Instruction
1
Dial 0770 and press the call button in the network coverage area. Next, execute the instructions of the Manager. The call is free.
2
Send SMS with any content to the number 0770. Don't send numbers, they can be a source tune that will be installed instead of a dial tone on all incoming calls.
3
Sign up on the page at the link below. In a personal account, configure the use of the service.