Hello Bulgaria app for iPhone and iPad

Hellobulgaria is designed specifically to leverage the iPhones unique capabilities and easy way to make a iPhone voip call by using iPhone devices. Featuring a comfortable and simple user interface iPhone sip client lets you connect your iphone to standard landline or mobile phones.

Features:

Making and receiving calls
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.