摘要
软交换为下一代网络的核心,提供呼叫信令接续和其他的一个功能集合体。等同与程控交换是电路交换网络的核心。由于IPV4地址的短缺,目前大多数网络用户都处在私网设备后面。而软交换中对于语音和视频流要穿越私网设备到达呼叫对端进行双方流畅的互通成为首要要解决的问题,本文就是提供基于SIP协议的软交换如何穿越私网设备的解决方案。
Softswitch is the kernel of NGN,it provides call signal and others,h likes that circuit switch is the kernel of circuit switch network. Because ipv4 address is hard up,at present most network user is behind the private network device.So call signal,audio frequency and video frequency must traverse private network device.The text provides the solution how to sip softswith traverse private network.
出处
《电脑知识与技术》
2006年第5期72-73,共2页
Computer Knowledge and Technology
