We are running into a situation where external calling name is not displayed on our phones. The trunk type is ISDN NI-2.
Caller X's external landline number is 519-555-1234 with name display âCALLER Xâ.
Caller X called me through the CCM, my IP phone displays ' Unknown, 519-555-1234' instead of 'Caller X, 519-555-1234'.
However we have another CCM with DMS-100 and the external calling name is showing on the IP phone.
Does anyone have any idea? Would this relate to the IE used betweent he NI-2 and DMS100 types?
Thank you for any insight you may have.