iKcon Open SIP Dialer is a FREE audio/video calls and text messaging app.
Make FREE voice and video calls to all your friends around the world.
iKcon Open SIP Dialer key features:
* FREE voice and video calls over 3G, 4G or Wi-Fi connection.
* high definition audio and video calls
* free WORLD Wide CHAT Service communicate instantly
* audio conference calls with various participants
* pictures and file sharing
* secure communication (encrypted chats and calls)
* transfer credit to FRIENDS and FAMILY from anywhere FREE
* invite FRIENDS and FAMILY from anywhere FREE
* low battery usage with high reliability / stability
* low latency
* supports opus, speex, PCMU, PCMA, iLBC, iSAC, L16, G722, G729 and GSM audio codecs
* supports VP8, H264 and H265 video codecs