Free2Calls Mobile Dialer is a softphoneapplication to make VoIP calls from mobile phone.
Free2Calls dialer can run smoothly in any version of androidphone
Works In Lowbandwidth,Low Data Consumption,
Codec Support: Supports G729, G711, GSM and AMR codecs
IP Traversal: Runs behind NAT and on private IP
Protocol: Session Initiation Protocol
Compatibility with All softswitches