I have one issues with extension mobility, I upgrade a cluster from 7.1.3 to 8.0.3 but I face license issues so I sweptback to old version which is 7.1.3 every thing working find except extension mobility I am trying to press the services button but no action happened and all the phones are upgraded to a new firmware 9.0.3 I reset the EM feature services also I reset complete cluster the same issues,I download a new firmware for the phones but its not upgrading the existing phone when I plug the new phone its upgrading and the extension mobility working fine and for the existing phone I upgraded as follow, I Disconnect and connect the network and press # for 2 sec and press 123456789*0# the phone will start upgrading but I have more than 300 phone sets.
1. Existing phones are not upgrading or downgrading firmware as desired but a brand new phone upgrades normally.
How did you install the newer/older firmware file on the UCM cluster?
Does the device have a specific firmware load declared on it's configuration? This would override the cluster default firmware load if set.
2. Extension Mobility and other services are not working on existing phones.
Does the new phone you plugged in for the first time after reverting to 7.1 work if you try using Extension Mobility?
On an existing phone if you go to Settings > Security Configuration, do you see a TVS file option? If so, try erasing it after pressing **# to unlock the config on the phone. Once erased the phone will reboot.
For all SCCP firmware upgrades from firmware release versions earlier than 8.3(3) to version 8.5(3) or greater, you must first upgrade your firmware to version 8.5(2). Once you have upgraded to version 8.5(2), you can upgrade your IP Phone to version 8.5(3) or later.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...