Connected 3CXs (Bridge) - Calling thru bridge with different Caller ID

[Kenneth_SDAP]

Hi guys, got a scenario that I am struggling, wanna see whether anyone here did encounter and even solve before.

I got two 3CXs, let's name them as Master and Slave, they are connected by bridge function and for different regions usage.

This is what I want: when I am calling with master extension to the external numbers in slave's region, I would like to have it routed from master to slave (this is tested positively), and when the call is triggered from the slave 3CX to the external number, the caller ID can be shown based on which master extension I am using to call.
a.k.a.
Master User 1 calls to Slave region external number ==> goes thru Master 3CX and then Slave 3CX ==> calls to external number with caller ID #1
Master User 2 calls to Slave region external number ==> goes thru Master 3CX and then Slave 3CX ==> calls to external number with caller ID #2

I pretty much stuck in the outbound rules in Slave 3CX, as I cannot limit the rules to "Calls from extension(s)" as the extension is from the Master one instead of Slave (itself).

It would be great if anyone can help with this or suggest any solution for this.

p.s. I am new to here and want to thank for the posts that helped me before, you guys are great and willing to share what you know and think for others. Cheers!

 

[leejor]

Getting the desired caller ID across Bridge trunks has been an ongoing issue.

https://www.3cx.com/community/threads/outbound-caller-id-over-a-bridge.62515/

https://www.3cx.com/community/threads/caller-id-from-a-bridge-connection-to-sip-trunk-again.65777/

https://www.3cx.com/community/threads/weird-caller-id-issues.70490/

There may be a suggestion in the Ideas forum. One of the "complications" may be in trying to send a caller ID, to be used in an external call, while also sending one, that is dial-able, when calling another extension, on the other PBX. So the originating PBX would have to send both a public, and a private caller ID, and the other PBX, would have to know which to use.

If the slave PBX had a different trunk group (sub group from same provider?), for calls originating from the Bridge, they may allow you to set a different fixed caller ID, for that trunk, that was more appropriate to the originating extension

 

[cobaltit]

So what is gained by this scenario. Assuming you are using SIP trunks, if the point is just to have cheaper calling, why not just register a 2nd trunk on the master to the provider for the slave?