Would such an Asterisk setup be correct?

Question

Asterisk

There is not much experience in Asterisk, so I ask you to help me figure it out.
I connected a Multiphone to my megaphone number and added a trunk to Asterisk. Trunk registered successfully. I did everything as indicated in the manual from Megafon and in other manuals.
In extension.conf, I wrote a dial plan so that the caller would hear a musical greeting.
Tell me, will the subscriber hear this musical greeting when he calls the megaphone number that I indicated when registering the trunk?
Or how does it happen?
If possible, tell me what needs to be done from start to finish so that when calling my megaphone number, a person can hear the musical greeting specified in the dial plan of the Asterisk config.
If wrong, correct. Thank you!

Answer 1

Call and check, it's business.