WO2012003718A1 - 一种实现随意播放彩铃铃音的方法和系统 - Google Patents

一种实现随意播放彩铃铃音的方法和系统 Download PDF

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Publication number
WO2012003718A1
WO2012003718A1 PCT/CN2011/070478 CN2011070478W WO2012003718A1 WO 2012003718 A1 WO2012003718 A1 WO 2012003718A1 CN 2011070478 W CN2011070478 W CN 2011070478W WO 2012003718 A1 WO2012003718 A1 WO 2012003718A1
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Prior art keywords
terminal
calling
called
calling terminal
network
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PCT/CN2011/070478
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English (en)
French (fr)
Inventor
梅君君
罗会平
韩银俊
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中兴通讯股份有限公司
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Publication of WO2012003718A1 publication Critical patent/WO2012003718A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/42017Customized ring-back tones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10Architectures or entities
    • H04L65/1016IP multimedia subsystem [IMS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066Session management
    • H04L65/1096Supplementary features, e.g. call forwarding or call holding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/006Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer

Definitions

  • the present invention relates to a ring back tone playing technology in a network of a Next Generation Network (NGN) or an IP Multimedia System (IMS), and more particularly to a method and system for implementing a ring tones of a CRBT.
  • NTN Next Generation Network
  • IMS IP Multimedia System
  • the CRBT service personalized ring back tone service
  • the CRBT service has been widely used in existing telecommunication networks due to its obvious personalized features and enhanced user experience, which has brought huge profits to telecom operators.
  • the function of randomly playing the ring tones of the ring tones because the start time and the end time of the ring tones can be specified, so that the user can only listen to a certain segment of the ring tones, further enriching the user experience, and has been widely used.
  • the existing random ring tone technology is implemented on a traditional narrowband network, that is, when the called user is a CS (Circuit Switch) domain user, the calling user can be provided with the function of freely playing the ring tones.
  • CS Circuit Switch
  • the main object of the present invention is to provide a method and system for implementing a ring tones to play a ring tones freely, so that the called user in the PS domain can provide the calling user with the function of randomly playing the ring tones.
  • the technical solution of the present invention is achieved as follows:
  • the invention provides a method for freely playing a ring tones of a CRBT.
  • the method includes: the call of the calling terminal is routed to the called network through the calling network, and the ring back tone service of the application server (AS, Application Server) is triggered by the called network. ;
  • AS Application Server
  • the AS establishes a connection between the calling terminal and the media server (MS, Media Server), and sends a play indication carrying the random ring tone parameter to the MS;
  • the MS After receiving the play indication, the MS plays the CRBT ring tone to the calling terminal according to the random ring tone parameter.
  • the call of the calling terminal is routed to the called network through the calling network, and is: when the calling terminal is the terminal of the PS domain, the call session control function of the calling network (CSCF, Call Session Control Function) Calling the call of the calling terminal to the CSCF of the called network; when the calling terminal is the terminal of the CS domain, the call gateway of the calling terminal is routed by the media gateway control function (MGCF, Media Gateway Control Function) of the calling network.
  • CSCF Call Session Control Function
  • the AS establishes a connection between the calling terminal and the MS, where: the AS sends a request message carrying the connection information of the calling terminal to the MS, and the MS returns its own connection information to the AS, and the AS calls the service through the called network.
  • the session control function (S-CSCF, Serving-Call Session Control Function) sends the connection information of the MS to the calling terminal on the calling network side.
  • connection information of the calling terminal includes: a media connection address, a port number, and an encoding format of the calling terminal;
  • the connection information of the MS includes: a media connection address, a port number, and an encoding format of the MS.
  • the random ringtone parameters include: a ring tone playback start time point, a ring tone playback end time point, a ring tone maximum play duration, and a ring tone. The number of times the loop is played.
  • the method further includes: the AS sending a request message carrying the connection information of the calling terminal to the called terminal, and the called terminal returns a ringing tone carrying the connected terminal connection information to the AS
  • the AS In response to the message, when the called terminal picks up the phone, the AS notifies the calling terminal of the connection information of the called terminal to establish a call connection.
  • the system provided by the present invention provides a system for randomly playing a ring tones, the system comprising: a calling terminal, a calling network, a called network, an AS, an MS;
  • Calling terminal used to send a call
  • a calling network configured to route a call of the calling terminal to the called network
  • the called network is configured to: after receiving the call of the calling terminal, trigger the ring back tone service of the AS; the AS is configured to establish a connection between the calling terminal and the MS, and send a play indication that carries the random ring tone parameter to the MS;
  • the MS after receiving the play indication, plays the ring back tone to the calling terminal connected to itself according to the random ring tone parameter.
