SithSip VoIP/SIP ClientBy Sithagi Development ( Free )
SithSip is VoIP/SIP Dialer that allows you to make and test VoIP call with your own Soft Switch or with any VoIP Providers Available CodecsPCMA ,PCMU,GSM,iLBC,Speex-NB,Speex-WB,Speex-UWB,OPUS,G722,G729Support STUN/TURN