I have a cisco 7941 IP phone for reciption and it was working properly. but today its not working. It shows only upgrading message and after that shows error. and then show cisco systems(with logo). So plz help me how can i solve the problem.Its urgent coz it reciptions ph.
Was the an upgrade last night or anything? If there wasn't then I would say your phone went bad. Either that or did someone try and upgrade phone firmwares last night? Either way I would just replace the phone and swap MAC Address's
Are there similar model phones in this office that are working?
I would factory reset the phone to start with, make sure there are no underlying infrastructure problems with the cabling/connection to the switch as well. You could try a new firmware (as per the previous message).
Is there a PC connected to the phone. If so, does that have a network connection? Also, where is the phone stuck on boot up? If it's searching for an IP have you checked the DHCP scopes to make sure there are available addresses?
If this is urgent I would definately swap the phone.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.