WO2006131076A2 - A route controlling method of multimedia call and the apparatus thereof - Google Patents

A route controlling method of multimedia call and the apparatus thereof Download PDF

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Publication number
WO2006131076A2
WO2006131076A2 PCT/CN2006/001255 CN2006001255W WO2006131076A2 WO 2006131076 A2 WO2006131076 A2 WO 2006131076A2 CN 2006001255 W CN2006001255 W CN 2006001255W WO 2006131076 A2 WO2006131076 A2 WO 2006131076A2
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WO
WIPO (PCT)
Prior art keywords
routing
multimedia call
call
information
service
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PCT/CN2006/001255
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English (en)
French (fr)
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WO2006131076A3 (fr
Inventor
Yong Wu
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to EP06742141A priority Critical patent/EP1937004B1/en
Publication of WO2006131076A2 publication Critical patent/WO2006131076A2/zh
Anticipated expiration legal-status Critical
Publication of WO2006131076A3 publication Critical patent/WO2006131076A3/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0029—Provisions for intelligent networking
    • H04Q3/0045—Provisions for intelligent networking involving hybrid, i.e. a mixture of public and private, or multi-vendor systems

Definitions

  • the present invention relates to the field of Intelligent Network (IN) technology, and in particular, to a multimedia call routing control method and apparatus.
  • I Intelligent Network
  • An intelligent network is a network that introduces an intelligent network function entity in an existing communication network system to implement control of a smart call service.
  • an intelligent network functional entity such as a Service Switching Point (SSP)
  • SSP Service Switching Point
  • the low-level communication network is connected to the high-level intelligent network to form an intelligent network.
  • the intelligent network can generate and implement various new services for the existing communication network system quickly, conveniently, flexibly, economically and effectively, so that users can more easily and flexibly obtain the required various Kind of information.
  • the biggest feature of the intelligent network is that the switching function of the network is separated from the service control function. With the support of No.7 signaling network and large centralized database, the intelligent network can complete the intelligent business logic processing and control the switch to complete the corresponding Intelligent call processing.
  • the intelligent network can not only instruct the switch to continue to call the original route, but also modify the call according to the new intelligent service requirement. Routing information to instruct the switch to connect the call to a specific destination. If the user is triggered by the RBT (Ring Back Tone), the intelligent network will modify the routing information of the call to modify the routing information of the call. To instruct the switch to route the call to the RBT service playback platform.
  • RBT Ring Back Tone
  • FIG. 1 is a schematic diagram of an embodiment process of an existing intelligent network for routing control of a service connection process; wherein the process of intelligently controlling a call according to an intelligent service requirement is as follows:
  • the calling user A 111 wants to call the original called user B 112, it needs to pass the office that triggers the intelligent service (referred to as the triggering office.
  • the triggering office One ⁇ : the user triggers the office, and may also be an independent office) 121 and the original The called office 122 connects the call to the original called user B 112;
  • the triggering office 121 sends a trigger message to the intelligent network 130 to notify the intelligent network 130 to trigger the corresponding intelligent service.
  • the intelligent network 130 modifies the routing address of the current call according to the trigger message, for example, the called number is modified from the number of the called user B 112 to the number of the called user C 113, or directly modified to be routable to the new called office 123.
  • the intelligent network 130 indicates the modified routing address to the triggering office 121, and the triggering office 121 connects the current call to the new called party C 113 or a specified office equipment through the new called office 123 according to the modified routing address. .
  • the intelligent network controls the network, it needs to perform separate routing control for different media streams in the same multimedia call, that is, the voice media stream and the video media stream in the same multimedia call are respectively controlled by routing to adapt to the multimedia service in the intelligent network. Widely developed in the middle.
  • the multimedia call process can be implemented based on a circuit switched domain (CS) or a packet switched domain (PS, Packet Switch).
  • CS circuit switched domain
  • PS Packet Switch
  • FIG. 2 is a schematic diagram showing an implementation process of routing control of a multimedia call process by an intelligent network in a circuit switched domain; the implementation process is as follows:
  • the triggering office finds that the calling user or the called user applies for the intelligent service, and then triggers the office to send the bearer to the service control point (SCP) in the intelligent network.
  • SCP service control point
  • An initial detection point (IDP, Initial Detect Point) message of the corresponding intelligent data is used to trigger the corresponding intelligent service;
  • the service control point SCP runs related intelligent service logic according to the intelligent data carried in the received IDP message. If the routing information of the multimedia call needs to be modified due to the intelligent service, the routing information of the multimedia call needs to be performed. Modifying, and modifying the modified new destination routing address (DRA, Destination Routing Address) to be sent to the triggering station in the connection message (Connect); 3. The trigger office routes the multimedia call to the new called party according to the new destination routing address encapsulated in the received Connect message, and the new called party further connects the multimedia call to the new called party. ;
  • DDA Destination Routing Address
  • the calling and called users enter a normal multimedia communication process (including voice media communication and video media communication).
  • the routing information sent by the SCP in the intelligent network to the triggering station through the Connect message includes only one routing address parameter that has been changed, and the triggering station can only follow the The unique routing address after the received change is processed to reroute the entire multimedia call.
  • the SCP in the intelligent network does not distinguish between the voice media stream and the video media stream in the multimedia call, respectively, to respectively perform routing control on the voice media stream and the video media stream in the same multimedia call, thereby greatly limiting the multimedia service in The development potential in the intelligent network.
  • the present invention provides a multimedia call routing control method and apparatus for implementing separate routing control of different media streams in the same multimedia call by an intelligent network, which is advantageous for promoting the application of multimedia services in an intelligent network.
  • a multimedia call routing control method includes the following steps: In a circuit switched domain, a service control point in an intelligent network separately configures corresponding routing information for different media streams in the same multimedia call;
  • the configured routing information is instructed to the triggering office switch that is responsible for connecting the multimedia call.
  • the triggering office switch performs routing connection on different media streams according to the routing information for different media streams indicated by the service control point.
  • the routing information corresponding to the configuration further includes the step of the triggering the switch that connects the multimedia call to report the media stream type list included in the multimedia call to the service control point; the routing information corresponding to the configuration includes: the service control point according to the The media stream type list reported by the switch is configured to configure corresponding routing information for different media streams in the same multimedia call.
  • the different media streams include a voice media stream and a video media stream.
  • the routing information corresponding to the configuration further includes the following steps:
  • the call type to be connected by the trigger office switch is represented by a bearer capability parameter and a low layer compatibility parameter in the initial checkpoint message;
  • the service control point determines whether the current call type is a multimedia call according to the bearer capability parameter and the low layer compatibility parameter in the received initial detection point message; if yes, enters the routing information configuration process.
  • the call types include pure voice calls and multimedia calls.
  • the routing connection includes: triggering the office switch to perform routing connection according to the routing information of the voice service media stream based on the user part signaling of the integrated service digital network.
  • the routing connection includes: triggering the office switch to perform routing connection on the video media stream according to the routing information of the video media stream based on the integrated service digital network user part signaling or the session initial protocol signaling.
