述设置的参数值 采 用 PA 方 式 的 请 求 起 始 行 格 式 可 能 为 ： INVITE SIP:anni.BAU.pa;an=file：〃 welcome; it=10;iv=10;@ 182.20.60.2 SIP/2.0。
其中， 关于 SIP INVITE消息的实体部分可与现有技术中的规定一 致， 本实施例中只对请求起始行作了上述设置。 此外， 对各个参数的具 体设置可以根据实际情况进行设置， 上述仅为一个示例性的格式说明。
本步骤中， AS存储有当前主叫信息、 被叫信息以及被叫的彩铃信 息等， 即存储有包括主叫号码、 被叫号码、 被叫彩铃编码等信息。
步骤 308 , MRS接收到彩铃播放并收号的 SIP INVITE请求消息后， 向 AS返回 SIP 200 OK响应消息。
步骤 309~步骤 310, AS将携带 MRS媒体信息的 SIP 180振铃消息 发送给软交换， 软交换再将该 SIP 180振铃消息转发给主叫。
步骤 311 , MRS根据接收到的彩铃播放并收号的 SIP INVITE请求 消息， 获取彩铃语音文件， 并与主叫建立媒体通道， 通过扩展的放音接 口向主叫播放彩铃， 同时建立收号通道。
本步骤中， MRS接收到彩铃播放并收号的 SIP INVITE请求消息后， 根据预先设定的接口协议， 对该 SIP INVITE消息进行识别与解析， 若 语音文件放置在 FTP服务器中， 则从 FTP服务器中获取彩铃语音文件， 否则直接从自身获取彩铃语音文件。 一般情况下， 采用从 FTP服务器中 获取语音文件， 因为 FTP服务器容量较大， 适合存放语音文件， 并且使 用 FTP服务器容易实现语音文件的上传。 之后 MRS通过放音接口向主 叫播放彩铃， 如果主叫能够支持播放视频， 且被叫定制了视音频彩铃， 则 MRS还可以给主叫播放视音频文件； 如果主叫只支持音频， 则 MRS 向主叫播放纯音频彩铃。 同时 MRS建立与客户端的收号通道。
步骤 312, 如果主叫希望复制所接听的彩铃， 则输入预先约定的请 求复制彩铃的业务码， 即向 MRS发送彩铃复制请求。 例如： 若 dm设置 为 91 , 则在 dm的有效按键范围内， 可预先设置 99作为复制彩铃的业 务码。
步骤 313, MRS接收来自主叫的彩铃复制请求， 并将所接收到的彩 铃复制请求通过通知（INFO ) 消息发送给 AS, 完成收号。
本步骤中， 由于预先扩展了 MRS 的接口协议， 因此在收号过程中 和收号结束后不间断彩铃的播放。 即收号接口在接收来自用户的彩铃复 制请求时， 放音接口不中断向客户端发送的媒体流信息， 即不间断播放 彩铃。
其中， 步骤 312中主叫通过电话输入请求复制彩铃的业务码后， 可 生成双音多频信号发送出去， 并且中间可经过媒体网关 （MG )转发， 此时 MG可直接将该双音多频信号透传给 MRS, 或者也可将双音多频 信号生成实时传输协议（RTP )媒体流或实时传输控制协议（RTCP )媒 体流发送给 MRS,因此 MRS所接收的来自主叫的彩铃复制请求可以为： 双音多频信号， RTP媒体流， 或 RTCP媒体流。 然后 MRS可对所接收 的媒体流或双音多频信号进行解析， 得到主叫输入的彩铃复制请求， 并 将得到的彩铃复制请求通过 INFO消息发送给 AS。
步骤 314~步骤 315, AS返回对 INFO消息响应的 SIP 200 OK消息, AS对所接收到的 INFO消息中的彩铃复制请求进行识别，并在识别出主 叫希望复制被叫彩铃后， AS 向彩铃平台发出携带彩铃复制信息的请求 复制彩铃的指令， 彩铃平台接收到该指令后， 根据指令中的彩铃复制信 息， 即请求复制的彩铃的彩铃编码、 主叫号码以及被叫号码等信息进行 复制， 将请求复制的彩铃复制到主叫的信息库中， 即将请求复制的彩铃 编码复制下载到主叫的个人铃音库中。
