Mtcalls Dialer Make Calls to other MT Calls users and calls to everyone else, using WiFi, 3G . This Softphone also turns your phone into a VoIP phone, so you can make phone calls over the internet at anytime, and from almost anywhere.
Features:-
•SIP protocol support
•Codecs supported: g711,GSM
•Call Status Indicator
•Speaker
•Mute
•Save / Edit Username & Password
•Work with all standard SIP SoftSwitches
•Silence Suppression
•Echo Cancellation
•Registration Timeout
System Requirements:
Supported : iOS 5.0 or later.This Application is optimized for iPhone 5.
Internet Connectivity: Wi-Fi,3G.