  • the routing information corresponding to the configuration further includes the following steps:
  • the trigger office switch encapsulates the calling subscriber information and/or the called subscriber information that is applied for the intelligent service in an initial detection point message, and sends the information to the service control point;
  • the service control point indexes the smart service related to the intelligent service applied by the calling user and/or the called user according to the calling user information and/or the called user information encapsulated in the received initial detection point message in the database.
  • the configuration route is performed when the corresponding intelligent service logic is run according to the obtained intelligent service information.
  • the routing information indicating the configuration includes: the service control point, by encapsulating the routing information in the connection message sent to the trigger office switch, to indicate the routing information to the trigger office switch.
  • the step of the routing information corresponding to the configuration and the routing information indicating the configuration further includes the following steps: the service control point sends a request to the triggering office switch to request the triggering the switch to perform the routing connection on the multimedia call.
  • the request reported by the event information reports a basic call state model event message.
  • the method further includes the steps of: triggering the local exchange to be respectively directed to different media
  • the event information of the various types of event information that is encountered in the process of the flow of the route is reported to the service control point in the report basic call state model event message.
  • event information include the called user busy, the routing connection failure, and the calling user abandonment event.
  • the method further includes the step of: after the service control point receives the report basic call state model event message, the release of the release call message to the trigger office switch; the triggering the office switch releases the communication with the service control point after receiving the release call message connection.
  • a multimedia call routing control apparatus in an intelligent network, including:
  • a routing information configuration unit configured to separately configure corresponding routing information for different media streams in the same multimedia call in the circuit switched domain
  • the routing information indicating unit indicates the configured routing information to the trigger office switch that is responsible for connecting the multimedia call.
  • the routing information configuration unit configures corresponding routing information for different media streams in the same multimedia call according to the media stream type list reported by the triggering office switch.
  • the routing information indicating unit specifically indicates the routing information to the trigger office switch by encapsulating the routing information in the connection message sent to the trigger office switch.
  • the multimedia call routing control unit further includes a call type determining unit, configured to determine, according to the bearer capability parameter and the lower layer compatibility parameter in the received initial detection point message, whether the current call type is a multimedia call; if yes, trigger the routing information configuration unit.
  • a call type determining unit configured to determine, according to the bearer capability parameter and the lower layer compatibility parameter in the received initial detection point message, whether the current call type is a multimedia call; if yes, trigger the routing information configuration unit.
  • the multimedia call routing control device further includes a request report event unit, configured to send a request to the trigger office switch to request the triggering the office switch to report the basic call status of the various types of event information reported during the routing of the multimedia call. Model event message.
  • a multimedia call routing control apparatus in a switch of a circuit switched domain, including a routing connection unit, configured to use routing information for different media streams according to a service control point of the intelligent network, Routing is performed separately for different media streams.
  • the device may further include: a media stream type reporting unit, configured to report the media stream type list included in the multimedia call to the service control point.
  • the apparatus may further include: a call type embodying unit for making a call type to be connected
  • the sending unit is configured to send the initial detection point message encapsulated with the bearer capability parameter and the low layer compatibility parameter to the service control point.
  • the apparatus may further include: a user information sending unit, configured to encapsulate the calling user information and/or the called user information that is applied for the intelligent service into the initial detection point message and send the information to the service control point.
  • a user information sending unit configured to encapsulate the calling user information and/or the called user information that is applied for the intelligent service into the initial detection point message and send the information to the service control point.
  • the device may further include: an event reporting unit, configured to encapsulate the various types of event information encountered in the routing process for the different media streams in the report basic call state model event message to the service control point.
  • an event reporting unit configured to encapsulate the various types of event information encountered in the routing process for the different media streams in the report basic call state model event message to the service control point.
  • the present invention proposes that the SCP in the intelligent network configures corresponding routing information for each type of media stream according to different media streams included in the same multimedia call, and the configured routing information is indicated to the trigger office switch, and the trigger office switch according to each The routing information of the class media stream is routed to each type of media call. Therefore, when implementing multimedia communication based on the circuit switched domain, the SCP can perform routing control on each type of media stream included in the same multimedia call, which can promote the development and application of multimedia services in the circuit switching domain of the intelligent network.
  • FIG. 1 is a schematic diagram of an embodiment process of an existing intelligent network for routing control of a service connection process
  • FIG. 2 is a schematic diagram of an implementation process of routing control of a multimedia call process by an intelligent network in a circuit switched domain
  • FIG. 4 is a flowchart of a specific implementation of distinguishing different call types by an SCP according to the present invention
  • FIG. 5 is a flowchart of an implementation of triggering an intelligent service by a trigger switch according to the present invention
  • FIG. 6 is a schematic diagram of a specific implementation process including two types of voice media streams and video media streams in the same multimedia call according to the present invention.
  • the design idea of the multimedia call routing control method of the present invention is to enable the SCP in the intelligent network to It is possible to distinguish different media streams in the multimedia call based on the circuit switched domain, and separately perform routing control for each type of media stream, so as to expand the development prospect of the multimedia communication service in the circuit switching domain of the intelligent network.
  • FIG. 3 is a flow chart of the main implementation principle of the present invention.
  • the main implementation principles are as follows:
  • Step S10 When the multimedia communication service is implemented in the circuit switched domain of the intelligent network, the SCP in the intelligent network separately configures corresponding routing information for different media streams in the same multimedia call; wherein the traditional same multimedia call usually includes a voice media stream. And video media streaming; as technology evolves, there may be other media stream types in the circuit switched domain.
  • the SCP directly stipulates that the same multimedia call includes two different media stream types: a voice media stream and a video media stream, and two types.
  • the media stream type is configured with the corresponding routing information separately.
  • the trigger office switch can report the list of media stream types included in the connected multimedia call to the media stream type.
  • the SCP further configures corresponding routing information for different media streams in the same multimedia call according to the received media stream type list.
  • the trigger office switch may have turned off the media stream capability of a portion of the multimedia call initiated by the calling user before triggering the SCP.
  • the voice media stream in the existing multimedia call is closed, and only the video media stream is closed.
  • the trigger office switch can report the list of media stream types actually included in the connected multimedia call to the SCP, and the SCP further receives the
  • the actual media stream type list is the routing information corresponding to different media streams actually included in the same multimedia call.
  • the SCP will trigger the SCP.
  • the local switch sends a request to report the basic call state model event message (RRBE, Request Report BCSM Event) for requesting the trigger to switch the various types of event information encountered during the routing of the multimedia call.
  • the SCP respectively indicates the routing information configured for each type of media stream to the trigger office switch that is responsible for connecting the multimedia call; wherein the SCP can be implemented by encapsulating the routing information in a connection message (Connect) sent to the trigger office switch. Indicate routing information to the purpose of triggering the switch.
  • Step S30 The triggering office switch performs routing connection on different media streams according to routing information for different media streams indicated by the SCP, for example, may be based on an integrated service digital network user part (ISUP, ISDN User Part) signaling according to the voice media stream.