  • the calling network routes the call of the calling terminal to the called network, where: when the calling terminal is the terminal of the PS domain, the CSCF of the calling network routes the call of the calling terminal to the called network. CSCF; when the calling terminal is a terminal of the CS domain, the MGCF of the calling network routes the call of the calling terminal to the CSCF of the called network;
  • the S-CSCF of the called network triggers the CRBT service of the called AS side AS.
  • the AS establishes a connection between the calling terminal and the MS, and the AS sends a request message carrying the connection information of the calling terminal to the MS, and sends the connection information of the MS through the S-CSCF of the called network.
  • the calling terminal of the calling network To the calling terminal of the calling network;
  • the MS returns its own connection information to the AS.
  • the AS is further configured to send, to the called terminal, a request message that carries the connection information of the calling terminal, and receive a ringing response message that is sent by the called terminal and carries the connected terminal connection information, when the called terminal picks up
  • the calling terminal is notified of the connection information of the called terminal to establish a call connection
  • the system further includes a called terminal, configured to receive the connection terminal of the AS that carries the calling terminal After receiving the request message of the information, the device returns a ringing response message carrying its own connection information to the AS.
  • the method and system for implementing the ring tones of the CRBT are provided by the present invention.
  • the call of the calling terminal is routed to the called network through the calling network, and the CRBT service of the AS is triggered by the called network; the AS establishes the calling terminal and the MS.
  • the user is provided with the function of freely playing the ring tones of the ring tones, and the user of the PS domain is required to play the ring tones of the ring tones freely.
  • FIG. 1 is a schematic flowchart of a method for implementing a ring tones of a CRBT in an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a system for randomly playing a ring tones of a CRBT according to an embodiment of the present invention
  • FIG. 3 is an AS based on a SIP protocol according to an embodiment of the present invention
  • a flow chart of a method for randomly playing a ring tones of a color ring tone is detailed description
  • the basic idea of the present invention is: the call of the calling terminal is routed to the called network through the calling network, and the ring tone service of the AS is triggered by the called network; the AS establishes a connection between the calling terminal and the MS, and sends the bearer to the MS.
  • the play indication of the ring tone parameter after receiving the play indication, the MS plays the ring tone ring tone to the calling terminal according to the random ring tone parameter.
  • the present invention implements a method for randomly playing a ring tones of a CRBT. As shown in FIG. 1, the method includes the following steps:
  • Step 101 The call of the calling terminal is routed to the CSCF of the called network through the calling network, and the ring back tone service of the called network side AS is triggered by the S-CSCF of the called network.
  • Step 102 The AS establishes a connection between the calling terminal and the MS, and sends a play indication that carries the random ring tone parameter to the MS.
  • the AS sends a request message carrying the connection information of the calling terminal to the MS, and the MS returns its own connection information to the AS, and the AS sends the connection information of the MS to the calling terminal of the calling network through the S-CSCF of the called network. And, the AS sends a play indication that carries the random ring tone parameter to the MS;
  • the AS sends a request message carrying the connection information of the calling terminal to the called terminal, and the called terminal returns a ringing response message carrying the connection information of the called terminal to the AS.
  • the AS will Notifying the calling terminal of the connection information of the called terminal, establishing a call connection;
  • the connection information of the MS includes: a media connection address, a port number, an encoding format, and the like of the MS; the random ring tone parameter is generally set by the called user through the web page, and is synchronized to the called network side AS.
  • the database includes: a ring tone playing start time point, a ring tone playing end time point, a ring tone maximum playing time length, a ring tone loop playing number and the like;
  • the connection information of the called terminal includes: a media connection address, a port number, an encoding format, and the like of the called terminal.
  • Step 103 After receiving the play indication, the MS plays the ring back tone to the calling terminal connected to itself according to the random ring tone parameter;
  • the ringing tone is played to the calling terminal connected to the terminal, and the ring tones are generally played to the calling terminal connected to the terminal by the Real Time Transport Protocol (RTP).
  • RTP Real Time Transport Protocol
  • the called terminal picks up the phone.
  • the actual play duration of the ring tone is the ring tone loop playback number* (ring tone playback end time - ringtone playback start time), otherwise, the ring tone
  • the actual playback duration is the maximum playback duration of the ring tone.
