Hello all, I appreciate any help you might be able to give.
I have a new FreePBX system running 184.108.40.206.
I am using SIP trunking to sipgate for calls to Europe and German based DIDs. I plan on adding another trunking service for calls to the US and US based DIDs after I can get this first issue resolved.
Sipgate requires P-Preferred-Identity to be able to send out caller-ID other than their fall-back caller-ID.
I would like to be able to setup my system so that each extension sends out it’s own caller-ID header set to P-Preferred-Identity, but I am unsure of how to go about doing this.
Currently, all calls go out as the provider fall-back number.
I did packet captures of my calls and checked the headers but the only change I see to be able to make in the “From” part of the header is when I remove the extension caller-id, it changes to “Unknown”
Thank you in advance!