12-02-2011 07:41 AM - edited 03-16-2019 08:21 AM
I have a 7961 that when you lift the handset it does not pick up the calls but works fine on speaker. Anyone think this might be something other than the hardware failing?
12-02-2011 07:43 AM
Hi,
Sounds like the handset switch-hook is KAPUT
Regards
Alex
12-02-2011 07:45 AM
Hi there,
This is almost certainly a hardware problem with the Hookswitch. After deploying Cisco IP Phones for the last few years we (and many others) have found this to be the most common hardware problem. There is a "Best Practice" for cleaning the Hookswitch contacts (link below) that does work . Usually the phone has to be replaced/RMA'd.
If you don't have smartnet on the phone and you want to buy the parts to fix this let me know and I'll send a link
BestPractices for Cleaning and Troubleshooting Cisco IP Phone Hookswitch
From this interesting Tech note;
http://www.cisco.com/en/US/products/hw/phones/ps379/products_tech_note09186a00801c0810.shtml
Cheers!
Rob
12-02-2011 07:48 AM
WOW Rob, (+5 )
The hookswitch contacts design uses a wipe action to self-clean the contacts. Periods of nonuse of the phone allow air impurities such as dust and other contaminants to hinder contact performance, which results in intermittent operation. Press and release the hookswitch rapidly a dozen times or so to clean the contacts.
This is what Ive been doing for years.
I did not know about the document
Regards
Alex
12-07-2012 06:56 AM
Rob can you send the part list please when you have time. OUr phones are:
7941, 7942, 7961, 7962, 7911, 6921
thanks
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