Restriction of additional dialing from IVR?

Question

Asterisk

Good evening.
I am not a strong connoisseur of asterisk, so I ask for help in this situation.
The situation is as follows. There is an IVR menu from where you can dial an extension number using the extension dial. Are there any methods that will allow you to prohibit the dialing of a specific number?
Tell me where in what config to register it.

Answer 1

In Freepbx, open Config Edit
1. Find the context for your IVR in the extensions_additional.conf file. The first line in it may look something like this: include => ivr-4-custom
2. In the extensions_custom.conf file , create the context [ivr-4-custom] and prohibit calls to the desired number in it, for example, 201:

[ivr-4-custom]
exten => 201,1,Hangup

3. Save changes and reload asterisk