Upgrade the firmware manually and locally, using TFTP or HTTP
- Download the desired firmware files from Cisco CCO (the following example uses firmware version 11.2.3MSR1-1)
- Extract the zip file and save it to the TFTP or HTTP root folder (In this case the example shows the root folder of a Windows with an HTTP server enabled)
- Login to http://IP_ADDRESS_PHONE/admin/advanced
- Navigate to Voice --> Provisioning
- Scroll down to Firmware Upgrade and populate the Upgrade Rule with the location of the loads file, using the IP address of the TFTP/HTTP server in place of the one in the example (in this example http://10.10.30.104:8080/Cisco/cmterm-88xx.11-2-3MSR1-1_REL/sip88xx.11-2-3MSR1-1.loads is used)
- Click on Submit All Changes. The phone should now download all the upgrade files and reboot. The time is dependent on the speed of the network connection/how fast the server can serve the files etc.
- Verify if the upgrade was successful
Upgrade the firmware using a Provisioning Server
If your upgrade files are hosted on a provisioning server, you can push the upgrade rule from the server, pointing the phone to the appropriate upgrade URL.
An example of the parameter to set on your template file:
<Upgrade_Rule ua="na">http://DMS_ADDRESS/dms/spa7811-3PCC/sip88xx.11-2-3MSR1-1.loads</Upgrade_Rule>