  • ISUP integrated service digital network user part
  • the routing information voice media stream is routed; and the video media stream is routed according to the ISUP signaling or Session Initial Protocol (SIP) signaling according to the routing information of the video media stream.
  • SIP Session Initial Protocol
  • the triggering switch will separately connect each type of media call when routing the data according to the routing information of different media streams.
  • the various types of event information are encapsulated in the report basic call state model event message (ERB, Event Report BCSM) and reported to the SCP.
  • ERB report basic call state model event message
  • the SCP After receiving the ERB message reported by the triggering switch, the SCP sends a Release Call message to the triggering switch. After the receiving switch receives the ReleaseCall message, it releases the communication connection with the SCP.
  • the call type of the intelligent network generally includes a pure voice call type and a multimedia call type.
  • the process of distinguishing different call types by the SCP is specifically as shown in FIG. 4, and the implementation process is as follows: Step S11, the trigger office switch will use the connected call type but It is not limited to use the Bearer Capability and the Low Layer Compatibility parameter in the initial detection point IDP message.
  • Step SI 2 the trigger office switch sends an IDP message encapsulating the Bearer Capability parameter and the Low Layer Compatibility parameter to the SCP;
  • Step S13 The SCP determines whether the call type is a multimedia call type according to the Bearer Capability parameter and the Low Layer Compatibility parameter in the received IDP message, and performs the processing shown in Figure 3 only when the multimedia call is made.
  • Step S111 the trigger office switch responsible for connecting the multimedia call according to participating in the multimedia
  • the calling user information and the called user information of the physical call are learned that the calling user and/or the called user apply for an intelligent service
  • Step S112 the trigger office switch encapsulates the calling subscriber information (such as the calling subscriber number information) and/or the called subscriber information (such as the called subscriber number information) that is applied for the intelligent service into the IDP message and sends the information to the SCP.
  • the calling subscriber information such as the calling subscriber number information
  • the called subscriber information such as the called subscriber number information
  • Step S113 The SCP indexes, according to the calling user information and/or the called user information encapsulated in the received IDP message, the smart service information related to the smart service applied by the calling user and/or the called user in the database.
  • Step S114 The SCP runs the corresponding intelligent service logic according to the smart service information obtained as described above.
  • the triggering office switch notifies the intelligent network whether the current call is a normal voice call or a multimedia call when the intelligent network is triggered in the calling or called connection process;
  • the SCP in the intelligent network may indicate that different routes are used for different media streams (such as voice media streams and video media streams) in the same multimedia call;
  • the triggering office switch may perform different routing connections on different media streams in the same multimedia call according to the foregoing indication; and trigger the local office switch to perform voice media streaming according to the same multimedia call.
  • the related event information is reported to the SCP separately.
  • the triggering office switch learns that the calling user or the called user applies for an intelligent service according to the number of the calling user or the called user and other intelligent data.
  • the triggering office switch sends an initial detection point (IDP) message to the service control point (SCP) in the intelligent network according to the intelligent call processing flow, triggering the intelligent process to the intelligent network; thereby establishing control between the trigger office switch and the intelligent network. Relationship, wherein the IDP message sent by the trigger office switch includes the calling party and/or the called user number information of the smart service with the credit and Identifies whether the call is a bearer capability parameter and a low layer compatibility parameter of the multimedia call.
  • the SCP determines whether the Bearer Capability and the Low Layer Compatibility parameter (LLC, Low Layer Compatibility) included in the IDP message are identified as a multimedia call (the subsequent process is only for multimedia).
  • LLC Low Layer Compatibility
  • the call type, the pure voice call processing process belongs to the prior art, and is not described in detail.
  • the calling party user and/or the called user information and the database information registered in the SCP are applied for, and the query is obtained. Calling the intelligent service information related to the intelligent service applied by the user and/or the called user, and then running the corresponding intelligent business logic according to the obtained intelligent business information.
  • the intelligent network also wants to trigger the office switch to report various events encountered during the call connection process (eg, the called user is busy, the routing connection fails, the calling user abandons the event, etc.), so that the triggering of the office switch is in progress.
  • the basic call state model event request report RJ BE, request report BCSM event
  • the intelligent network configuration wants to trigger the switch of the local switch to report the corresponding event.
  • the SCP in the intelligent network sends a connect message, where the connect message includes different routing control information and routing parameters of the voice media stream and the video media stream. For example, when the calling user initiates a multimedia call, but the called user is a 2G user and does not support the video media stream, after the intelligent network recognizes the situation, the voice media stream is normally routed to the called user. The video media stream is routed to a video playback platform.
  • the trigger office switch respectively route the voice media stream and the video media stream in the multimedia call according to the routing address information for the voice media stream and the video media stream respectively included in the Connect message.
  • a multimedia call is divided into independent voice media streams and video media streams, and routing routes are respectively performed according to respective routing information.
  • the trigger office switch establishes a voice media stream communication with the called user, and establishes a video media stream with the video playing platform.
  • the voice media stream connection process can be established based on the ISUP signaling mode, and is based on ISUP signaling or
  • the SIP signaling method is used as an example to establish a video media stream connection process) communication.
  • the trigger office switch is still combined into a multimedia call form when the corresponding media stream is transmitted to the calling user side.
  • the calling user can now make a voice call with the called user in a multimedia call.
  • you can also see the video image information played in the video playback platform.
  • the trigger office switch needs to connect two different media streams in the same multimedia call separately, so there may be different events in the connection process between the voice media stream and the video media stream. If the voice media stream communication has been turned on, but the video media stream communication continues to have errors and the like. Therefore, when an ERB message is reported to the SCP, the events encountered in different media streams and the corresponding reasons are separately distinguished.
  • the triggering office switch reports the basic call state model event (ERB) message to the trigger office switch to implement the event that will be encountered. The purpose of reporting various events to the intelligent network SCP.
  • ERP basic call state model event
  • the SCP After the SCP receives the ERB message reported by the switch, the SCP releases the call.
  • the notification triggers the switch to release the call control between the current and the intelligent network.
  • the multimedia call routing control method of the present invention can enable the intelligent network to perform different connection control according to different media during the multimedia call process, and obtain different connection situations.
  • the user is provided with a rich and diverse content source, which satisfies the different sensory needs of the user.
  • the calling user can be provided with a voice media that talks to the called user, and can also play video media from other information sources.
  • the multimedia call routing control device of the present invention is disposed in the intelligent network, and includes: a routing information configuration unit, configured to separately configure corresponding routing information for different media streams in the same multimedia call in the circuit switched domain;
  • the routing information indicating unit indicates the configured routing information to the trigger office switch that is responsible for connecting the multimedia call.
  • the routing information configuration unit configures corresponding routing information for different media streams in the same multimedia call according to the media stream type list reported by the triggering office switch.
  • the routing information indicating unit specifically indicates the routing information to the trigger office switch by encapsulating the routing information in the connection message sent to the trigger office switch.
