To achieve an Android platform of network telephone, put forward a VoIP system design scheme based on the PJSIP stack, it conforms to the Android the NDK development specification, use Java language development, the upper of lower level using pure C language PJSIP libraries to develop its protocol stack, and using JNI connections fluctuation two parts, is described in the PJSIP principle, and as a starting point, analysis and design of a specific VoIP system, at last, through testing, this scheme can well complete session, response, communication, as well as in the session log out function, meet the design requirements,
[PS -- source: "China metrology this network] acquired
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