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Home > Archive > Voice over IP Cisco > January 2007 > 7940 Sticking?
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| Rubottom, Karl 2007-01-30, 7:12 pm |
| We have had an unusual amount of 7940's die in the past few months with
the physical handset on hook button no properly lifting and answering
the call. Are we the first to have this happen, or is this a known
problem?
| |
| Marcin Nowacki 2007-01-31, 7:11 am |
| It's very known problem in 7960's , after few years of use , I hope
Cisco knows that and it won't be such a problem in 41/61/71's in future
use. You may try to repair that by opening the chassis :-) and do few
simple manual things. Sometimes it helps.
As far as I remember cisco says that you should press off hook key 12
times , one by one :-) - maybe sometimes it will help , for me it did't
help at all , even once.
Best regards
Marcin
________________________________
From: cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Rubottom, Karl
Sent: Wednesday, January 31, 2007 1:39 AM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] 7940 Sticking?
We have had an unusual amount of 7940's die in the past few months with
the physical handset on hook button no properly lifting and answering
the call. Are we the first to have this happen, or is this a known
problem?
| |
| Poper, Cathy 2007-01-31, 1:11 pm |
| Hi Karl - Yes, we have had several 7940's (and a few 7960's) have the
same problem - where the hookswitch fails. In most cases, the phones
had been deployed to public recreational facilities where there are
indoor pools. I've heard that chlorine can buildup on the hook-switch
mechanism. We have had others in office buildings experience the same
problem to a lesser degree.
There is a paper which I'll forward to you on how to deal with
hook-switch problems:
Cathy Poper
City of Hamilton/IT Services
Network Support Analyst
55 York Blvd., 6th floor
Hamilton, Ontario
Canada
L8L 3K7
Tel: 905-546-2424 x5481
Fax: 905-546-2333
cpoper@hamilton.ca
-----Original Message-----
From: cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Rubottom, Karl
Sent: Tuesday, January 30, 2007 7:39 PM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] 7940 Sticking?
We have had an unusual amount of 7940's die in the past few
months with the physical handset on hook button no properly lifting and
answering the call. Are we the first to have this happen, or is this a
known problem?
| |
| Craig M Staffin 2007-01-31, 1:11 pm |
| it is actually worse in the 41/61 line
we have RMA'd atleast 50 out of an order of 700 that had this problem out
of the box
Craig
"Marcin Nowacki" <Marcin_Nowacki@sevenet.pl>
Sent by: cisco-voip-bounces@puck.nether.net
01/31/2007 03:42 AM
To
"Rubottom, Karl" <karlr@sheridan.edu>, <cisco-voip@puck.nether.net>
cc
Subject
Re: [cisco-voip] 7940 Sticking?
It?s very known problem in 7960?s , after few years of use , I hope cisco
knows that and it won?t be such a problem in 41/61/71?s in future use. You
may try to repair that by opening the chassis J and do few simple manual
things. Sometimes it helps.
As far as I remember cisco says that you should press off hook key 12
times , one by one J - maybe sometimes it will help , for me it did?t help
at all , even once.
Best regards
Marcin
From: cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Rubottom, Karl
Sent: Wednesday, January 31, 2007 1:39 AM
To: cisco-voip@puck.nether.net
Subject: [cisco-voip] 7940 Sticking?
We have had an unusual amount of 7940?s die in the past few months with
the physical handset on hook button no properly lifting and answering the
call. Are we the first to have this happen, or is this a known problem?
________________________________________
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cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
| |
| Mike Armstrong 2007-01-31, 1:11 pm |
| It's an old problem; we have RMAed about 10% of our 7940s and 60s over the
last few years. The switch is supposed to be a self-cleaning design but
it's apparently not doing it very well.
Mike Armstrong
UF/IFAS CREC
Lake Alfred, FL
> Date: Tue, 30 Jan 2007 17:39:12 -0700
> From: "Rubottom, Karl" <karlr@SHERIDAN.EDU>
> Subject: [cisco-voip] 7940 Sticking?
> To: <cisco-voip@puck.nether.net>
> Message-ID:
> < 29365246B78D08469DE4B49D32BCB10E041D8285
@scmail2.SHERIDAN.EDU>
> Content-Type: text/plain; charset="us-ascii"
>
> We have had an unusual amount of 7940's die in the past few months with
> the physical handset on hook button no properly lifting and answering
> the call. Are we the first to have this happen, or is this a known
> problem?
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