  • the multimedia call routing control unit further includes a call type determining unit, configured to determine, according to the bearer capability parameter and the lower layer compatibility parameter in the received initial detection point message, whether the current call type is a multimedia call; if yes, triggering the routing information configuration unit.
  • the multimedia call routing control device further includes a request report event unit, configured to send a request to the trigger office switch to request the triggering the office switch to report the basic call status of the various types of event information reported during the routing of the multimedia call. Model event message.
  • the present invention also provides a multimedia call routing control device disposed in a switch of a circuit switched domain, including a routing connection unit, configured to separately route different media streams according to routing information for different media streams indicated by a service control point of the intelligent network. Continued.
  • the device may further include: a media stream type reporting unit, configured to report the media stream type list included in the multimedia call to the service control point.
  • the device may further include: a call type embodying unit, configured to use the bearer capability parameter and the low layer compatibility parameter in the initial checkpoint message to be used for the call type to be connected; the sending unit, configured to encapsulate the bearer capability parameter and the low layer compatibility The initial detection point message of the parameter is sent to the service control point.
  • a call type embodying unit configured to use the bearer capability parameter and the low layer compatibility parameter in the initial checkpoint message to be used for the call type to be connected
  • the sending unit configured to encapsulate the bearer capability parameter and the low layer compatibility The initial detection point message of the parameter is sent to the service control point.
  • the apparatus may further include: a user information sending unit, configured to encapsulate the calling user information and/or the called user information for which the smart service is applied, in an initial detection point message, and send the information to the service control point.
  • a user information sending unit configured to encapsulate the calling user information and/or the called user information for which the smart service is applied, in an initial detection point message, and send the information to the service control point.
  • the device may further include: an event reporting unit, configured to encapsulate the various types of event information encountered in the process of routing the different media streams in the report basic call state model event message to the service control point.
  • an event reporting unit configured to encapsulate the various types of event information encountered in the process of routing the different media streams in the report basic call state model event message to the service control point.

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Description

