How can I create a user group in outbound rules and grant permission to certain individuals?

Hello, I am using FreePBX version 10.13.66-18. How can I create a user group in outbound rules to allow certain individuals to make calls? For example, I have a SIP trunk that allows both local and mobile number calls, but I want only specific people to be able to make calls to mobile numbers. There is a route password, but the password is the same for everyone.

You probably want to take a look at the Class of Service module.

Does Class of Service provide this service? Have you tried it before?

Yes, it lets you specify which outbound routs an extension is allowed to use/access. We have it implemented at a few deployments.

Thank you for writing, I will try it out.