Rayyan Tel Dialer is a very easy and user friendly Android dialer for Mobile VoIP call.
The dialer can run smoothly in any version of android phone.
This small and easy install able app help you to connect with your service provider provided soft switches quickly.
Rayyan Tel Dialer required a minimum bandwidth for connecting and originating VoIP calls.
User may charge through their telecom operators for data services. It’s run smoothly in any private network.