Remote Workers Can't Make Outgoing Calls

[rtsoi]

When making an external call via a SIP phone/Workplace App the call gets blocked (stutter tone like COR restriction).

Incoming works, extn to extn works, outgoing calls from digital/analog works.

All use the same PRI trunk for incoming and outgoing.

Any idea what could be the cause?

 

[avayaguy23]

What does traceSBC, traceSM, and list trace say?