Free download CSipSimple APK for Android, PC. Latest version is 1.02.03, update at September 17, 2015
CSipSimple version 1.02.03 is only one variant.
OpenSource (GPL) project for SIP on Android. * High performances* Rewriting/filtering rules for integration with Android* SIP SIMPLE for Messaging* Record calls* Simple configuration* Fancy UI inspired from 4.x Holo...