network art网络艺术networkn.网点；网络；网状系统；广播公司network - based growth网络化成长network management point网路管理点network addressable unit网络寻址部件network service platform网络服务平台network experiment system网络实验系统network anti-corruption网络反腐network anonymous sources网络匿名信源network interface machine网络接口机network initial condition网络初始条件network data transmission网络数据传输

1. Secondly, the article introduces the structure of the two kinds of the signaling protocol in IP phone and main functions they can reach.
   其后分别介绍了基于两种信令协议的网络电话系统构成以及系统所能实现的主要功能。