  • the present invention also provides a system for implementing freely playing CRBT ring tones.
  • the system includes: a calling terminal 21, a calling network 22, a called network 23, an AS 24, and an MS. 25; Among them,
  • a calling network 22 configured to route the call of the calling terminal 21 to the called network 23;
  • the called network 23 is configured to trigger the CRBT service of the AS 24 after receiving the call of the calling terminal 21;
  • the AS 24 is configured to establish a connection between the calling terminal 21 and the MS 25, and send a play indication carrying the random ring tone parameter to the MS 25;
  • the calling network 22 routes the call of the calling terminal 21 to the called network 23, and when the calling terminal 21 is the terminal of the PS domain, the CSCF of the calling network 22 will call the calling terminal 21.
  • the call is routed to the CSCF of the called network 23; when the calling terminal 21 is the terminal of the CS domain, the MGCF of the calling network 22 routes the call of the calling terminal 21 to the CSCF of the called network 23;
  • the S-CSCF of the called network 23 triggers the CRBT service of the AS 24 on the called network 23 side;
  • the AS 24 establishes a connection between the calling terminal 21 and the MS 25.
  • the AS 24 sends a request message carrying the connection information of the calling terminal 21 to the MS 25, and passes through the S- of the called network 23.
  • the CSCF sends the connection information of the MS 25 to the calling terminal 21 on the side of the calling network 22;
  • the MS 25 returns its own connection information to the AS 24;
  • the AS 24 is further configured to send a request message carrying the connection information of the calling terminal 21 to the called terminal 26, and receive a ringing response message carrying the connection information of the called terminal 26 returned by the called terminal 26, when the called terminal When the off-hook is off-hook, the connection information of the called terminal 26 is notified to the calling terminal 21 to establish a call connection;
  • system further includes a called terminal 26, configured to receive a ringing response message carrying the self-connection information to the AS 24 after receiving the request message of the AS 24 carrying the connection information of the calling terminal 21.
  • the SIP-based AS implements a method for randomly playing a CRBT ring tone. As shown in FIG. 3, the method includes the following steps:
  • Step 301 The call of the calling terminal is routed to the CSCF of the called network through the calling network, and the ring back tone service of the called network side AS is triggered by the S-CSCF of the called network.
  • the CSCF of the calling network routes the call of the calling terminal to the CSCF of the called network, and the S-CSCF of the called network sends the calling terminal to the AS.
  • the request (invite) message of the SDP information triggers the CRBT service of the called network side AS; when the calling terminal is the terminal of the CS domain, the MGCF of the calling network routes the call of the calling terminal to the CSCF of the called network.
  • the SDP information of the calling terminal includes: a media connection address, a port number, an encoding format, and the like of the calling terminal.
  • Step 302 After receiving the request message, the AS returns a 100 trying message to the S-CSCF of the called network, indicating that the request message has been received and processed.
  • Step 305 After the called terminal rings, return a 180 ringing response message to the AS.
  • the 180 ringing response message further carries the SDP information of the called terminal, including: a media connection address, a port number, an encoding format, and the like of the called terminal;
  • the AS when the called terminal picks up the phone, the AS notifies the calling terminal of the SDP information of the called terminal to establish a call connection.
  • Step 306 After receiving the 180 ringing response message, the AS returns a confirmation message (Prack) to the called terminal, and the called terminal returns 200 to confirm the response;
  • Prack confirmation message
  • Step 308 The MS sends a response request to the AS 200 to carry the SDP information of the MS.
  • the SDP information of the MS includes: a media connection address, a port number, an encoding format, and the like of the MS.
  • Step 309 The AS returns an acknowledgement message ACK to the MS.
  • Step 310 The AS returns a 180 ringing response message to the S-CSCF of the called network, carries the SDP information of the MS, and is sent to the calling terminal through the route of the called network and the calling network.
  • Step 311 The S-CSCF of the called network returns an acknowledgement message to the AS, and after receiving the acknowledgement message, the AS returns a 200 acknowledgement response to the S-CSCF of the called network.
  • Step 312 The AS sends a notification (Info) message to the MS, instructing the MS to play the random ring tone, and carrying the random ring tone parameter in the notification message body;
  • the carrying the random ringtone parameter in the notification message body is generally: in the notification message body, the media session markup language (MSML, Media Objects Markup Language) / Media Objects Markup Language (MOML) is used to indicate this time.
