FillyTalk

FillyTalk is a mobile dialer or application which makes Internet calls with Apple iPhones uses 3G/Edge/wifi Internet connectivity.

Features
FillyTalk uses SIP protocol based for signaling.
FillyTalk Supports all codecs.
FillyTalk run Behind NAT or private IP.
User Friendly Interface.
Real Time Sip status messages.
Call History.
Loud Speaker.
Address book integration.
Compatible with all sip standard switches.