Sometimes a phone will ring and when we pickup the receiver, the phone stays on-hook and keeps ringing. I am running ICS7750 1.1(1) w/ CM3.0(8), IP7960 phones, fully switched network with 3524-PWR-XL switched and gigabit uplinks between each switch. There are no voice quality issues on the network. VOIP network uses 10.2.x.x (mask 255.0.0.0) and data network uses 10.0.x.x (mask 255.0.0). Any ideas?
I know that late last year, the spring assembly under the hook button was redesigned somewhat due to some force issues. So if you have had the phones a long time then you may have the old assembly. However, I think most of the problem reports related to this were that the phone was not always going on hook in the completely inclined position or wall mounted.
Another thing that will probably improve your situation is to invert the tab that sits directly below the hook button.
We sometimes have the same trouble and it almost always turns out the the phone has the wall-mount tab turned up (the one that keeps the handset from falling off when the phone is mounted to the wall). What seems to happen is that the user puts the phone down on the cradle, but it misses the hook button. So when a new call comes in the user picks up the handset and since it wasn't sitting on the hook button, it doesn't answer the call unless you hit the hook button or the Answer softkey.
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.