多媒体呼叫路由控制方法及装置
技术领域 本发明涉及智能网（IN, Intelligent Network )技术领域， 尤其涉及一 种多媒体呼叫路由控制方法及装置。
背景技术 智能网是在现有通信网絡系统中引入智能网功能实体,从而实现对智 能呼叫业务进行控制的一种网络。通过在现有通信网络系统中引入业务交 换点 （SSP, Service Switching Point )等智能网功能实体， 使低层通信网 与高层智能网相连，从而形成智能网。智能网作为现有通信网络系统的高 层业务网， 能够快速、 方便、 灵活、 经济且有效地为现有通信网络系统生 成和实现各种新业务， 使用户能够更加方便灵活地获取所需的各种信息。
其中智能网的最大特点是将网络的交换功能与业务控制功能相分离， 借助于 No.7信令网和大型集中式数据库的支持， 智能网能够完成智能业 务逻辑处理， 并控制交换机完成相应的智能呼叫处理。
智能网最基本的功能之一是指示交换机对业务接续过程进行路由控 制，智能网不仅仅可以指示交换机继续呼叫本次原有的路由，还可以根据 新的智能业务需求，通过修改本次呼叫的路由信息来指示交换机将呼叫接 续到特定的目的点。如基于智能网的 RBT ( Ring Back Tone, 回铃音业务） 用户在呼叫过程中触发智能网上的该业务，智能网将对本次呼叫的路由信 息进行修改，以通过修改本次呼叫的路由信息来指示交换机将呼叫路由到 RBT业务播放平台。
图 1 所示为现有智能网对业务接续过程进行路由控制的实施例处理 过程示意图；其中智能网根据智能业务需求对呼叫进行路由控制的过程如 下：
初始， 主叫用户 A 111若要呼叫原被叫用户 B 112， 需要通过触发智 能业务的局（简称触发局。一^:为用户触发局， 也有可能是某个独立的局 点 ) 121和原被叫局 122将呼叫接续到原被叫用户 B 112;
若在呼叫发生或呼叫过程中， 有智能业务介入（如呼叫转移业务）， 触发局 121将发送触发消息给智能网 130，以通知智能网 130触发相应的 智能业务；
智能网 130根据触发消息修改本次呼叫的路由地址，如将被叫号码由 被叫用户 B 112的号码修改为被叫用户 C 113的号码，或者直接修改为可 路由到新被叫局 123的局向设备的地址；
智能网 130将修改后的路由地址指示给触发局 121 ,触发局 121根据 修改后的路由地址将本次呼叫通过新被叫局 123接续到新被叫用户 C 113 或者某个指定的局向设备。
目前在智能网的多媒体呼叫过程中，一般一个呼叫行为中不仅存在有 传统的话音媒体流，还存在有视频媒体流， 以使用户能够同时享受到包括 有话音和视频的多媒体业务服务。 因此， 智能网对其进行控制时， 需要针 对同一多媒体呼叫中的不同媒体流分别进行路由控制，即对同一多媒体呼 叫中的话音媒体流和视频媒体流分別进行路由控制才能适应多媒体业务 在智能网中的广泛开展。
而多媒体呼叫过程可以基于电路交换域（CS, Circuit Switch ) 实现， 也可以基于分组交换域（PS, Packet Switch )实现。 目前， 在电路交换域 实现的多媒体呼叫业务中，智能网根据多媒体智能业务需求对多媒体呼叫 进行路由控制的过程并不能区分多媒体呼叫中的话音媒体流和视频媒体 流。图 2所示为现有在电路交换域中由智能网对多媒体呼叫过程进行路由 控制的实现过程示意图； 其中实现过程如下：
1、 触发局在对主叫用户的多媒体呼叫进行接续过程中， 发现主叫用 户或者被叫用户申请有智能业务， 于是触发局向智能网中的业务控制点 ( SCP, Service Control Point )发送承载有相应智能数据的初始检测点 ( IDP, Initial Detect Point ) 消息， 以触发对应的智能业务；
2、业务控制点 SCP根据接收的 IDP消息中承载的智能数据，运行相 关的智能业务逻辑，如果由于该智能业务需要修改本次多媒体呼叫的路由 信息，则要对本次多媒体呼叫的路由信息进行修改，并将修改后的要将本 次呼叫路由到的新的目的路由地址 ( DRA, Destination Routing Address ) 封装在连接消息 （Connect ) 中发送给触发局； 3、 触发局根据接收的 Connect消息中封装的新的目的路由地址将本 次多媒体呼叫路由到新的被叫局，由该新的被叫局进而将本次多媒体呼叫 接续给新的被叫用户；
此后 ,主被叫用户之间进入正常的多媒体通信过程 (包括话音媒体通 信和视频媒体通信）。
由上述过程可见，现有技术在电路交换域中实现多媒体通信时，智能 网中的 SCP通过 Connect消息向触发局发送的路由信息只包括一个已更 改处理的路由地址参数，触发局也只能按照接收到的更改处理后的该唯一 路由地址对整个多媒体呼叫进行重新路由。 而智能网中的 SCP根本不区 分本次多媒体呼叫中的话音媒体流和视频媒体流，以分别针对同一多媒体 呼叫中的话音媒体流和视频媒体流分别进行路由控制，因此大大限制了多 媒体业务在智能网中的发展潜力。
发明内容
本发明提出一种多媒体呼叫路由控制方法及装置，以实现由智能网分 别对同一多媒体呼叫中的不同媒体流分别进行路由控制，有利促进多媒体 业务在智能网中的开展应用。
根据本发明的一个方面， 一种多媒体呼叫路由控制方法， 包括步驟： 在电路交换域中，智能网中的业务控制点为同一多媒体呼叫中的不同 媒体流分别配置对应的路由信息；
将配置的路由信息指示给负责接续该多媒体呼叫的触发局交换机； 触发局交换机根据业务控制点指示的针对不同媒体流的路由信息，对 不同媒体流分别进行路由接续。
其中所述配置对应的路由信息之前还包括接续多媒体呼叫的触发局 交换机将多媒体呼叫中包含的媒体流类型列表上报给业务控制点的步骤； 所述配置对应的路由信息具体包括：业务控制点根据触发局交换机上报的 媒体流类型列表，为同一多媒体呼叫中的不同媒体流分别配置对应的路由 信息。
其中所述不同媒体流包括话音媒体流和视频媒体流。
其中所述配置对应的路由信息之前还包括步骤： 所述触发局交换机将要接续的呼叫类型使用初始检测点消息中的承 载能力参数和低层兼容性参数体现； 并
将封装有承载能力参数和低层兼容性参数的初始检测点消息发送给 业务控制点；
所述业务控制点根据接收的初始检测点消息中的承载能力参数和低 层兼容性参数判断本次呼叫类型是否为多媒体呼叫；如果是则进入路由信 息的配置过程。
其中所述呼叫类型包括纯语音呼叫和多媒体呼叫。
其中所述路由接续包括:触发局交换机基于综合业务数字网用户部分 信令根据话音媒体流的路由信息对话音媒体流进行路由接续。
其中所述路由接续包括:触发局交换机基于综合业务数字网用户部分 信令或会话初始协议信令根据视频媒体流的路由信息对视频媒体流进行 路由接续。
其中所述配置对应的路由信息之前还包括步骤：
所述触发局交换机将申请有智能业务的主叫用户信息和 /或被叫用户 信息封装在初始检测点消息中发送给业务控制点；
所述业务控制点根据接收的初始检测点消息中封装的主叫用户信息 和 /或被叫用户信息在自身数据库中索引得到与主叫用户和 /或被叫用户 申请的智能业务相关的智能业务信息；
所述配置路由是在根据得到的智能业务信息运行对应的智能业务逻 辑时进行。
其中所述指示配置的路由信息包括:业务控制点通过将路由信息封装 在下发到触发局交换机的连接消息中实现将路由信息指示给触发局交换 机》
其中所述配置对应的路由信息和指示配置的路由信息之间还包括步 骤：业务控制点向触发局交换机下发用于请求触发局交换机将对该多媒体 呼叫进行路由接续过程中遇到的各类事件信息上报的请求报告基本呼叫 状态模型事件消息。
