Asalfone app for iPhone and iPad

Asalfone Mobile allows the user to make calls over a Wi-Fi connection.
Asalfone Mobile is an international calling service that delivers reputable solutions intended to make communicating with family and friends easy, exciting and affordable. Our features are perfect for modern consumers interested in a hassle free, overseas communication service.

Features :
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

System Requirements:

Supported : iOS 7.0 or later.This Application is optimized for iPhone 5 .
Internet Connectivity: Wi-Fi,3G.