Callback number lists contain up to 16 numbers. These numbers replace the actual number of the calling party when the call is sent to the Emergency Services Operator (PSAP). If the PSAP operator calls back (to the callback number) the call is routed using a Transformation Table entry back to the original calling extension.
To create or modify Callback Number List:
Click the Create Callback Numbers List ( ) icon at the top of the Callback Numbers Table page.
A list of numbers which are substituted in a Transformation for the actual number from which the call was initiated. These numbers are used in a round-robin scheme.
Use this field to specify the Public Safety Answering Point (PSAP) number. This is the number to which the call is connected when an extension calls 911. If no value is specified in this field, the call is connected to the local 911 facility.