其中， 请求复制的彩铃也即主叫所接听的被叫的彩铃。
此处， 关于 AS向彩铃平台发送的指令， 可以是基于传输控制协议 / 网间协议（TCP/IP ) 的套接字 （Socket ) 消息， 也可以是基于存储过程 的指令， 还可以是基于筒单对象访问协议（Soap ) 的指令， 具体采用何 种指令要根据彩铃平台实际约束制定的接口而定。
步骤 316, 被叫摘机应答后， 向软交换发送表示摘机的携带有被叫 信息的 SIP 200 OK消息。
步骤 317~步骤 319,软交换将带有被叫信息的 SIP 200 OK消息发送 给 AS , AS接收到来自软交换的 SIP 200 OK消息后， 向 MRS发送结束 彩铃播放的 SIP BYE消息， MRS接收到 SIP BYE消息后， 结束彩铃播 放， 并向 AS返回已结束放音的 SIP 200 OK消息。
步骤 320~步骤 321 , AS向软交换返回 SIP最终响应 ACK消息， 软 交换向被叫发送 SIP最终响应 ACK消息。
步骤 322~步骤 323 , AS向 MRS发送 SIP BYE消息的同时， 向软交 换发送携带有被叫号码 SDP 的 SIP UPDATE 消息， 软交换将该 SIP UPDATE消息转发给主叫，请求进行主叫 SDP的更改， 以便主叫与被叫 进行媒体协商， 并连通进行正常通话。
以上步骤中， 步骤 301至步骤 306为主叫发起呼叫到被叫向 AS返 回振铃消息的流程， 步骤 308~步骤 310为 MRS对 AS发送消息的响应 及 AS接收到响应后将被叫振铃消息发送给主叫的流程， 步骤 316~步骤 323 为被叫摘机应答至主被叫之间进行通话的流程， 与现有技术对应流 程完全一致， 并非本发明实施例方法的内容， 而只是说明本发明实施例 方法的应用场景。 本发明实施例的流程为步骤 307、 步骤 311~步骤 315。 其中步骤 313~步骤 315与步骤 316之间没有一定的先后关系。
图 4为本发明实施例中基于图 3所示方法的实现彩铃复制的系统的 结构示意图。
如图 4所示， 该系统包括： 网络侧与客户端。 并且， 网络侧可以包 括： 软交换、 AS、 MRS 以及彩铃平台及彩铃平台的数据库。 客户端包 括： 主叫彩铃用户与被叫彩铃用户， 分别筒称主叫和被叫。
软交换， 用于接收来自主叫的携带目的地址为被叫号码的呼叫请求 消息， 并在通过 SHLR识别出被叫为彩铃用户时， 在所接收的请求消息 中加入彩铃属性标志位， 并将携带彩铃属性标志位的呼叫请求消息转发 至 AS; 接收 AS返回的携带被叫号码的呼叫请求消息，根据该请求消息 下发路由到被叫； 接收被叫返回的振铃消息， 将该振铃消息返回给 AS。
AS , 用于接收来自软交换的携带彩铃属性标志位的呼叫请求消息， 对该用户进行鉴权， 鉴权通过后， 向软交换返回携带被叫号码的呼叫请 求消息； 并接收软交换返回的被叫振铃的消息， 根据该振铃消息， 从彩 铃平台的数据库中获取彩铃编码并解析路径后， 向 MRS发送彩铃播放 并收号的请求消息； 接收 MRS转发的主叫的彩铃复制请求， 对该彩铃 复制请求进行识别， 并在识别出主叫希望复制彩铃时， 根据该彩铃复制 请求向彩铃平台发送携带彩铃复制信息的请求复制彩铃的指令； 接收被 叫摘机应答的消息，根据该消息向 MRS发送结束播放的消息，接收 MRS 返回的已结束播放的响应消息， 并向主叫发送更新媒体信息的消息， 以 便主叫与被叫进行媒体协商， 正常通话。
彩铃平台的数据库， 用于接收来自 AS的获取彩铃编码的消息， 根 据该消息向 AS返回彩铃编码。
彩铃平台， 用于接收来自 AS的请求复制彩铃的指令， 根据该指令 中的彩铃复制信息进行彩铃复制， 将请求复制的被叫的彩铃复制到主叫 的信息库中， 即将请求复制的彩铃编码复制到主叫的个人铃音库中。