  • MSML Media Objects Markup Language
  • MOML Media Objects Markup Language
  • the parameters of the notification message body carrying the random ring tone are as follows:
  • start is the ringing tone start time point specified by the AS
  • end is the ending time of the ring tone playback specified by the AS
  • iterations indicates the number of times of loop playback
  • maxtime indicates the maximum play duration. Specific examples are as follows:
  • the ringtone segment of the 8s is played twice repeatedly, and the ringtone from the 3s to the 5th is heard for the third time.
  • Step 313 After receiving the notification message, the MS returns a 200 notification response message to the AS, and performs playback to the calling terminal through the RTP protocol according to the random ring tone parameter.
  • the called user in the PS domain can provide the calling user with the function of randomly playing the ring tones, and the user of the PS domain can freely play the ring tones.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
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Abstract

本发明公开了一种实现随意播放彩铃铃音的方法,主叫终端的呼叫通过主叫网络路由到被叫网络,由被叫网络触发应用服务器(AS)的彩铃业务;所述AS建立主叫终端与媒体服务器(MS)的连接,并向MS发送携带随意铃音参数的播放指示;MS接收到播放指示后,按照随意铃音参数向主叫终端播放彩铃铃音;本发明同时还公开了一种实现随意播放彩铃铃音的系统,通过本发明的方案,可以使在分组域(PS)的被叫用户能够为主叫用户提供随意播放彩铃铃音的功能,满足PS域的用户随意播放彩铃铃音的需求。

Description

一种实现随意播放彩铃铃音的方法和系统 技术领域
本发明涉及下一代网络(NGN, Next Generation Network )或 IP多媒 体系统( IMS , IP Multimedia System ) 网络中彩铃播放技术, 尤其涉及一种 实现随意播放彩铃铃音的方法和系统。 背景技术
彩铃业务(个性化回铃音业务) 由于其个性化特征明显、 能增强用户 听觉感受, 在现有的电信网络中已经得到极大的应用, 给电信运营商带来 了丰厚的利润。 其中的随意播放彩铃铃音的功能, 由于能指定播放铃音的 开始时间和结束时间, 以让用户只听铃音中的某一段, 进一步丰富了用户 的体验, 得到了广泛应用。
但是, 现有的随意铃音技术是在传统的窄带网络上实现的, 即当被叫 用户是电路交换(CS , Circuit Switch )域用户时, 才能给主叫用户提供随 意播放彩铃铃音的功能。 随着 IP网络和 Internet的广泛应用、 以及 3G技术 的发展, 越来越多的用户成为了分组域( PS , Packet Switch )用户, 这样, PS域用户间、 以及 CS域的主叫用户呼叫 PS域的被叫用户时, 需要提供基 于宽带网络的随意播放彩铃铃音的功能, 但目前还没有能够提供基于宽带 网络的随意播放彩铃铃音功能的方案。 发明内容
