Additional Points Re: CAS Operator

In most dial plans, 768 is an invalid extension. When an invalid extension is used as the CAS Operator extension, external calls are transferred to the first communications system operator console. This avoids conflicts between MERLIN Messaging and any existing transfer protocols specific to valid extensions.

If you want the calls that MERLIN Messaging transfers to the CAS Operator to receive coverage, you must use the CAS Operator’s actual extension number instead of an invalid extension number.