Problems with T7208 Phones Cutting Out on BCM 50 2

[aconchie]

Hi,

We have had a BCM 50 now for just over a year and we have had quite a few problems with our phones (Nortel T7208 handsets) cutting out. They seem to cut out intermittantly - mid call, where the power appears to be completely cut from the handset and then restored (almost like they are re-booting). We have 7 hansets which all do this about 5 or 6 times per day.

We are loosing business because of this, as we rely on our calls for generating new business and they are all cutting out mid-call.

We have called an engineer out on several occasions and they can never find anything wrong with it as it is intermittant, they can never seem to replicate the problem. They have replaced connectors and cables to try and resolve the issue, but nothing they do seems to reslove this.

I can't believe that a so called professional system can be so temperamental! I just wondered if anyone else has heard of this happening, or knows of what could cause this problem.

Thanks

Adrian

 

[curlycord]

Could be a couple things but I recall there ws an issue with the ribbon cable not connected right from mobo to hard drive.
Try seraching or posting at the BCM forum.

http://www.tek-tips.com/threadminder.cfm?pid=1361

=----(((((((((()----=
curlycord

http://www.curlycord.com

 

[iswsystems]

You could actually have a defective phone causing this. I had a client who has a large MICS, about 50 lines and 200 sets. The whole phone system started rebooting on occasion, sometimes numerous times in one day.

Finally, it was traced to one bad set. Anytime that particular set was picked up and tried to get an outside line, the system would freeze for a few seconds, then shut down and re-boot.

What had happened was that the bad set was accidentally plugged into a RJ45 data network drop and something got damaged in that process. When it was then plugged into the KSU after being damaged, it came up okay with the date and time.

Go to each set and try to make a call using an outgoing line, if it locks up and reboots on a particular set, you've found your problem.

Once we located the issue, we thought at first it might be the port, so we tried a new port on that phone and it still rebooted, thus proving it was the phone itself.

The real root cause is that the jacks (IBDN) type were RJ-45 for both voice and data, and were mislabeled, so the IT guy thought he had plugged it in to the correct jack. When things didn't work, he switched them and then it seemed okay....until the lady at that workstation came back to work and tried to use her phone. Good luck!

 

[exsmogger]

Nice tip. Thanks.

Brian Cox