ICLID (Incoming Call Line Identification) is only available from Telco. You also need an "external device" attached to the CO Lines to collect the ICLID and transfer the information to the Protégé system.
Outbound Caller ID is not possible and is only available and controlled by Telco.
In programming look under C.O. Line Application/ICLID, that is the only programming available.
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