Allow outgoing number list

Wait a minute. I currently have a Debian 3CX SBC and only the landlines go through the SBC. The PC and Mac applications and smartphones register directly on the 3CX switchboard.
I think you've got confused somewhere - 3CX's SBC is not the same SBC that was suggested to use by Patrickb.

Patrick is suggesting you use a 3rd party SBC offering to register as a trunk in your 3CX to route your traffic through. The 3rd party SBC will firewall where you can call to whilst all other 3CX services remain unaffected.
 
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I think you've got confused somewhere - 3CX's SBC is not the same SBC that was suggested to use by Patrickb.

Patrick is suggesting you use a 3rd party SBC offering to register as a trunk in your 3CX to route your traffic through. The 3rd party SBC will firewall where you can call to whilst all other 3CX services remain unaffected.
Ok, sorry, I understand how it works. However, if I have a 3CX in the cloud, the call from these extensions arrives at the cloud switchboard, whether via the 3CX sbc application, etc. I have to route it to this device via an outbound rule, but the device is physically located at a location. If it blocks it, it stops there, it's clear to me, but is it allowed as a return to 3CX to go out with a second trunk?
 
Wait a minute. I currently have a Debian 3CX SBC and only the landlines go through the SBC. The PC and Mac applications and smartphones register directly on the 3CX switchboard.
Oh man... We are Not talking about the 3cx SBC....
 

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