其中所述路由接续之后还包括步驟:触发局交换机分别将针对不同媒 体流进行路由接续过程中遇到的各类事件信息封装在报告基本呼叫状态 模型事件消息中上报给业务控制点。
其中所述各类事件信息包括被叫用户忙、路由接续失败和主叫用户放 弃事件。
所述方法还包括所述业务控制点接收到报告基本呼叫状态模型事件 消息后下发释放呼叫消息给触发局交换机的步驟;触发局交换机接收到释 放呼叫消息后释放与业务控制点之间的通信连接。
根据本发明的另一方面，一种多媒体呼叫路由控制装置，设置于智能 网中， 包括：
路由信息配置单元，用于在电路交换域中，为同一多媒体呼叫中的不 同媒体流分别配置对应的路由信息；
路由信息指示单元,将配置的路由信息指示给负责接续该多媒体呼叫 的触发局交换机。
所述路由信息配置单元具体根据触发局交换机上报的媒体流类型列 表， 为同一多媒体呼叫中的不同媒体流分别配置对应的路由信息。
所述路由信息指示单元具体通过将路由信息封装在下发到触发局交 换机的连接消息中实现将路由信息指示给触发局交换机。
多媒体呼叫路由控制装置还包括呼叫类型判断单元，用于根据接收的 初始检测点消息中的承载能力参数和低层兼容性参数判断本次呼叫类型 是否为多媒体呼叫； 如果是则触发路由信息配置单元。
多媒体呼叫路由控制装置还包括请求报告事件单元，用于向触发局交 换机下发用于请求触发局交换机将对该多媒体呼叫进行路由接续过程中 遇到的各类事件信息上报的请求报告基本呼叫状态模型事件消息。
根据本发明的又一方面，提供一种设置于电路交换域的交换机中的多 媒体呼叫路由控制装置， 包括路由接续单元，用于根据智能网的业务控制 点指示的针对不同媒体流的路由信息， 对不同媒体流分别进行路由接续。
该装置还可以包括：媒体流类型上报单元，用于将多媒体呼叫中包含 的媒体流类型列表上报给业务控制点。
该装置还可以包括：呼叫类型体现单元，用于将要接续的呼叫类型使 用初始检测点消息中的承载能力参数和低层兼容性参数体现； 发送单元， 用于将封装有承载能力参数和低层兼容性参数的初始检测点消息发送给 业务控制点。
该装置还可以包括： 用户信息发送单元，用于将申请有智能业务的主 叫用户信息和 /或被叫用户信息封装在初始检测点消息中发送给业务控制 点。
该装置还可以包括： 事件上报单元，用于分别将针对不同媒体流进行 路由接续过程中遇到的各类事件信息封装在报告基本呼叫状态模型事件 消息中上报给业务控制点。
本发明能够达到的有益效果如下：
本发明提出由智能网中的 SCP根据同一多媒体呼叫中包括的不同媒 体流，分别为每类媒体流配置对应的路由信息，并将配置的路由信息指示 给触发局交换机，由触发局交换机根据每类媒体流的路由信息分别对每类 媒体呼叫进行路由接续。 因此实现了基于电路交换域实现多媒体通信时， SCP 能够对同一多媒体呼叫中包括的每类媒体流分别进行路由控制， 可 以促进多媒体业务在智能网电路交换域中的发展应用。
附图说明
图 1 为现有智能网对业务接续过程进行路由控制的实施例处理过程 示意图；
图 2 为现有在电路交换域中由智能网对多媒体呼叫过程进行路由控 制的实现过程示意图；
图 3为本发明的主要实现原理流程图；
图 4为本发明中 SCP区分不同呼叫类型的具体实现流程图； 图 5 为本发明触发局交换机根据多媒体呼叫触发智能业务的实现流 程图；
图 6 为本发明同一多媒体呼叫中包括有话音媒体流和视频媒体流两 种类型的具体实施过程示意图。
具体实施方式 本发明多媒体呼叫路由控制方法的设计思想是使智能网中的 SCP能 够对基于电路交换域的多媒体呼叫中的不同媒体流进行区分，并分别针对 每类媒体流分别进行路由控制，以扩展多媒体通信业务在智能网电路交换 域中的发展前景。
下面将结合各个附图对本发明多媒体路呼叫由控制方法的具体实施 方式进行详细的阐述。
请参照图 3, 该图是本发明的主要实现原理流程图， 其主要实现原理 具体如下：
步骤 S10, 在智能网的电路交换域中实现多媒体通信业务时， 智能网 中的 SCP为同一多媒体呼叫中的不同媒体流分別配置对应的路由信息； 其中传统的同一多媒体呼叫中通常包括话音媒体流和视频媒体流；随着技 术的发展， 在电路交换域有可能还存在其他的媒体流类型。
这样，对于传统的同一多媒体呼叫中包括话音媒体流和视频媒体流的 情况， SCP会直接默认同一多媒体呼叫中包括两个不同的媒体流类型： 即话音媒体流和视频媒体流，并为两种媒体流类型分别配置对应的路由信 息； 而对于以后随着技术的发展， 当同一多媒体呼叫中包括多个媒体流类 型时，触发局交换机可以将接续的多媒体呼叫中包含的媒体流类型列表上 报给 SCP, SCP进一步根据接收的媒体流类型列表分别为同一多媒体呼 叫中的不同媒体流分别配置对应的路由信息。此外，考虑到由于网络的特 殊处理， 触发局交换机可能在触发 SCP前， 已经将主叫用户发起的多媒 体呼叫中的部分的媒体流能力关闭。例如，将现有的多媒体呼叫中的话音 媒体流关闭，仅有视频媒体流， 此时， 触发局交换机可以将接续的多媒体 呼叫中实际包含的媒体流类型列表上报给 SCP, SCP进一步根据接收的 实际存在的媒体流类型列表分别为同一多媒体呼叫中实际包含的不同媒 体流配置对应的路由信息。
此外， 如果 SCP希望在触发局交换机将对该多媒体呼叫进行接续过 程中遇到的各类事件（如被叫用户忙、路由接续失败和主叫用户放弃等事 件）进行上报， 则 SCP要向触发局交换机下发用于请求触发局交换机将 对该多媒体呼叫进行路由接续过程中遇到的各类事件信息上报的请求报 告基本呼叫状态模型事件消息 （ RRBE , Request Report BCSM Event )。 步骤 S20, SCP将配置给每类媒体流的路由信息分别指示给负责接续 该多媒体呼叫的触发局交换机； 其中 SCP可以通过将路由信息封装在下 发到触发局交换机的连接消息 （Connect ) 中来实现将路由信息指示给触 发局交换机的目的。
步骤 S30, 触发局交换机根据 SCP指示的针对不同媒体流的路由信 息，对不同媒体流分别进行路由接续，如可以基于综合业务数字网用户部 分（ISUP， ISDN User Part )信令根据话音媒体流的路由信息对话音媒体 流进行路由接续； 及基于 ISUP信令或会话初始协议（SIP， Session Initial Protocol )信令根据视频媒体流的路由信息对视频媒体流进行路由接续。
假如上述 SCP已经向触发局交换机下发 RRBE消息， 则触发局交换 机在根据不同媒体流的路由信息分别对每类媒体呼叫进行路由接续时，要 分别将针对每类媒体呼叫进行路由接续时遇到的各类事件信息封装在报 告基本呼叫状态模型事件消息（ ERB , Event Report BCSM )中上报给 SCP。 SCP 接收到触发局交换机上报上来的 ERB 消息后， 下发释放呼叫 ( ReleaseCall ) 消息给触发局交换机， 触发局交换机接收到 ReleaseCall 消息后释放与 SCP之间的通信连接。
其中在智能网的呼叫类型中一般包括纯语音呼叫类型和多媒体呼叫 类型， SCP区分不同呼叫类型的过程请具体参照图 4, 其实现过程如下： 步骤 S11 ,触发局交换机将要接续的呼叫类型使用但不限于使用初始 检测点 IDP消息中的承载能力参数（Bearer Capability )和低层兼容性参 数 ( LLC, Low Layer Compatibility)来体现。
步骤 SI 2,触发局交换机将封装有 Bearer Capability参数和 Low Layer Compatibility参数的 IDP消息发送给 SCP;
