MORPhoneBy Kolmisoft ( Free )
It is a generic SIP client for Android devices optimized for MOR Softswitch.Supported Audio Codec:G.711 (PCMA , PCMU), Speex, GSM, G.722, ISAC, ILBC, G.729, SILK, G726, opus, Codec2Supported Video Codec:H.264, H.263-1998, VP8Video will work on ...