Restrict calls between extensions multi-tenent pbx

FreePBX Configuration
1

Hi, I have a freepbx 15 for 3 companies. I need to restrict the calls between the extensions inside the companies.
Company 1 has exten 100 - 130
Company 2 has exten 200 - 130
Company 3 has exten 300 - 130
I need to avoid that exten 110 calls exten 2XX or 3XX.
I set this by Custom Context, but the BLF go down if I rescrict the dialplan.
May I use Class of Service for this ?

Thanks

2

FreePBX is not multi-tenant. While you might be able to restrict certain things from being dialed via Class of Service you’re not going to stop everything and there can be crossover between them all.

3

CoS does not control ext to ext calls. Pretty much everything but.

4

OK, so there is any way to control ext to ext calls by module ? Shoud I write a context manually ?

5

Essentially you are trying to make a unicycle in to a passenger van. Can you? Probably. Should you? Probably not.

If you want to run multiple companies on one server the best way to do it is virtual machines.