: The latest stable versions for the 7965G are generally in the range (e.g., 9.4(2)SR2). Choose File Format COP.SGN files : Used for direct installation on CUCM servers. ZIP/TAR files

Official firmware should be sourced from the Cisco Software Download page. You typically need a valid Cisco Connection Online (CCO) account and an active service contract to access these files. :

Before you start the firmware upgrade process, make sure you have the following: