at the moment i am seeing some Problems with my CallerID in RingGroup with external Numbers, my Provider is saying that too. I hope i can describe that problem.
Here are some Informations:
But when i get a call from exaple 004911115 to my Ring Group with an MobileNumber, my PBX is doing an external call to my MobilePhone to answer that call. But a SIP Trace says than:
You will have to ask your provider how they allow you to spoof a caller ID. Because, technically, that is what you are doing. It is not your phone number that you are sending on the outbound call.
This is typically trunk configuration.
With a pjsip trunk, the first thing to set it the PAI options in the advanced tab.
I have never heard of provider supporting spoofed CID using the From header in this way. I don’t think there is GUI support to do this, but you could use the dialout-trunk predial hook macro to adjust CALLERID name and number for forwarded calls. Hooking for fun and income