How to disable the service "replace hooter"

The service "Replace hooter" allows subscribers of a cellular network "Megaphone" instead of beep in anticipation of a connection to put a melody to your liking: classic, jazz, pop, electronica and others. But at some point the use of this service for one reason or another becomes unacceptable. Then you can disable the setting one of the following ways.

How to disable the service "replace hooter"
How to disable the megaphone to replace the horn
How to remove melody instead of a horn Megaphone
How to disable "Beep" from the phone

Instruction

Dial 0770 and press the call button in the network coverage area. Next, execute the instructions of the Manager. The call is free.

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.

Is the advice useful?