• Requirements
• Version and Description
• New and Changed Support or Functionality
• Related Documentation
• Installation Information
• Reverting to the Unity Connection Version on the Inactive Partition
• Caveat Information
• Obtaining Documentation and Submitting a Service Request
• Cisco Product Security Overview

• System Requirements
• Compatibility Information
• Determining the Software Version

Cisco Unity Connection 15SU2 is a cumulative update that incorporates all of the fixes and changes to Cisco Unity Connection version 15 — including the operating system and components shared by Cisco Unity Connection and Cisco Unified CM. It also incorporates additional changes that are specific to this service update.

To determine the full version number of the Cisco Unified Communications Operating System that is currently installed on the active partition, run the CLI show version active command.

Full version numbers include the build number (for example, 15.0.1.12900-43), the software versions listed on the download pages on Cisco.com are abbreviated version numbers (for example, 15SU2).

Do not refer to version numbers in any of the administration user interfaces because those versions apply to the interfaces themselves, not to the version installed on the active partition.

This section contains all new and changed support or functionality for release 15SU2 and later.

Note	The new locales for Unity Connection 15SU2 have been released and available on Download Software site at https://software.cisco.com/download/home/282421576/type.

Cisco Unity Connection supports the Speechview functionality with a third party transcription service, which converts the voice message to text and the transcribed text is sent to the user along with the voice message. With Release 15SU2 and later, Unity Connection uses the Cisco Webex in-house transcription service for transcription of voice messages.

Note

Thirdparty transcription service will be EOL by Decemeber 30,2024. Hence customers are advised to upgrade to 15SU2 or later releases. For more information see Field Notice: FN74144 - Cisco Unity Connection SpeechView Transcription Service Will Stop Working after December 30, 2024 - Software Upgrade Recommended - Cisco

For more information, see chapter "SpeechView Cisco Webex in-house Transcription Service" of the System Administration Guide guide available at https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/15/administration/guide/b_15cucsag.html

Cisco Unity Connection uses Transport Layer Security(TLS) protocol for signaling and client server communication. With Release of Cisco Unity Connection 15SU2, TLS version 1.3 is supported. TLS 1.3 version is faster and more secure than older version of TLS. One of the key improvements in TLS 1.3 is the reduction in handshake latency. It significantly enhances the performance of time-sensitive applications. Moreover, TS 1.3 also reduces round-trip times (RTT), by further optimizing the connection establishment process. TLS 1.3 has dropped support for older and less secure cryptographic algorithms.

Note	TLS 1.3 is not supported for below Interfaces: Cisco Unity Tools Cisco Smart Software Licensing (CSSM) Voice Mail for Outlook (VMO) Chrome Extension for Gmail Microsoft Exchange Server Microsoft Office 365 Microsoft Outlook

For more information about the TLS 1.3 support, see the "TLS 1.3 (Applicable to Release 15 SU2 or later)" section in IP Communications Required by Cisco Unity Connection chapter of the Security Guide for Cisco Unity Connection Release 15 present at https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/15/security/b_15cucsecx.html

For instructions on downloading the service update, see the "Downloading Cisco Unity Connection Release 15SU2 Software" section.

For instructions on installing the service update on Cisco Unity Connection, see the “Upgrading Cisco Unity Connection” chapter of the Install, Upgrade, and Maintenance Guide for Cisco Unity Connection Release 15 at https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/15/install_upgrade/guide/b_15cuciumg/b_15cuciumg_chapter_010.html.

Note

If you are performing an upgrade from a FIPS enabled Cisco Unity Connection release to Cisco Unity Connection 15SU2, make sure to follow the steps for regenerating certificates before using any pre-existing telephony integrations. To learn how to regenerate certificates, see the Regenerating Certificates for FIPS section of the "FIPS Compliance in Cisco Unity Connection" chapter of the Security Guide for Cisco Unity Connection Release 15SU2 at https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/15/security/guide/b_15cucsecx.html In FIPS mode, it is mandatory to upgrade all nodes in the Networking to Release 15 SU2 or later to ensure smooth operation and avoid replication issues.

See the “Rollback of Unity Connection” section of the “Upgrading Cisco Unity Connection” chapter of the Install, Upgrade, and Maintenance Guide for Cisco Unity Connection Release 15SU2 at https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/15/install_upgrade/guide/b_15cuciumg.html.

If a Unity Connection cluster is configured, revert to the previous version on the publisher server first, then on the subscriber server.

You can find the latest caveat information for Unity Connection version 15SU2 by using Bug Toolkit, an Online tool available for customers to query defects according to their own needs.

Bug Toolkit is available at https://bst.cloudapps.cisco.com/bugsearch/. Fill in your query parameters by using the custom settings in the Advanced Settings option.

Note	To access Bug Toolkit, you must be logged on to Cisco.com as a registered user.

This section contains the following caveat information:

• Open Caveats—Unity Connection Release 15SU2
• Resolved Caveats—Unity Connection Release 15SU2

• Related Caveats—Cisco Unified Communications Manager 15SU2 Components that are Used by Unity Connection 15SU2

For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:

http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html

Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS Version 2.0.

This product contains cryptographic features and is subject to United States and local country laws governing import, export, transfer and use. Delivery of Cisco cryptographic products does not imply third-party authority to import, export, distribute or use encryption. Importers, exporters, distributors and users are responsible for compliance with U.S. and local country laws. By using this product you agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local laws, return this product immediately.

Further information regarding U.S. export regulations may be found at

https://research.ucdavis.edu/wp-content/uploads/Export-Control-Overview-of-Regulations.pdf