Caller ID not Forwarding

[inovermyhead]

We have a ticketing system that we would like certain calls to be routed to. There is no integration between 3CX and the Ticketing system so we were thinking of transferring those calls to an extension that sends them to an external number. However, despite setting (See pictures) From: DisplayName, Remote Party ID - Calling Party : Display Name, and P-Asserted Identity : Display Name to "OriginatorCallerID" the only number that shows up in the ticketing system is the number a user calls to get to our 3CX system, not the users number.
Our SIP trunk is through Astound is it possible that they have a setting that is preventing this from working?

 

[KyriacosS_3CX]

Hi,

How are you connecting to your ticketing system?

 

[inovermyhead]

Hi,

How are you connecting to your ticketing system?

There is no direct connection. We have the extension in 3cx set to forward calls from that extension to the external number for the ticketing system. Number not shown for privacy reasons.

 

[SweetAction]

Does your trunk provider allow you to send any caller ID or do they force you to use only DIDs on your account?

Some places call this "clip no screen"