SIP与NGN网络具有的良好契合性，使其成为NGN 网络中最为重要的会话控制协议。
SIP is naturally in harmony with NGN and it is one of the most important session control protocols in NGN network.
当3GPP开始需求在他们的网络中实现IP的方法时，他们发方法开始需求觉首先要对呼叫和会话控制中单一共有的协议进行标准化标准化进行会话。
As the 3GPP began looking at ways to implement IP in their networks, they found a need to standardize first of all on one implement standard network common protocol for call and session control.
SIP是一种应用层控制信令协议，用于创建、修改和结束与一个或多个参与者的会话。
The Session Initiation Protocol (SIP) is an application-layer control (signaling) protocol for creating, modifying and terminating sessions with one or more participants.
网络借鉴了电路级代理工作的基本原理，以应用协议的会话数据流为对象，对信息系统进行控制和管理。
The concept adopted basic theory of circuit-level proxy. Taking session data flow of application protocols as its objective, VAN controlled and managed integrated information systems.
为了支持多媒体业务，提供呼叫建立、会话控制、接纳控制等功能的信令协议必不可少。
To support the multimedia operation and supply the function such as call building and session control, the signal protocol is absolutely necessarily.
会话发起协议(SIP)是IP网络应用层的控制协议，用于建立、修改和终止两个或多个参与者之间的会话。
The session Initiation protocol (SIP) is an application-layer control protocol for creating, modifying and terminating sessions among two or more parties.
会话启动协议是由IETF提出的一个应用层的信令控制协议，用来创建、修改和终结一个或多个参加者参加的会话进程。
The session Initiation protocol (SIP) is an application-layer control (signaling) protocol distributed by IETF for creating, modifying, and terminating sessions with one or more participants.
会话启动协议是由IETF提出的一个应用层的信令控制协议，用来创建、修改和终止一个或多个参加者参加的会话进程。
The session Initiation protocol (SIP) is an application-layer control (signaling) protocol distributed by IETF for creating, modifying and terminating sessions with one or more participants.
该协议可以用于开始会话、邀请成员参加由其他方式做广告的会话，或者利用多点控制器开始多方通话。
The protocol may be used to initiate sessions, invite members to sessions advertised by other means or initiate multiparty calls using a multipoint control unit.
基于SIP协议的多媒体会议管理系统以SIP协议为会话连接的基础，同时提供发言权控制功能，并且与多媒体应用分离。
SIP-based multimedia conference manage system USES SIP as its session connection, provides floor control and is independent of multimedia.
SIP是当前IP电话的会话建立和信令控制的基础协议，SIP应用也是实现基于IP网络的语音等多种多媒体应用的基本途径。
SIP is currently the basic signaling and call setup protocol for IP telephony, and SIP applications are the basic way to provide voice and other multimedia services over IP.
SIP是当前IP电话的会话建立和信令控制的基础协议，SIP应用也是实现基于IP网络的语音等多种多媒体应用的基本途径。
SIP is currently the basic signaling and call setup protocol for IP telephony, and SIP applications are the basic way to provide voice and other multimedia services over IP.
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