有鉴于此, 本发明的主要目的在于提供一种实现随意播放彩铃铃音的 方法和系统,使在 PS域的被叫用户能够为主叫用户提供随意播放彩铃铃音 的功能。 为达到上述目的, 本发明的技术方案是这样实现的:
本发明提供的一种实现随意播放彩铃铃音的方法, 该方法包括: 主叫终端的呼叫通过主叫网络路由到被叫网络, 由被叫网络触发应用 服务器(AS, Application Server ) 的彩铃业务;
所述 AS建立主叫终端与媒体服务器( MS , Media Server )的连接, 并 向 MS发送携带随意铃音参数的播放指示;
所述 MS接收到所述播放指示后, 按照随意铃音参数向主叫终端播放 彩铃铃音。
上述方案中, 所述主叫终端的呼叫通过主叫网络路由到被叫网络, 为: 在主叫终端为 PS域的终端时, 由主叫网络的呼叫会话控制功能(CSCF, Call Session Control Function )将主叫终端的呼叫路由到被叫网络的 CSCF; 在主叫终端为 CS 域的终端时, 由主叫网络的媒体网关控制功能 ( MGCF, Media Gateway Control Function )将主叫终端的呼叫路由到被叫 网络的 CSCF。
上述方案中, 所述 AS建立主叫终端与 MS的连接, 为: AS向 MS发 送携带主叫终端的连接信息的请求消息, MS向 AS返回自身的连接信息, AS通过被叫网络的服务呼叫会话控制功能( S-CSCF, Serving- Call Session Control Function )将 MS的连接信息发送到主叫网络侧的主叫终端。
上述方案中, 所述主叫终端的连接信息包括: 主叫终端的媒体连接地 址、 端口号、 编码格式;
所述 MS的连接信息包括: MS的媒体连接地址、 端口号、 编码格式; 所述随意铃音参数, 包括: 铃音播放开始时间点、 铃音播放结束时间 点、 铃音最大播放时长、 铃音循环播放次数。
上述方案中, 该方法还包括: 所述 AS向被叫终端发送携带主叫终端的 连接信息的请求消息,被叫终端向 AS返回携带被叫终端连接信息的振铃响 应消息, 当被叫终端摘机时, AS将被叫终端的连接信息通知主叫终端, 建 立通话连接。
本发明提供的一种实现随意播放彩铃铃音的系统, 该系统包括: 主叫 终端、 主叫网络、 被叫网络、 AS、 MS; 其中,
主叫终端, 用于发送呼叫;
主叫网络, 用于将主叫终端的呼叫路由到被叫网络;
被叫网络, 用于在接收到主叫终端的呼叫后, 触发 AS的彩铃业务; AS, 用于建立主叫终端与 MS的连接, 并向 MS发送携带随意铃音参 数的播放指示;
MS, 用于接收到播放指示后, 按照随意铃音参数, 向自身连接的主叫 终端播放彩铃铃音。
上述方案中, 所述主叫网络将主叫终端的呼叫路由到被叫网络, 为: 在主叫终端为 PS域的终端时, 主叫网络的 CSCF将主叫终端的呼叫路由到 被叫网络的 CSCF; 在主叫终端为 CS域的终端时, 主叫网络的 MGCF将主 叫终端的呼叫路由到被叫网络的 CSCF;
相应的, 所述被叫网络的 S-CSCF触发被叫网络侧 AS的彩铃业务。 上述方案中, 所述 AS建立主叫终端与 MS的连接, 为: 所述 AS向 MS发送携带主叫终端的连接信息的请求消息, 并通过被叫网络的 S-CSCF 将 MS的连接信息发送到主叫网络的主叫终端;
相应的, 所述 MS向 AS返回自身的连接信息。
上述方案中, 所述 AS, 还用于向被叫终端发送携带主叫终端的连接信 息的请求消息, 接收被叫终端返回的携带被叫终端连接信息的振铃响应消 息, 当被叫终端摘机时, 将被叫终端的连接信息通知主叫终端, 建立通话 连接;
相应的, 该系统还包括被叫终端, 用于接收到 AS的携带主叫终端的连 接信息的请求消息后, 向 AS返回携带自身连接信息的振铃响应消息。
本发明提供的实现随意播放彩铃铃音的方法和系统, 主叫终端的呼叫 通过主叫网络路由到被叫网络, 由被叫网络触发 AS的彩铃业务; 所述 AS 建立主叫终端与 MS的连接, 并向 MS发送携带随意铃音参数的播放指示; MS接收到播放指示后,按照随意铃音参数向主叫终端播放彩铃铃音;如此, 可以使在 PS域的被叫用户能够为主叫用户提供随意播放彩铃铃音的功能, 满足 PS域的用户随意播放彩铃铃音的需求。 附图说明
图 1为本发明实施例实现随意播放彩铃铃音的方法的流程示意图; 图 2为本发明实施例实现随意播放彩铃铃音的系统的结构示意图; 图 3为本发明实施例基于 SIP协议的 AS、 实现随意播放彩铃铃音的方 法的流程示意图。 具体实施方式
