winsip是一种用来对IP-PBX（如：Asterisk、Freeswitch等）进行压力测试的工具，可以得到IP-PBX单位时间内的呼叫处理能力。-Winsip is a kind of tool used for IP- PBX (such as an Asterisk, Freeswitch, etc.) to conduct stress tests of the tool, you can get IP PBX- call handling capacity per unit time.