iUcall

iUcall dialer is a mobile app compatible with all Android OS smart phones, which enables the users for making VoIP calls from their mobile to anywhere around the world. Calls can be made from data enabled mobile devices with internet connectivity via 3G/Edge/Wifi.
After installing the users need to provide the SIP Username and Password for registering to the app.
Technical Features
Supports G729,PCMU, PCMA codecs
It uses SIP based protocol for Signaling
It supports all SIP standard switches
It RUNS behind NAT or private IP
Unremitting call connection even in low bandwidth areas
The jitter buffer technology ensures smooth voice during the call
Integration of native contact book
The silent suppression and comfort noise generation feature reduces the bandwidth usage
Auto balance display
Actual SIP response message display

UI Features
User friendly interface
Recent call history display
Balance display
Call duration display
Features to make the call mute, enable the speaker mode, view the keypad, increase and decrease the media volume, enable the Bluetooth during a call