Question about Cisco 7941G IP Phone
When i plug the phone into my switch it says it is upgrading but nothing happens and then i get a small bullseye on the bottom left of the cisco screen
Your phone is trying to connect to a TFTP server address to download a firmware and/or config file update. You need to figure out what IP address it is trying to connect to (You may have to use wireshark or another packet sniffer to determine this).
Once you know the IP it is trying to connect to, you'll need to set up a small network with a TFTP server running on that same address, and feed the phone a firmware update and/or config file. It will likely not fully boot unless it gets a firmware update.
Cisco Phone 48V Power Supply
Posted on Dec 06, 2012
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Posted on Jan 02, 2017
the first problem will be to check or replace the cable that you use to connect the phone or check the jack that you use
Posted on Jul 12, 2007
You need to ensure that each port that has a phone plugged into it is configured with power over ethernet configured switched on.
Posted on Mar 21, 2008
SOURCE: Cisco 7911G definitely dead?
You are very close to fixing your problem. You will need the correct firmware and files; these are proprietary but you should be able to acquire them from your certified reseller. Alternatively, here at IdacomUSA, we have the proper firmware on hand, and can flash the phone for you to get it back to life. Call us at 1-800-903-9190 or visit us at http://idacomusa.com
Posted on Feb 11, 2010
These phones can take their power from a Power over Ethernet switch, where all you need to do is plug the phone in to the switch and it gets its power from there.
You can also get power cubes for these phones, but they do not come with the phone as standard, as most people like the convenience of having the power coming from the switch, and not needing to use up a further power socket in the floor/wall.
Hope that this helps!
Posted on Nov 08, 2010
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