步骤 S 13 , SCP根据接收的 IDP消息中的 Bearer Capability参数和 Low Layer Compatibility参数来判断本次呼叫类型是否为多媒体呼叫类型， 只 有为多媒体呼叫时才进行上述图 3所示的处理过程。
其中触发局交换机根据多媒体呼叫触发智能业务的过程请具体参照 图 5所示， 其具体实现过程如下：
步骤 S111 , 负责接续该多媒体呼叫的触发局交换机根据参与该多媒 体呼叫的主叫用户信息和被叫用户信息获知主叫用户和 /或被叫用户申请 有智能业务；
步骤 S112, 触发局交换机将申请有智能业务的主叫用户信息（如主 叫用户号码信息 )和 /或被叫用户信息（如被叫用户号码信息）封装在 IDP 消息中发送给 SCP;
步骤 S113, SCP根据接收的 IDP消息中封装的主叫用户信息和 /或被 叫用户信息在自身数据库中索引得到与主叫用户和 /或被叫用户申请的智 能业务相关的智能业务信息；
步骤 S114, SCP根据上述得到的智能业务信息运行对应的智能业务 逻辑。
下面以同一多媒体呼叫中包括有话音媒体流和视频媒体流两种类型 为例对本发明的具体实施过程进行详细阐述，具体请参照图 6所示，其实 现的思想依据是：
触发局交换机在主叫或者被叫接续流程中触发智能网时，通知智能网 当前呼叫是一个普通的话音呼叫， 还是一个多媒体呼叫；
对于多媒体呼叫， 智能网中的 SCP在下发的 Connect消息中， 可以 指明针对该同一多媒体呼叫中的不同媒体流（如话音媒体流和视频媒体 流）采取不同的路由；
触发局交换机在接收到智能网 SCP下发的相应指示信息后， 可以根 据上述指示，将同一多媒体呼叫中的不同媒体流进行不同的路由接续； 并 触发局交换机可以根据同一多媒体呼叫中话音媒体流与视频媒体流 的不同路由接续情况， 向 SCP分别上报相关的事件信息。
图 6的具体实现过程如下：
a、 主叫用户发起呼叫时， 触发局交换机根据主叫用户或者被叫用户 的号码以及其它智能数据， 来得知主叫用户或者被叫用户申请有智能业 务。 则触发局交换机按照智能呼叫处理流程， 向智能网中的业务控制点 ( SCP )发送初始检测点 （IDP ) 消息， 触发该智能流程到智能网； 从而 建立触发局交换机与智能网之间的控制关系， 其中触发局交换机发送的 IDP 消息中包含有申債有智能业务的主叫用户和 /或被叫用户号码信息及 标识该呼叫是否为多媒体呼叫的承载能力参数和低层兼容性参数。
b、 SCP在处理接收到的 IDP消息时， 判断 IDP消息中包含的承载能 力参数 ( Bearer Capability ) 和低层兼容性参数 （LLC , Low Layer Compatibility )是否标识为一个多媒体呼叫 （这里后续流程只针对多媒体 呼叫类型， 纯语音呼叫处理过程属于现有技术， 不予赘述）， 并根据 IDP 消息中申请有智能业务的主叫用户和 /或被叫用户信息及 SCP中登记的数 据库信息， 查询得到与主叫用户和 /或被叫用户申请的智能业务有关的智 能业务信息， 然后根据得到的智能业务信息运行对应的智能业务逻辑。
c、 如果智能网还希望触发局交换机报告在呼叫接续过程中遇到的各 类事件（如， 被叫用户忙、 路由接续失败、 主叫用户放弃事件等等）， 以 便于触发局交换机在进行路由接续处理时（如主叫用户释放呼叫和进行重 新路由等）， 能够依次发送基本呼叫状态模型事件请求报告 （RJ BE, request report BCSM event )给 SCP。 通过下发 RRBE消息， 智能网配置 希望触发局交换机报告相应事件的事项。
d、智能网中的 SCP下发 connect消息，其中 connect消息中包含有针 对话音媒体流和视频媒体流的不同路由控制信息及路由参数。例如， 当主 叫用户发起一个多媒体呼叫时， 但被叫用户是一个 2G用户， 不支持视频 媒体流时， 于是智能网识别到这种情况后，就将话音媒体流正常路由到被 叫用户， 而将视频媒体流路由到一个视频播放平台。
6和 触发局交换机根据 Connect消息中分别包括的针对话音媒体 流和视频媒体流的路由地址信息，分别对多媒体呼叫中的话音媒体流与视 频媒体流进行路由接续。即将一个多媒体呼叫分成独立的话音媒体流和视 频媒体流， 分别按照各自的路由信息进行路由接续。 在上述例子中， 触发 局交换机分别与被叫用户建立话音媒体流通信，同时与视频播放平台建立 视频媒体流（可以基于 ISUP信令方式为例建立话音媒体流接续过程， 并 基于 ISUP信令或 SIP信令方式为例建立视频媒体流接续过程 )通信。 当 话音媒体流和视频媒体流建立成功后，触发局交换机在将相应媒体流传送 到主叫用户侧时， 仍然是组合成一个多媒体呼叫的形式。 在上个例子中， 此时主叫用户可以在一个多媒体呼叫中，在与被叫用户进行语音通话的同 时， 还可以看到视频播放平台中为其播放的视频图像信息。
g、 触发局交换机由于需要将同一个多媒体呼叫中的两个不同媒体流 分别进行接续 ,因此可能造成话音媒体流与视频媒体流的接续过程中存在 各自不同的事件。如话音媒体流通信已经接通，但是视频媒体流通信接续 存在错误等等。 因此需要在进行 ERB消息上报给 SCP时， 分别区分不同 的媒体流中所遇到的事件以及相应的原因。 当呼叫结束，如主叫用户挂机 事件发生时， 上述智能网如果在 RRBE消息中配置了这个事件， 则触发 局交换机通过报告基本呼叫状态模型事件（ERB )消息给触发局交换机实 现将遇到的各类事件上报给智能网 SCP的目的。
h、 SCP接收到触发局交换机上报的 ERB 消息后， 下发释放呼叫
( ReleaseCall )消息， 通知触发局交换机释放当前与智能网之间的呼叫控 制。
由此可见本发明多媒体呼叫路由控制方法可以使得智能网在多媒体 呼叫过程中，根据不同的媒体进行不同的接续控制，并获得不同的接续情 况。
由于本发明可以将同一个多媒体呼叫中的不同媒体流转向不同的目 的点，从而为用户提供了丰富多样的内容源，满足了用户的不同感官需求。 例如，对于主叫用户发起的多媒体呼叫中，可以为主叫用户提供与被叫用 户通话的话音媒体， 同时还可以播放来自其他信息源的视频媒体。
本发明的多媒体呼叫路由控制装置设置于智能网中， 包括： 路由信息配置单元，用于在电路交换域中，为同一多媒体呼叫中的不 同媒体流分别配置对应的路由信息；
路由信息指示单元,将配置的路由信息指示给负责接续该多媒体呼叫 的触发局交换机。
本发明的实施例中，所述路由信息配置单元具体根据触发局交换机上 报的媒体流类型列表，为同一多媒体呼叫中的不同媒体流分别配置对应的 路由信息。
所述路由信息指示单元具体通过将路由信息封装在下发到触发局交 换机的连接消息中实现将路由信息指示给触发局交换机。 多媒体呼叫路由控制装置还包括呼叫类型判断单元，用于根据接收的 初始检测点消息中的承载能力参数和低层兼容性参数判断本次呼叫类型 是否为多媒体呼叫； 如果是则触发路由信息配置单元。
多媒体呼叫路由控制装置还包括请求报告事件单元，用于向触发局交 换机下发用于请求触发局交换机将对该多媒体呼叫进行路由接续过程中 遇到的各类事件信息上报的请求报告基本呼叫状态模型事件消息。
本发明还提供设置于电路交换域的交换机中的多媒体呼叫路由控制 装置， 包括路由接续单元，用于根据智能网的业务控制点指示的针对不同 媒体流的路由信息， 对不同媒体流分别进行路由接续。
该装置还可以包括：媒体流类型上报单元，用于将多媒体呼叫中包含 的媒体流类型列表上报给业务控制点。
该装置还可以包括：呼叫类型体现单元，用于将要接续的呼叫类型使 用初始检测点消息中的承载能力参数和低层兼容性参数体现； 发送单元， 用于将封装有承载能力参数和低层兼容性参数的初始检测点消息发送给 业务控制点。
