i have customer who has CME 4.0 with T1/PRI connection they need different Caller Name and Number for internal calls and external calls.
if Phone A (6001) calls to Phone B (6002) ID shows on Phone B as "Name = Phone A, Number = 4085551234" but if Phone A calls outsite phone id Shows on external phone as "Name = ABC Company, Number = 4081234567"
You can achieve this for calling number but not for calling name. If you want just one calling name for all calls for PSTN, you can request your telco to do this for you.
For can achieve this using translation rules for both internal and external calls for calling number only.
For help on translation rules check -