sundance-communications.com/forum Forums TDM Business Telephone Systems Nortel Telephones & Systems MICS Line Problem

I have a cst. w/ a MICS 5.0, 1 line card, At times all the lines lite up and no one is on phone, this started a few wks ago and is happening more often now, the lines will stay lit for 30-45 mins at a time, when i was there, lines 2&4 were lit and no one was on phone, when i hit lines it just said in use, didnt say by who, Recpt. says she has hit lines when they are all lit and nothing, not even in use. I did not have a line card to swap out.
Has anyone had this problem and know what it is? is it a line card or MB?
Thank You in advance for any help

By chance is there a VM attached that could be tying up the line(s)?

Dave

there is a flash 2 so it wouldnt tie up all 4 lines, also pressing lit line would show v/m port is using line

Disconnect supervision [lines]is set for?

yes, system has been working fine for yrs, this just started and i know no one has been in programming as i am the only one who knows it

Also, all 4 lines lite up at once

monitor the lines with a butt set on the frame and see what you hear

who are lines from?Are they pots?,channel bank?Has customer switched vender?Ls/Ds cards are cheap.

POTS - ls/ds cards, just never had one do this

I reset system the other day, hasnt happened since ( when i say reset, mean just powered down for a min) very odd, any comments? cpu over run? something odd like that?