Where is phone supervision time set and what can it be set to?
It is either on or off. It is enabled in "phone monitor". Yes (Enables) No (Disables).
* The D7024 sniffs each line every 12 seconds. When a trouble still exists after three samples, 36 seconds, the D7024 sends a Trouble Report and activates the Trouble LED and system trouble relay.
Part numbers FPD-7024, D7024, DS9400, DS9400I, DS9400M,