Unified CME, Unified SRST, and Cisco IOS Software Version Compatibility Matrix
Revised: March 30, 2018
Cisco Unified Communications Manager Express (Unified CME), formerly known as Cisco Unified CallManager Express.
Cisco Unified Survivable Remote Site Telephony (Unified SRST).
See the Unified CME documentation list.
See the Unified SRST documentation list.
To find the right Cisco IOS and CatOS software release for the features you want to run on your network, go to Feature Navigator.
To download Unified CME or Unified SRST software and phone firmware files, go to Technical Support Software Download.
To find the latest CME/SRST caveat information, go to Bug Toolkit and search, by product, for Cisco Unified Communications Manager Express or Cisco Unified Survivable Remote Site Telephony.
1. Cisco posts to the Software Center regular IOS Image rebuilds that contain DDTS fixes only. It is recommended that the latest (highest number) Cisco IOS Software rebuild be used when choosing a new version. For details regarding Cisco IOS software releases, go to http://www.cisco.com/en/US/partner/products/sw/iosswrel/ios_abcs_ios_networking_the_enterprise_listing.html.
2. The version numbers for Unified CME 3.3 or later GUI files can be found in either “Help About” within Internet Explorer or in the CME_gui_readme.txt file downloaded with the Cisco IOS release.
3. Specifications provide details about supported platforms and IP phone firmware version information.
4. Only the features Idle URL and New Phone Support (8821/8845/8865) for Unified CME Release 12.0 are supported on the 15.7(3)M version of T-train.
For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation.
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