Kolltwo is an ultimate mobile VoIP application for experiencing high quality VoIP calls at low rates. The mobile application is available on iOS. End users can save big on their monthly phone bills by simple use of this application. The combination of intuitive UI and easy-to-use features will enhance the user experience greatly. It is a must have mobile application for end users who would like to take their VoIP calling experience to a whole new level.
Salient Features:
* SIP softswitch compatibility
* NAT traversal on Private IP
* Multi-OS Support
* Inbuilt noise & echo cancellation technology
* Low bandwidth consumption
* Address book integration
Kolltwo also supports codecs such as G729, PCMU and PCMA. Try Kolltwo today!