TN goes busy

[jj2473]

Hello Everyone,
I am hoping you can help me with a strange problem we have occasionally, 1x or 2x a month. Certain TN's goe busy that have analog phone sets attached. Basically nothing seems to unbusy the port short of deleting and recreating, any idea's?

Thanks,
JJ2473

 

[jj2473]

At times even when we recreate the phone on a different tn, port etc the same thing happens.

 

[PERRYPJ]

TIME TO CHECK YOUR STATION WIRING AND STATION EQUIPMENT

OLD ROLMEN WORKING ON NORTELS

 

[Muddyheel]

Is it the same card or all analog cards? Which switch are you using?

If it is the same TN on the 81, try to back the card out and install it again and see if the problem follows. If it does then replace the analog card.

 

[bigindian65]

As PERRYPJ says, open somewhere, ought to be able to put a Butt set on the frame and go on & off hook to get it out of timeout from the off-hook condition, at least to save you from re-programming until you resolve.

 

[jj2473]

It seems to follow the DN, No matter what if I get it so that it is idle then reconnect it goes back to busy. The phone was working earlier...

Everything looks like it should.

 

[jj2473]

Using Option 61c with analog phones, When the line is busy and I clip on the set to listen it sound as if the line is open( within the end location/room). Yet cannot find anything wrong. If I clip on within the switchroom I get silence on the line.

 

[acewarlock]

are you using the same wall jack? The cable could be bad.

 

[comtechau]

G'day JJ2473,
I've also experienced this fault (on Opt81) but was never clear why.
Here's the story...
Various TN's (4 or 5 in all) would go busy and would not re-enable by any method.
Each time the only 'fix' was to recreate it as a new TN, then OUT the faulty one.
Our cabling always tested ok with Fluke Cat6 testers.
We tried reterminating cabling, outlets, line cords, patch cables, replacing phones, replaced FALC's..
Yet it persisted.

After several months, it just stopped occuring.

Two things had occurred meantime that may have had something to do with that...

(1) Our affected DN's had all been relocated due to inter-departmental musical chairs.

But - new users at the original location were not experiencing problems.

(2) Another intermittent fault was fixed.
We had some users intermittently experiencing loud buzzing noises and/or 1 way speech.
Affected TN's were always part of Group 4, shelfs 0 & 1.

We tried replacing IGS cards, cables, and even the IGS interconnect backplane.
Someone eventually realised that we had an IGS cable that was simply a 'tad' short.
It was taking a shortcut diagonally across the back of a shelf power supply. The P/Sup cover plate was on, yet we still had induced noise into the IGS cable. Who'da thunk it.

It was Replaced with a longer cable, properly positioned -- Noise Fault cleared.

We never did definitively work out why our BUSY but won't ENBL fault just went away. However, the affected DN's for that problem were also ALL from Group 4. So, perhaps the problems were related somehow.


Have you tried this ?
Trace the DN in LD80 when it BUSY's out...
That might turn up something useful.

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