GTell app for iPhone and iPad

GTell is offering VoIP Calls from data enabled mobile phones (2G/3G/4G or WiFi) to any landline or mobile devices around the world.

Features:
- GTell Supports all major Codecs and standard SIP RFC.
- GTell proivdes Real time SIP status.
- GTell proivdes VoIP Calls via Wi-Fi, 2G/3G/4G and more .
- Works in all Countries and all Networks across firewalls.
- Smooth voice quality
- Echo cancellation for clarity of voice are 100%.
- Uses very less bandwidth and low network area with maximum voice quality.
- GTell is more feasible and elegant to work with.
- GTell Supports Nat Travesal.