Linphone is an open source internet SIP phone or Voice Over IP phone (VoIP) WIFI/3G, with video calls support for ARMv7 phones.Main features:-Audio with the following codecs: speex (narrow band and wideband), iLBC, G711, GSM, G722, Silk-Video with VP8, mpeg4 and H264 codecs (ARMv7 only)-Audio multicall and conferencing-SRTP media encryption-Echo cancellation-Address book integration-Call historyRecent changes:-Audio multicall and conferencing-SRTP media encryption-Silk audio codec-Bug fixesContent rating: Everyone
What's new in version 1.2.2
-Audio multicall and conferencing-SRTP media encryption-Silk audio codec-Bug fixes
ReleaseDecember 10, 2011
Date AddedDecember 10, 2011
Operating SystemsAndroid, Android 2.1
Additional RequirementsCompatible with 2.1 and above.