本发明的基本思想是: 主叫终端的呼叫通过主叫网络路由到被叫网络, 由被叫网络触发 AS的彩铃业务; 所述 AS建立主叫终端与 MS的连接, 并 向 MS发送携带随意铃音参数的播放指示; MS接收到播放指示后, 按照随 意铃音参数向主叫终端播放彩铃铃音。
下面通过附图及具体实施例对本发明做进一步的详细说明。
本发明实现随意播放彩铃铃音的方法, 如图 1 所示, 该方法包括以下 几个步骤:
步骤 101: 主叫终端的呼叫通过主叫网络路由到被叫网络的 CSCF, 由 被叫网络的 S-CSCF触发被叫网络侧 AS的彩铃业务;
具体的, 在主叫终端为 PS域的终端时, 由主叫网络的 CSCF将主叫终 端的呼叫路由到被叫网络的 CSCF, 由被叫网络的 S-CSCF触发被叫网络侧 AS的彩铃业务; 在主叫终端为 CS域的终端时, 由主叫网络的 MGCF将主 叫终端的呼叫路由到被叫网络的 CSCF , 由被叫网络的 S-CSCF触发被叫网 络侧 AS的彩铃业务。
步骤 102: AS建立主叫终端与 MS的连接, 并向 MS发送携带随意铃 音参数的播放指示;
具体的, AS向 MS发送携带主叫终端的连接信息的请求消息, MS向 AS返回自身的连接信息, AS通过被叫网络的 S-CSCF将 MS的连接信息发 送到主叫网络的主叫终端, 并且, AS向 MS发送携带随意铃音参数的播放 指示;
进一步的,所述 AS向被叫终端发送携带主叫终端的连接信息的请求消 息,被叫终端向 AS返回携带被叫终端连接信息的振铃响应消息, 当被叫终 端摘机时, AS将被叫终端的连接信息通知主叫终端, 建立通话连接;
所述主叫终端的连接信息包括: 主叫终端的媒体连接地址、 端口号、 编码格式等;
所述 MS的连接信息包括: MS的媒体连接地址、端口号、编码格式等; 所述随意铃音参数, 一般是由被叫用户通过 Web页面设定后, 同步到 被叫网络侧 AS上的数据库中, 包括: 铃音播放开始时间点、 铃音播放结束 时间点、 铃音最大播放时长、 铃音循环播放次数等参数;
所述被叫终端的连接信息包括: 被叫终端的媒体连接地址、 端口号、 编码格式等。
步骤 103: MS接收到播放指示后, 按照随意铃音参数, 向自身连接的 主叫终端播放彩铃铃音;
所述向自身连接的主叫终端播放彩铃铃音, 一般是通过实时传输协议 ( RTP, Realtime Transport Protocol )向自身连接的主叫终端播放彩铃铃音; 本步骤中,在被叫终端摘机应答前,如果铃音循环播放次数 *(铃音播放 结束时间-铃音播放开始时间) <=铃音最大播放时长, 则铃音的实际播放时 长为铃音循环播放次数 *(铃音播放结束时间-铃音播放开始时间), 否则, 铃 音的实际播放时长为铃音最大播放时长。
为了实现上述方法, 本发明还提供了一种实现随意播放彩铃铃音的系 统, 如图 2所示, 该系统包括: 主叫终端 21、 主叫网络 22、 被叫网络 23、 AS 24、 MS 25; 其中,
主叫终端 21 , 用于发送呼叫;
主叫网络 22, 用于将主叫终端 21的呼叫路由到被叫网络 23;
被叫网络 23 , 用于在接收到主叫终端 21的呼叫后, 触发 AS 24的彩铃 业务;
AS 24, 用于建立主叫终端 21与 MS 25的连接, 并向 MS 25发送携带 随意铃音参数的播放指示;
MS 25 , 用于接收到播放指示后, 按照随意铃音参数, 向自身连接的主 叫终端 21播放彩铃铃音;
进一步的,所述主叫网络 22将主叫终端 21的呼叫路由到被叫网络 23 , 可以是, 在主叫终端 21为 PS域的终端时, 主叫网络 22的 CSCF将主叫终 端 21的呼叫路由到被叫网络 23的 CSCF; 在主叫终端 21为 CS域的终端 时, 主叫网络 22 的 MGCF将主叫终端 21 的呼叫路由到被叫网络 23 的 CSCF;
相应的 ,所述被叫网络 23的 S-CSCF触发被叫网络 23侧 AS 24的彩铃 业务;
上述系统中, 所述 AS 24建立主叫终端 21与 MS 25的连接, 一般是所 述 AS 24向 MS 25发送携带主叫终端 21的连接信息的请求消息,并通过被 叫网络 23的 S-CSCF将 MS 25的连接信息发送到主叫网络 22侧的主叫终 端 21 ; 相应的, 所述 MS 25向 AS 24返回自身的连接信息;