MRS, 用于接收来自 AS的彩铃播放并收号的请求消息， 根据该消 息获取彩铃语音文件， 并与主叫建立媒体连接， 向主叫播放彩铃， 并获 取主叫输入的请求复制彩铃的彩铃复制请求， 将所接收的彩铃复制请求 转发给 AS; 接收来自 AS的结束播放的消息，根据该消息结束向主叫播 放彩铃。
本系统中可以进一步包括 FTP服务器， 用于存储大容量的语音文件 资源， 供 MRS调用。 即 MRS在接收到 AS的彩铃播放并收号的请求消 息后， 从 FTP服务器中获取彩铃语音文件。
上述实施例中， 如果主叫为非彩铃用户， 并且主叫输入了请求复制 彩铃的业务码，则也不影响上述实现过程，只是在彩铃平台进行复制时， 会因为找不到主叫的信息库， 而放弃复制。
此外， 本发明实施例中的 AS, 在具体实现时， 可包括： 应用处理模 块，用于向媒体资源服务器 MRS发送彩铃播放并收号的请求，接收 MRS 转发的客户端输入的彩铃播放请求， 对该彩铃播放请求进行识别， 并在 识别出彩铃复制请求时， 向彩铃平台发送携带彩铃复制信息的请求复制 彩铃的指令。
本发明实施例中的 MRS, 在具体实现时， 可包括： 放音 /收号模块 和业务处理模块。
其中， 业务处理模块， 用于接收来自应用服务器 AS的彩铃播放并 收号的请求， 根据该彩铃播放并收号的请求， 向放音 /收号模块发送控制 指令； 接收放音 /收号模块返回的客户端的彩铃复制请求， 将该彩铃复制 请求发送给 AS。
放音 /收号模块， 用于接收来自业务处理模块的控制指令， 并根据所 接收的控制指令向客户端播放彩铃， 获取客户端输入的彩铃复制请求， 将所获取的彩铃复制请求发送给业务处理模块。
其中， 对于本发明实施例中的系统及装置， 在具体实现时， 实现过 程可与图 3所示方法流程中描述的过程一致。 无需创造性劳动，可变换出 MRS以及 AS的多种具体实现形式，如对上 述 MRS以及 AS中的模块进行拆分或合并等， 此处不再——赘述。
从上述方案可以看出， 本发明实施例中通过 MRS 向客户端播放彩 铃时， 若获取到客户端输入的彩铃复制请求， 则将所获取的彩铃复制请 求转发给应用服务器 AS, AS根据所接收到的彩铃复制请求， 向彩铃平 台发送携带彩铃复制信息的请求复制彩铃的指令； 彩铃平台根据所接收 的指令， 将请求复制的彩铃复制到客户端的信息库中。 从而使该客户端 能够即时得到所接听的彩铃， 节省了时间。
此外， 通过在接听彩铃的同时， 实现对彩铃的复制， 无需客户端进 行网络搜索、 下载等繁瑣工作， 从而进一步降低了客户端的劳动量， 提 高了用户体验。
最后， 由于客户端能够在听取彩铃的同时即时得到所喜欢的彩铃， 从而使该客户端在无需了解彩铃内容信息如彩铃名称时实现复制， 避免 了由于客户端无法得知彩铃内容信息而无法进行搜索的弊端。
以上所述的具体实施例， 仅以基于 SIP协议的消息为例， 对本发明 实施例的目的、 技术方案和有益效果进行了进一步详细说明， 实际应用 中， 还可以将本发明实施例的思想应用于其它协议或组网设备中， 如可 应用于智能网应用规程（INAP )协议， 以及应用于基于智能外设（AIP ) 的组网设备中。 因此， 可以理解的是， 以上所述仅为本发明的具体实施 例而已， 并不用于限定本发明的保护范围， 凡在本发明的精神和原则之 内， 所做的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范 围之内。

Claims

权利要求书
1、 一种实现彩铃复制的方法， 其特征在于， 媒体资源服务器 MRS 向客户端播放彩铃， 获取客户端输入的彩铃复制请求， 该方法包括： 应用服务器 AS接收到 MRS发送的所获取的彩铃复制请求；
