I am going to perform the steps below during business hours. To anyone that have done this before, Will the other phone will be rebooted or affecting other phones in the same model or within the system?
I am planing to upgrage the firmware for just my phone - 7965 (one phone).
Run the upgrade patch file of the new IP phone load in Cisco Unified CallManager. You can do this by burning the patch file to a CD or DVD, or by sharing it via FTP or SFTP.
Go to Cisco Unified OS Administration in the navigation menu at the top right of the web page. Login with the platform administration credentials.
Go to Software Upgrades > Install/Upgrade.
Choose the appropriate options for DVD/CD or network source, and provide details of where it can pull the file to download.
When the install is complete, this automatically changes the Phone Load Name in the device defaults for the particular phone model.
Copy this new load information from the Device Defaults and paste it to the notepad file.
In order to maintain the old load name for other phones in the network, replace the old load information from the notepad repeating the procedure, Device > Device Settings > Device Defaults. Then, click Update.
This helps all other phones to maintain the old device default load information.
Go to the Device menu >Phone and choose the IP phone on which you want to perform the upgrade. Paste the new load information to the Phone Load Name field and click Update.
Note: CallManager 4.x also follows this same step for changing the load name.
- Finally you have to restart TFTP service. Go to Cisco Unified Serviceability, then go to Tools > Control Center-Feature Services and restart the TFTP service.