download update cisco ip phone firmware with tftp

We can do this in one step, because our archive is in a TAR format, otherwise we would have to copy all files from the archive one by one. Now we are going to upload the TAR package to the flash of the router using TFTP protocol. Run the TFTPD32 server and make sure the base directory contains the TAR archive, so TFTPD32 can serve it. TFTPD32 is a tiny TFTP server which we are going to use to upload our firmware files to CME. You can do this using 7-Zip archiving software. Now you need to extract the contents of this ZIP archive and add all extracted files to another type of archive – TAR. zip package as shown on the picture below. Go to Cisco Software Download and download the firmware files for your IP phone model (in my case it is 8851). The first thing we need to do is download the new firmware files from Cisco website. I will be upgrading Cisco 8851 IP phone(from version 12-0-1-11 to 12-5-1SR3-74) using Cisco ISR4331/K9 router as a CME. This article show step by step how to upgrade the firmware of a Cisco IP phone managed by CME(Call Manager Express).

Download update cisco ip phone firmware with tftp