RingtoWorld 4+

RingtoWorld is a promising mobile dialer that every VoIP Provider wishes to leverage on. It is a smart app that allows mobile users to make VoIP calls anywhere across the world with limited connectivity via 3G/Edge/Wi-Fi/GPRS, etc. The beauty of this app is reflected in its ability to support even the minimum iOS version of 3.2 on iPhone, iPad, iPod, etc.

RingtoWorld Features:
Flexibility with codecs
Dynamic interface
Detailed call history
Uses SIP based protocol for signaling
Runs behind NAT and private IP
Auto sync of balance
Loud speaker
Hold
Real-time SIP status messages
Address book synchronization
Supportive to all SIP standard switches
Limits bandwidth usage by silent suppression and noise comfort generation
Furthermore, it can be upgraded to latest versions as and when released with ease. With RingtoWorld, you will no longer feel the distance from your target audience.