GDK-186 hotel station "Invalid", possible faulty SLIB24?

[bigdave1980]

Hi everyone,

We've got a hotel customer with an LG GDK-186, and a recent power disturbance caused them some issues. I've been there myself to investigate but I am not an expert on these systems by any means. They reported that their analogue bedroom phones were not working but their admin digital phones were fine. Upon arrival I found that only one bedroom in particular was not working - when I picked up the phone there was just a very loud, high-pitched tone or alarm sound, like a screaming noise. Pressing any keys on the handset interrupted this noise momentarily but it immediately returned, so I was unable to dial anywhere.

There was a light on one of the SLIB24 cards which means the card's in use but as all the hotel rooms are empty this cannot be the case, indeed I traced cabling from the room to this particular SLIB and the noise was present when testing on the Krone strip just adjacent to the LG system.

Resetting the system (hard and soft) made no difference. If I call the station number it comes back "Invalid", however I know that the station still exists within the programming because I can view Station Attributes 1, 2 and 3 for it. In fact, as I now recall, there was another room that I walked into and the phone (which had been left slightly off-hook) was making the same sound, and when I hung up it went back to normal dialtone. Does the LG system have off-hook warning tone/howler tone? Could that be what I was hearing on both phones? If so, could there be some problem on the SLIB card that's preventing me hanging up the phone? Another phone has been tried in the room, I'm told.

What would cause a station to come back as "Invalid" if it still exists in the programming? I don't know if the 2 problems are related (the noise I'm hearing and the fact that I can't call that extension) but I'll assume that they are.

Any help and advise would be much appreciated please as I'm stumped on this one. I think we're going down the route of replacing the SLIB card but I'm not totally convinced that's the answer here.

Thanks,

Dave

 

[Mr.Phones]

Hi Dave

You could either have a faulty SLIB card or slot on the back plain is faulty. Did you say there was a bedroom which was working? If that's the case, locate which SLIB card that working phone connects to, power down, swap the cards over and see if the faults follow. With the cards swapped. The non working working will work and vice versa.

It's been some time working on these systems, you might not need to power down if there's a service dip switch on the front of the cards.

 

[bigdave1980]

Hi Mr.Phones,

Thanks for your reply. There are other bedrooms on that same SLIB card that are still working so I think it's probably that one particular port on the SLIB that has the issue. Hopefully replacing the SLIB will resolve it, if not then it will be quite embarrassing and I'll need to start looking at other possible causes. Indeed there are service switches on the cards so that may save me having to power down when swapping out the card, thanks for that.

Thanks,

Dave

 

[JJ999]

OK, Worked on these systems for some time.
Going by what you said, let us know the outcome as some time ago now.
My procedure would be discon distribution cabling from system, test.
If same condition poss inadvert invalid call fwd set by user - cancel via atndt.

Test, good ? Y - reconn distribution cabling.
N - software reset after backup. Retest.
N- Spare port ?- swop to that - N - change card.

 

[bigdave1980]

Thanks JJ999,

This particular incident was eventually passed over to our Sales department as the customer didn't have a support contract in place with us. I've never heard any more about it since that time unfortunately so my guess is that the customer has either decided to leave it as it is, or they're considering a replacement telephone system. If I do hear any more about it I will update here, if I can.

Dave