所述 AS 24,进一步用于向被叫终端 26发送携带主叫终端 21的连接信 息的请求消息, 接收被叫终端 26返回的携带被叫终端 26连接信息的振铃 响应消息, 当被叫终端 26摘机时, 将被叫终端 26的连接信息通知主叫终 端 21 , 建立通话连接;
进一步的, 该系统还包括被叫终端 26, 用于接收到 AS 24的携带主叫 终端 21的连接信息的请求消息后, 向 AS 24返回携带自身连接信息的振铃 响应消息。
下面通过具体实施例对本发明的方法做进一步的详细说明。
基于 SIP的 AS, 实现随意播放彩铃铃音的方法, 如图 3所示, 该方法 包括以下几个步骤:
步骤 301 : 主叫终端的呼叫通过主叫网络路由到被叫网络的 CSCF, 由 被叫网络的 S-CSCF触发被叫网络侧 AS的彩铃业务;
具体的, 在主叫终端为 PS域的终端时, 由主叫网络的 CSCF将主叫终 端的呼叫路由到被叫网络的 CSCF, 由被叫网络的 S-CSCF向 AS发送携带 主叫终端的 SDP信息的请求(invite ) 消息, 触发被叫网络侧 AS的彩铃业 务; 在主叫终端为 CS域的终端时, 由主叫网络的 MGCF将主叫终端的呼 叫路由到被叫网络的 CSCF, 由被叫网络的 S-CSCF向 AS发送携带主叫终 端的 SDP信息的请求消息, 触发被叫网络中 AS的彩铃业务;
所述主叫终端的 SDP信息包括: 主叫终端的媒体连接地址、 端口号、 编码格式等。
步骤 302: AS接收到请求消息后, 给被叫网络的 S-CSCF回 100 尝试 ( trying ) 消息, 表示已经接收并处理该请求消息;
步骤 303: AS向被叫终端发送携带主叫终端的 SDP信息的请求消息; 步骤 304: 被叫终端接收所述请求消息, 并返回 100尝试消息, 表示已 经接收并处理该请求消息;
步骤 305: 被叫终端振铃后, 向 AS返回 180振铃响应消息;
本步骤中,所述 180振铃响应消息,进一步携带被叫终端的 SDP信息, 包括: 被叫终端的媒体连接地址、 端口号、 编码格式等;
相应的,当被叫终端摘机时, AS将被叫终端的 SDP信息通知主叫终端, 建立通话连接。
步骤 306: AS 收到 180 振铃响应消息后, 向被叫终端回确认消息 ( Prack ) , 被叫终端回 200确认响应;
步骤 307: AS向 MS发送携带主叫终端的 SDP信息的请求消息, MS 接收到所述请求消息后, 返回 100 尝试消息;
步骤 308: MS向 AS回 200请求响应, 携带 MS的 SDP信息; 所述 MS的 SDP信息包括: MS的媒体连接地址、 端口号、 编码格式 等。
步骤 309: AS向 MS返回确认消息 ACK;
步骤 310: AS向被叫网络的 S-CSCF返回 180振铃响应消息,携带 MS 的 SDP信息, 经被叫网络和主叫网络的路由, 最终发送到主叫终端;
步骤 311 :被叫网络的 S-CSCF向 AS返回确认消息, AS接收到所述确 认消息后, 向被叫网络的 S-CSCF返回 200确认响应;
步骤 312: AS向 MS发送通知 (Info ) 消息, 指示 MS播放随意彩铃, 在通知消息体中携带随意铃音参数;
所述在通知消息体中携带随意铃音参数, 一般是: 在通知消息体中用 媒体会话标记语言 (MSML, Media Sessions Markup Language ) /媒体对象 标记语言( MOML, Media Objects Markup Language )指示本次铃音播放的 开始时间、 结束时间、 循环播放次数以及最大播放时长;
例如: 所述通知消息体中携带随意铃音的参数如下:
<play id="0" iterations="100" maxtime="55s" start="10s" end="20s"> 其中, start为 AS指定的铃音播放开始时间点, end表示 AS指定的铃 音播放结束时间点, iterations表示循环播放次数, maxtime表示最大播放时 长。 具体举例如下:
4叚设 AS指定的 start="3s" , end="8s" , iterations=5 , maxtime="25s" , 则 主叫终端将听到从第 38~第 8s的彩铃片段被重复播放 5次;如果 AS指定的 start="3s" , end="8s" , iterations=5, maxtime="22s" , 则主叫终端将听到从第 38~第 8s的彩铃片段被重复播放 4次,第 5次听到从第 38~第 5s的彩铃片段; 如果 AS指定的 start="3s" , end="8s" , iterations=5 , maxtime="12s" , 则主叫 终端将听到从第 38~第 8s的彩铃片段被重复播放 2次,第 3次听到从第 3s~ 第 5s的彩铃片段。
