Issue - Can the phone supervision time be changed?
Solution - No changes can be made the supervision time. It is either ON or OFF.
While the communicator is idle, it monitors the primary and alternate telephone lines by “sniffing” the line for trouble. The communicator sniffs each line every 12 sec. When a trouble remains after three samples, 36 sec, it sends a Trouble Report and activates the yellow trouble LED.
To troubleshoot telephone monitor problems:
Part numbers FPD-7024, D7024, DS9400, DS9400I, DS9400M