While Cisco’s official release notes (now archived) for cmterm-7975-sip.9-4-2sr4 are best accessed via a CCO account, declassified summaries highlight important improvements over prior SR versions.
(usually packaged as a COP file for Cisco Unified Communications Manager) Key Characteristics & Context End of Life Focus: cmterm-7975-sip.9-4-2sr4
Let’s break down exactly what this piece of software represents. While Cisco’s official release notes (now archived) for
To deploy this firmware to Cisco Unified Communications Manager: Download the cmterm-7975-sip.9-4-2sr4.cop.sgn file from the Cisco Software Center Upload the COP file to the CUCM server using OS Administration > Software Upgrades Restart the Cisco TFTP service on all nodes. This firmware predates modern real-time communication trends
This firmware predates modern real-time communication trends. It cannot register to WebRTC-based PBXs or proxy through WebSocket gateways.
If you need a description or summary text for documentation or release notes, here’s a suggested write-up: