Unknown Calls - Cortelco Colleague Owner's Instruction Manual

UNKNOWN CALLER
•
When the telephone company is unable to provide information of the caller's
telephone number, [UNKNOWN NUMBER] and his name will alternately
display on the screen when this information is received.
•
When the telephone company is unable to provide information of the caller's
name, [UNKNOWN NAME] and his telephone number will be displayed on the
screen.
•
When the telephone company is unable to provide information of the caller's
name and number, [UNKNOWN CALLER] will be displayed on the screen.
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