说明：  这是一款基于C＃的简单SIP（VOIP）呼出电话。此SIP应用程序已开发，目前正在使用“帮助 - >呼叫支持”。这个想法是创建一个零配置，非常简单的呼出电话，这就是它现在的样子（虽然支持基于IP的传入呼叫;例如：sip：test @ ip：7666,7666是端口SIP_Call out运行） 。
(This is a simple SIP (VOIP) outgoing telephone based on C#. This SIP application has been developed and is currently using Help - > Call Support. The idea is to create a zero-configuration, very simple outgoing phone, which is what it is now (although it supports IP-based incoming calls; for example, sip: test @ ip: 7666, 7666 is port SIP_Callout running).)