Most of your customers have Viber installed.
No need to waste time and nerves for configuring IP phone.
Viber automatically resets the communication channel in case of interruption or change the IP address.
Our Viber Gateway sends your SIP server SIP standard codes.
1. Enter the number Viber
2. Call one of the test numbers.
3. Enter the access code.
In the working embodiment the access codes, of course, will not.