AS 根据接收到的彩铃复制请求向彩铃平台发送携带彩铃复制信息 的复制彩铃指令， 所述指令用于指示彩铃平台将请求复制的彩铃复制到 客户端的信息库中。
2、 如权利要求 1所述的方法， 其特征在于， MRS向客户端播放彩 铃之前进一步包括：
AS向 MRS发送彩铃播放并收号的请求， MRS根据接收到的请求向 客户端播放彩铃。
3、如权利要求 2所述的方法， 其特征在于， 所述彩铃播放并收号的 请求为：携带基于语音服务器事件包 BAU的扩展播放并收号 PC子事件 的消息。
4、 如权利要求 3所述的方法， 其特征在于， 所述扩展 PC子事件包 括： 支持提示放音接口 ip参数、 无间断播放 ni参数、 用于标识有效按 键信息的数字设置 dm参数、 循环播放次数 it参数以及间隔播放时长 iv 参数的 PC子事件。
5、如权利要求 4所述的方法， 其特征在于， 所述获取客户端输入的 彩铃复制请求具体包括：
客户端输入请求复制彩铃的业务码的彩铃复制请求， 并且该彩铃复 制请求以双音多频信号的形式发送给媒体网关 MG, MG将所接收的彩 铃复制请求以双音多频信号形式直接透传给 MRS;或者将该彩铃复制请 求由双音多频信号形式转换为实时传输协议 RTP媒体流或实时传输控 制协议 RTCP媒体流形式发送给 MRS。
6、根据权利要求 5所述的方法， 其特征在于， 所述请求复制彩铃的 业务码为根据用于标识有效按键信息的数字设置 dm参数预先设置的。
7、如权利要求 1所述的方法，其特征在于，所述复制彩铃的指令为： 基于传输控制协议 /网间协议的套接字 Socket 消息， 或者为基于存储过 程的指令， 或者为基于筒单对象访问协议 Soap的指令。
8、如权利要求 1所述的方法，其特征在于，所述彩铃复制信息包括： 彩铃编码和客户端信息。
9、 如权利要求 8所述的方法， 其特征在于， 所述彩铃编码为 MRS 向客户端播放的彩铃的彩铃编码； 所述请求复制的彩铃为： 彩铃编码对 应的彩铃。
10、 一种实现彩铃复制的系统， 其特征在于， 该系统包括： 媒体资源服务器 MRS, 用于向客户端播放彩铃时， 获取客户端输入 的彩铃复制请求， 并将所获取的彩铃复制请求转发给应用服务器 AS;
AS, 用于根据接收到的 MRS转发的彩铃复制请求， 向彩铃平台发 送携带彩铃复制信息的请求复制彩铃的指令；
彩铃平台， 用于接收来自 AS的所述指令， 根据接收到的指令将请 求复制的彩铃复制到客户端的信息库中。
11、 如权利要求 10所述的系统， 其特征在于， 所述 AS进一步向 MRS发送彩铃播放并收号的请求；
MRS 进一步根据接收到的彩铃播放并收号的请求向客户端播放彩 铃。
12、 一种应用服务器， 其特征在于， 该应用服务器包括： 应用处理 模块， 用于向媒体资源服务器 MRS发送彩铃播放并收号的请求， 接收 MRS转发的客户端输入的彩铃复制请求， 根据所接收的彩铃复制请求， 向彩铃平台发送携带彩铃复制信息的请求复制彩铃的指令。
13、 一种媒体资源服务器， 其特征在于， 该媒体资源服务器 MRS 包括：
业务处理模块， 用于接收来自 AS的彩铃播放并收号的请求， 根据 该彩铃播放并收号的请求， 向放音 /收号模块发送控制指令； 接收放音 / 收号模块返回的客户端的彩铃复制请求， 将该彩铃复制请求发送给 AS; 放音 /收号模块， 用于接收来自业务处理模块的控制指令， 并根据所 接收的控制指令向客户端播放彩铃， 获取客户端输入的彩铃复制请求， 将所获取的彩铃复制请求发送给业务处理模块。
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US7471783B1 (en) 2008-12-30
EP1944954A1 (en) 2008-07-16

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