01-04-2016 10:36 AM - edited 03-17-2019 05:23 AM
I have a 7975 phone running load SCCP75.9-4-2SR1-1S. The phone has two 7916 expansion modules attached as per the related documentation. Both expansion modules frequently reset/reload for no apparent reason. When this happens it has no impact on the phone itself. Everything that can be replaced has been swapped out, the phone, both expansion modules, the power brick, network jack, cabling, and switchport. I'm at a loss on what to try next.
For the record, following are the versions of everything:
Cisco UC CM: 10.5.2.12901-1
7975 Phone Load: SCCP75.9-4-2SR1-1S
7916 Modules: B016-1-0-4-2
If anyone has any thoughts on how I can resolve this please let me know.
01-04-2016 01:52 PM
Mike,
Please refer this Bug below. Try to downgrade firmware version of 7975.. I tried with this 9-3-1SR4-1S & works.
https://tools.cisco.com/bugsearch/bug/CSCuu49765/?reffering_site=dumpcr
01-05-2016 12:04 PM
Thanks very much for your reply. I will give this a try although it will probably be tomorrow before I can. I will reply with results.
01-10-2019 12:43 PM
Is the phone connect to the wireless headset? If yes, try to disconnect them.
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