IP电话网关主要功能为连接传统电话网与IP网络，完成多路呼叫的信令协议和语音格式的转换。
The main function of gateways is to connect IP network and traditional phone system, and provide multi-call signaling exchanging and the conversion of voice formats.
可通过信令链路将 信令消息，比如用于呼叫建立、查询和应答监控消息以及话务量控制，从网络中的一个SS7节点路由到另一个 SS7 节点。
Signaling messages such as supervisory messages for call setup, query and reply and traffic control, will be routed through the signaling links from one SS7 node to another SS7 node in the network.
本建议规定了在N - ISDN用户-网络接口上用于明确呼叫转移(ECT)补充业务的DSS1信令要求。
This Recommendation specifies the DSS 1 signalling requirement on the N-ISDN user-network interface for the Explicit Call Transfer (ECT) supplementary service.
本建议规定了在N - ISDN用户-网络接口上用于明确呼叫转移(ECT)补充业务的DSS1信令要求。
This Recommendation specifies the DSS 1 signalling requirement on the N-ISDN user-network interface for the Explicit Call Transfer (ECT) supplementary service.
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