步骤 313: MS接收到所述通知消息后, 向 AS返回 200通知响应消息, 按照随意铃音参数, 通过 RTP协议向主叫终端进行放音。
通过本发明的方案,使在 PS域的被叫用户能够为主叫用户提供随意播 放彩铃铃音的功能, 满足 PS域的用户随意播放彩铃铃音的需求。
以上所述, 仅为本发明的较佳实施例而已, 并非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作的任何修改、 等同替换和改进 等, 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种实现随意播放彩铃铃音的方法, 该方法包括:
主叫终端的呼叫通过主叫网络路由到被叫网络, 由被叫网络触发应用 服务器(AS ) 的彩铃业务;
所述 AS建立主叫终端与媒体服务器 ( MS ) 的连接, 并向 MS发送携 带随意铃音参数的播放指示;
所述 MS接收到所述播放指示后, 按照随意铃音参数向主叫终端播放 彩铃铃音。
2、 根据权利要求 1所述的方法, 其中, 所述主叫终端的呼叫通过主叫 网络路由到被叫网络, 为: 在主叫终端为分组域(PS ) 的终端时, 由主叫 网络的呼叫会话控制功能 (CSCF )将主叫终端的呼叫路由到被叫网络的 CSCF;
在主叫终端为电路交换(CS )域的终端时, 由主叫网络的媒体网关控 制功能(MGCF )将主叫终端的呼叫路由到被叫网络的 CSCF。
3、 根据权利要求 1所述的方法, 其中, 所述 AS建立主叫终端与 MS 的连接, 为: AS向 MS发送携带主叫终端的连接信息的请求消息, MS向 AS 返回自身的连接信息, AS 通过被叫网络的服务呼叫会话控制功能 ( S-CSCF )将 MS的连接信息发送到主叫网络侧的主叫终端。
4、根据权利要求 3所述的方法, 其中, 所述主叫终端的连接信息包括: 主叫终端的媒体连接地址、 端口号、 编码格式;
所述 MS的连接信息包括: MS的媒体连接地址、 端口号、 编码格式; 所述随意铃音参数, 包括: 铃音播放开始时间点、 铃音播放结束时间 点、 铃音最大播放时长、 铃音循环播放次数。
5、根据权利要求 1至 4任一项所述的方法,其中,该方法进一步包括: 所述 AS向被叫终端发送携带主叫终端的连接信息的请求消息,被叫终端向 AS 返回携带被叫终端连接信息的振铃响应消息, 当被叫终端摘机时, AS 将被叫终端的连接信息通知主叫终端, 建立通话连接。
6、 一种实现随意播放彩铃铃音的系统, 该系统包括: 主叫终端、 主叫 网络、 被叫网络、 AS、 MS; 其中, 主叫终端, 用于发送呼叫;
主叫网络, 用于将主叫终端的呼叫路由到被叫网络;
被叫网络, 用于在接收到主叫终端的呼叫后, 触发 AS的彩铃业务; AS, 用于建立主叫终端与 MS的连接, 并向 MS发送携带随意铃音参 数的播放指示;
MS, 用于接收到播放指示后, 按照随意铃音参数, 向自身连接的主叫 终端播放彩铃铃音。
7、 根据权利要求 6所述的系统, 其中, 所述主叫网络将主叫终端的呼 叫路由到被叫网络, 为: 在主叫终端为 PS域的终端时, 主叫网络的 CSCF 将主叫终端的呼叫路由到被叫网络的 CSCF;在主叫终端为 CS域的终端时, 主叫网络的 MGCF将主叫终端的呼叫路由到被叫网络的 CSCF;
相应的, 所述被叫网络的 S-CSCF触发被叫网络侧 AS的彩铃业务。
8、 根据权利要求 6所述的系统, 其中, 所述 AS建立主叫终端与 MS 的连接, 为: 所述 AS向 MS发送携带主叫终端的连接信息的请求消息, 并 通过被叫网络的 S-CSCF将 MS的连接信息发送到主叫网络的主叫终端; 相应的, 所述 MS向 AS返回自身的连接信息。
9、 根据权利要求 6至 8任一项所述的系统, 其中, 所述 AS, 进一步 用于向被叫终端发送携带主叫终端的连接信息的请求消息, 接收被叫终端 返回的携带被叫终端连接信息的振铃响应消息, 当被叫终端摘机时, 将被 叫终端的连接信息通知主叫终端, 建立通话连接;
相应的, 该系统还包括被叫终端, 用于接收到 AS的携带主叫终端的连 接信息的请求消息后, 向 AS返回携带自身连接信息的振铃响应消息。
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