Bandwidth sends the attestation in the PAI header in this form: "<sip:+1XXXXXXXXX;verstat=[email protected]:5060>" so even if you instruct the PBX to read the caller ID from the PAI header the info is will not be conveniently displayed for the users to see.
Its up to you though.
@YiannisH_3CX I suspected as much. I'm going to have to get with Bandwith and see if they have an capability to modify the header to make it more easily displayed. Otherwise, I have to do header manipulation on the end SBC that fronts the phone system.