Outbound Caller ID

[Praetorium]

Hi Guys

I need some assistance with outbound caller id.

We have a 9 line SIP trunk, and i've setup outbound caller id's for a few extension and configured DID's for those extensions with the same numbers as the Outbound CID.

All was working fine until a couple of months ago when my outbound CID's suddenly reverted to my SIP main number as if the Outbound CID never existed.

I've tried everything i know of try and fix the Outbound Caller ID's, but nothing seems to work.

Any help would be appreciated.

 

[Alex Nicol]

On our SIP provider, we have to specify that we want to have CLI Flexibility enabled and there's an additional form to fill out and sign. If this is not enabled, whatever changes we make on the 3CX system are overridden by the SIP trunk at their end. I wonder if you're experiencing something similar.

Yrs

Alex

 

[Praetorium]

Hi Alex

Thx so much, i'll definitely check this out. I just find it strange that it worked fine and then all of sudden it didnt anymore.

 

[leejor]

Perhaps they changed the required format of the caller ID sent, and yours no longer met that requirement.

 

[VoIPTools]

I think we all agree your next step is to talk with your carrier. It seems likely they made a change on their end. They can perform a wire capture and see what your are sending and whether they or you need to make changes.