iTalkMobile app for iPhone and iPad

iTalkMobile is a simple to use SIP softphone for iPhone and iPad.

Allowing users to easily register on a VoIP system.You can call on WiFi and 3G networks from anywhere in the world.

iTalkMobile Highlights:

1.Compatible with any SIP-based Softswitch
2.Connectivity through WIFI/3G/EDGE
3.Outgoing Incoming VoIP Calls
4.iPhone Address Book Integration
5.Call History
6.Works in Background Mode
7.Excellent Voice Quality through supported Audio Codecs G711a, G711u, G722, GSM, Speex, G729
8.Easily Configurable Settings
9.Bluetooth Headset Support
10.Customizable Ringtones
11.Call Display and Voicemail Indicator
12.Speakerphone, Mute and Hold Functions
13.Call Recording
14.Favorites/Speed Dial
15.Hold/Resume/Redial

Notes:

Please check with your network operator before enabling the VoIP over 3G app. Some mobile network operators may prohibit or restrict using VoIP over their networks, or they may impose additional charges.