sip-sdk
There are 3 repositories under sip-sdk topic.
aminrahkan/SipApp
SipApp is a simple application to demonstrate how to create voice call android application based on sip server
kastravec/risip
Cross-platform Qt C++ and QML APIs for Pjsip
swhors/simpson_sip_library
sip library using peg algorithm and includes soft-phone source code.