In a standard Impact system the entire universe of numbers is 10-41 in a standard E-80PT. You could dial 0 or 10 from the unknown extension and read the display, or just start dialing each unknown or sequentioal number until it rings. Carl
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In a standard Impact system the entire universe of numbers is 10-41 in a standard E-80PT. You could dial 0 or 10 from the unknown extension and read the display, or just start dialing each unknown or sequentioal number until it rings.
Carl