CaLLiMore is a Mobile Dialer application that allows to make VoIP calls from any of the Android devices and it uses 4G/LTE/3G/Edge/Wi-Fi Internet connectivity.
CaLLiMore uses SIP protocol based for signaling
Supports G729, PCMU, and PCMA codecs
Runs behind NAT or Private IP
User Friendly Interface
Auto Sync of Balance
Real Time Sip status messages
Address book integration