This document describes the process to follow in order to upgrade the firmware of the DX70, DX80, DX650 endpoints and IP phones 77XX and 88XX series, when they are registered over Mobile and Remote Acces (MRA)
Cisco recomends that you have knowledge in these topics:
MRA configuration and deployment
Cisco Unified Communication Manager CUCM
DX endpoint series
77XX and 88XX IP phone series
Trivial File Transport Protocol (TFTP)
Cisco IP phone 8851 with minimun version 11.0
Cisco Video Communication Server (VCS) or Expressways with minimun version X8.7
Cisco Unified Communication Manager (CUCM) with minumun version 10.5(2) SU2
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, ensure that you understand the potential impact of any command
The 77XX, 88XX IP phone series and the DX endpoints registered over MRA cannot be upgraded from Call Manager via Expressway, you need to use an external TFTP server that is accessible from the IP phone or endpoint.
The tftpd32 can be used for this purpose, it can be downloaded in the next link: TFTPD32
Note: The tftpd32 software is not a Cisco software, it is a third party software suggested for this specific purpose, ensure that you understand the potential impact of the instalation and usage of this software
Step 1. Download the firmware you want to install from cisco.com web page and save it in a known place in your PC.
Step 2. Launch the TFTP server and browse to the folder where the firmware file is contained as shown in the image.
Step 3. On Call Manager navigate to Device > Phone and select the device profile of the IP phone.
Step 4. Type the phone load name. It must be the file name on the tftp server.
Step 5. Navigate to section Product Specific Configuration Layout and configure the Load Server field, it must be he tftp server IP address.
Step 6. Select Save and Apply Config.
Step 7. Reset the device, select Reset and then Reset again.
After a phone restart, it starts to download the firmware, the Tftpd software must show the download status, as the image shows.
Once the download is complete, the IP phone installs the new software and restarts itself one more time.
After the IP phone restart, the new firmware becomes the active load.
There is currently no specific troubleshooting information available for this configuration.