该装置还可以包括：用户信息发送单元，用于将申请有智能业务的主 叫用户信息和 /或被叫用户信息封装在初始检测点消息中发送给业务控制 点。
该装置还可以包括：事件上报单元，用于分别将针对不同媒体流进行 路由接续过程中遇到的各类事件信息封装在报告基本呼叫状态模型事件 消息中上报给业务控制点。 本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权 利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在 内。

Claims

权 利 要 求
1、一种智能网中多媒体呼叫路由控制方法， 其特征在于， 包括步驟： 在电路交换域中，业务控制点为同一多媒体呼叫中的不同媒体流分别 配置对应的路由信息；
将配置的路由信息指示给负责接续该多媒体呼叫的触发局交换机； 触发局交换机根据收到的针对不同媒体流的路由信息，对不同媒体流 分别进行路由接续。
2、 如权利要求 1所述的多媒体呼叫路由控制方法， 其特征在于， 所述配置对应的路由信息之前还包括负责接续多媒体呼叫的触发局 交换机将多媒体呼叫中包含的媒体流类型列表上报给业务控制点的步骤； 所述配置对应的路由信息具体包括：业务控制点根据触发局交换机上 报的媒体流类型列表，为同一多媒体呼叫中的不同媒体流分别配置对应的 路由信息。
3、如权利要求 1或 2所述的多媒体呼叫路由控制方法，其特征在于， 所述不同媒体流包括话音媒体流和视频媒体流。
4、 如权利要求 3所述的多媒体呼叫路由控制方法， 其特征在于， 所 述路由接续包括:触发局交换机基于综合业务数字网用户部分信令根据话 音媒体流的路由信息对话音媒体流进行路由接续。
5、 如权利要求 3所述的多媒体呼叫路由控制方法， 其特征在于， 所 述路由接续包括:触发局交换机基于综合业务数字网用户部分信令或会话 初始协议信令根据视频媒体流的路由信息对视频媒体流进行路由接续。
6、如权利要求 1或 2所述的多媒体呼叫路由控制方法，其特征在于， 所述配置对应的路由信息之前还包括步骤：
所述触发局交换机将要接续的呼叫类型使用初始检测点消息中的承 载能力参数和低层兼容性参数体现； 并
将封装有承载能力参数和低层兼容性参数的初始检测点消息发送给 业务控制点；
所述业务控制点根据接收的初始检测点消息中的承载能力参数和低 层兼容性参数判断本次呼叫类型是否为多媒体呼叫；如果是，则进入路由 信息的配置过程。
7、 如权利要求 6所述的多媒体呼叫路由控制方法， 其特征在于， 所 述呼叫类型包括纯语音呼叫和多媒体呼叫。
8、如权利要求 1或 2所述的多媒体呼叫路由控制方法，其特征在于， 所述配置对应的路由信息之前还包括步骤：
触发局、所述负责接续该多媒体呼叫的触发局交换机将申请有智能业 务的主叫用户信息和 /或被叫用户信息封装在初始检测点消息中发送给业 务控制点；
所述业务控制点根据接收的初始检测点消息中封装的主叫用户信息 和 /或被叫用户信息在自身数据库中索引得到与主叫用户和 /或被叫用户 申请的智能业务相关的智能业务信息；
所述配置对应的路由信息是在根据得到的智能业务信息运行对应的 智能业务逻辑时进行。
9、如权利要求 1或 2所述的多媒体呼叫路由控制方法，其特征在于， 所述将配置的路由信息指示给负责接续该多媒体呼叫的触发局交换机具 体包括：业务控制点通过将路由信息封装在下发到触发局交换机的连接消 息中实现将路由信息指示给触发局交换机。
10、如权利要求 1或 2所述的多媒体呼叫路由控制方法，其特征在于， 所述配置对应的路由信息和将配置的路由信息指示给负责接续该多媒体 呼叫的触发局交换机之间还包括步驟：业务控制点向触发局交换机下发用 于请求触发局交换机将对该多媒体呼叫进行路由接续过程中遇到的各类 事件信息上报的请求报告基本呼叫状态模型事件消息。
11、 如权利要求 10所述的多媒体呼叫路由控制方法， 其特征在于， 所述路由接续之后还包括步骤：触发局交换机分别将针对不同媒体流进行 路由接续过程中遇到的各类事件信息封装在报告基本呼叫状态模型事件 消息中上报给业务控制点。
12、 如权利要求 11所述的多媒体呼叫路由控制方法， 其特征在于， 所述各类事件信息包括被叫用户忙、 路由接续失败和主叫用户放弃事件。
13、 如权利要求 11所述的多媒体呼叫路由控制方法， 其特征在于， 还包括所述业务控制点接收到报告基本呼叫状态模型事件消息后下发释 放呼叫消息给触发局交换机的步驟;触发局交换机接收到释放呼叫消息后 释放与业务控制点之间的通信连接。
14、一种多媒体呼叫路由控制装置， 其特征在于， 该装置设置于智能 网中， 包括：
路由信息配置单元，用于在电路交换域中，为同一多媒体呼叫中的不 同媒体流分別配置对应的路由信息；
路由信息指示单元，用于将配置的路由信息指示给负责接续该多媒体 呼叫的触发局交换机。
15、 如权利要求 14所述的多媒体呼叫路由控制装置， 其特征在于， 所述路由信息配置单元具体根据触发局交换机上报的媒体流类型列表，为 同一多媒体呼叫中的不同媒体流分别配置对应的路由信息。
16、如权利要求 14或 15所述的多媒体呼叫路由控制装置，其特征在 于，还包括： 呼叫类型判断单元， 用于根据接收的初始检测点消息中的承 载能力参数和低层兼容性参数判断本次呼叫类型是否为多媒体呼叫；如果 是则触发路由信息配置单元。
17、如权利要求 14或 15所述的多媒体呼叫路由控制装置，其特征在 于，所述路由信息指示单元具体通过将路由信息封装在下发到触发局交换 机的连接消息中实现将路由信息指示给触发局交换机。
18、如权利要求 14或 15所述的多媒体呼叫路由控制装置，其特征在 于， 还包括： 请求报告事件单元， 用于向触发局交换机下发用于请求触发 局交换机将对该多媒体呼叫进行路由接续过程中遇到的各类事件信息上 报的请求报告基本呼叫状态模型事件消息。
19、一种多媒体呼叫路由控制装置， 其特征在于， 该装置设置于电路 交换域的交换机中， 包括路由接续单元，用于根据智能网的业务控制点指 示的针对不同媒体流的路由信息， 对不同媒体流分别进行路由接续。
20、 如权利要求 19所述的多媒体呼叫路由控制装置， 其特征在于， 还包括：呼叫类型上报单元，用于将多媒体呼叫中包含的媒体流类型列表 上报给业务控制点。
21、如权利要求 19或 20所述的多媒体呼叫路由控制装置，其特征在 于， 还包括：
呼叫类型体现单元，用于将要接续的呼叫类型使用初始检测点消息中 的承载能力参数和低层兼容性参数体现；
发送单元，用于将封装有承载能力参数和低层兼容性参数的初始检测 点消息发送给业务控制点。
22、如权利要求 19或 20所述的多媒体呼叫路由控制装置，其特征在 于， 还包括：
用户信息发送单元， 用于将申请有智能业务的主叫用户信息和 /或被 叫用户信息封装在初始检测点消息中发送给业务控制点。
23、 如权利要求 19所述的多媒体呼叫路由控制方法， 其特征在于， 还包括：事件上报单元，用于分别将针对不同媒体流进行路由接续过程中 遇到的各类事件信息封装在报告基本呼叫状态模型事件消息中上报给业 务控制点。
PCT/CN2006/001255 2005-06-08 2006-06-08 A route controlling method of multimedia call and the apparatus thereof Ceased WO2006131076A2 (en)

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