Trying to figure out if it is possibe to release an extension for use again for auto-assign once a phone is unplugged. I test phones, mainly 79xx series, and it gets old fast having to do no ephone 1 2 3 ... when all of the extensions have been handed out.
I don't think such a functionality is feasible, as this would result is wiping out configuration even in case of following scenarios:
> ethernet cable gone bad
> someone accidentally unplugging the phone
> if the port to which the ip phone is connected is shut administratively or if it goes bad