MizuDroid

With the MizuDroid free softphone for Android you can make VoIP calls to users anywhere in the world using any VoIP service provider, SIP softswitch or your own PBX. Features include clear voice quality using industry standard codec such as G.729 and wideband codec, auto configuration, VoIP encryption and tunneling, IM, call history and address book, call forward, transfer and conference.