Do you suspect that they are loosing connection with the callmanager? Do you think that they loose power all together, or just reset? Do they all reset at the same time, or sporatically? Are the ones that reset common to a switch in particular (POE switch)? Is it only a particular subnet of phones? Is it one type of phone (7941s only), or all phones and types? Does it happen during a particular time of day, or anytime? Etc., etc.
Just some thought provoking questions, to help narrow down what is actually going on.
as john mentioned, there are many things to consider with this. im responding because im having phones at one of my branches resetting once everyday for the past month. im still troubleshooting, however, its not actually an issue with phones per say. i have narrowed this down to my input queue being overwhelemed and that drops all data for one second. Still in the process of finding out what is causing it
have you taken a look to see if any errors exist on the swtiches/routers, whats the staus messages on the phones, do you have any thing monitoring the network?
whats the background on the issue. were these phones working for a while and it just happened or is it happening since install? Are all phones affected,was an upgrade done, is there any slowness on the network etc etc....
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.