Gama Softphone has come up for iPhone based Mobile phones. Gama Softphone lets the callers make calls through their standard Mobile phones. The iPhone dialer
works just like standard Softphones i.e. it gets registered on the server and then let the authentic caller makes calls. The biggest advantage
that this iPhone dialer provides is the huge base of potential customers who can now make calls using their standard mobile phones. The mobile
phones need to be connected to the internet either through Wi‐Fi/3G/4G.

Gama Softphone is meant for service providers who can use this dialer and get it integrated with their existing SIP servers.
This softphone also turns your iPhone into a VoIP phone, so you can make cheap or even free phone calls over the internet at anytime, and from almost anywhere.
Gama Softphone is designed specifically to leverage the iPhone's unique capabilities and easy way to make a iPhone voip call by using iPhone devices.
Featuring a comfortable and simple user interface Gama Softphone lets you connect your iphone to standard landline or mobile phones.

Features:
Customized with company logo/brand name
Unlimited user license
SIP protocol support
Making and receiving calls
Background support - receive calls while the app is in the background, switch between apps and stay on the call.
Codecs supported: G729, G722, G711,GSM
Call timer
Recent Call
Phone Book (Synchronize with Phone Address Book)
Add contact from App
Local signaling (Dial tone, busy, ring back, etc.)
Redial
Speaker
Mute
Touch Tone
Silence Suppression
Echo Cancellation
Registration Timeout
Proxy Setting
STUN Server