CSipSimple 是个款通用的支持SIP协议的互联网电话软件，可以在支持andriod的平板，手机上使用。支持语音编码: G.711 aLaw/uLaw, G.722.1, G.722, SPEEX, SPEEX-WB, AMR-WB, GSM, iLBC, G.729. 支持STUN, Outbound proxy server, Qos，VAD，AEC，AGC，CNG等众多功能和标准。
License: GNU General Public License v3.0
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