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    • 7. 发明申请
    • SIP-BASED CALL SESSION SERVER AND MESSAGE-ROUTING METHOD
    • 基于SIP的电话会议服务器和消息路由方法
    • WO2012007924A1
    • 2012-01-19
    • PCT/IB2011/053158
    • 2011-07-14
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)SAMAVEDAM, SaiCUNNINGHAM, Kevin
    • SAMAVEDAM, SaiCUNNINGHAM, Kevin
    • H04L29/06H04L29/08
    • H04L65/1006H04L45/22H04L45/28
    • A method and SIP-based Call Session Server (50) for routing SIP messages. A Network and Transport layer (53) receives an incoming SIP message and forwards it to one of a plurality of SIP message routing process instances (56a-56n) in a SIP Message Routing Framework (52). The receiving SIP message routing process instance determines a Routing-Key based upon at least one header field in the incoming message, and based upon the Routing-Key, forwards the incoming message to a selected one of a plurality of Back-to-Back User Agent (B2BUA) instances (54a~54n) in a Call Session Control Framework (51). The selected B2BUA instance creates an outgoing SIP message utilizing the Routing-Key to generate a From-Tag in an outgoing request message, or to generate a To-Tag in an outgoing response message, and then forwards the outgoing message to the Network and Transport layer (53), which transmits the outgoing message.
    • 一种用于路由SIP消息的基于SIP的呼叫会话服务器(50)。 网络和传输层(53)接收传入的SIP消息并将其转发到SIP消息路由框架(52)中的多个SIP消息路由进程实例(56a-56n)之一。 接收SIP消息路由过程实例基于传入消息中的至少一个报头字段来确定路由密钥,并且基于路由密钥,将传入消息转发到多个背对背用户中的所选择的一个 呼叫会话控制框架中的代理(B2BUA)实例(54a〜54n)(51)。 所选择的B2BUA实例使用路由密钥创建出站SIP消息,以在出局请求消息中生成从标签,或者在出局响应消息中生成To-Tag,然后将传出消息转发到网络和传输 层(53),其发送传出消息。