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Cucm 15 upgrade guide. It is recommended to fix the entries before upgrade.

3. 97 MB) View with Adobe Reader on a variety of devices Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 12. Upgrade Procedures. 5 SU4 to 12. Once you install the new version of UCM you current inactive version will be replaced with newly installed software until you manually switch to the new release. It’s not supported, but you absolutely can just shut down the machines, change the HD size, and on the first boot the system will adjust the partitions to take advantage of the new space. 29 MB) View with Adobe Reader on a variety of devices Jul 18, 2016 · In addition to above information, you can just hover on the CM version you are planning to upgrade on 10. I'm reading Upgrade and Compatiblity Guide. com for details). 01-11-2022 01:01 PM. The new software is inactive. 1. It is not supported on VMware ESXi 6. Download Site. Familiarize yourself with the requirements and limitations of this release: Requirements and Limitations. 11-01-2023 02:52 PM. See the "Smart Software Licensing" chapter at System Configuration Guide for Cisco Unified Communications Manager. 3)File system checks: It seems to be ok for 11. 下面网址包括了详细的升级,包括各种情况。. Cisco Expressway CE1200 Appliance Installation Guide (X14. Verify the checksum. 5 versions upgrade. 5(1)" which was just updated in July 2020. 5(1)SU3, SU4, SU5, SU6, SU7, SU8, SU9, SU10, and SU11 are compatible with Cisco Prime License Manager Release 11. 2 MB) View with Adobe Reader on a variety of devices Jun 20, 2024 · Table 1. 30-Jun-2015. Caveat: I have not tried the 15 upgrade yet, so it’s possible this will no longer work. Licenses are Smart Entitlements. Aug 22, 2023 · Bias-Free Language. Hello. x servers running in a virtual machine. CUCM升级虽然是升级到11. If you are upgrading Unified Communications Manager registered to Cisco Smart Software Manager Satellite from Pre-15 releases to Release 15 or higher, Cisco Unified Communications Manager will not update the product version to 15 in the Cisco Smart Software Manager UI for the Product Instance. x. I have this problem too. Apr 15, 2024 · Upgrade Cisco Prime Collaboration Deployment Using CLI To upgrade the software version of Cisco Prime Collaboration Deployment, use the utils system upgrade initiate CLI command. Cluster Upgrade 2. 6 (1) Step 5. Manage End Users. Jul 12, 2024 · Installation Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs. Jan 18, 2023 · Upgrade the publisher node to the new software version. x) (PDF - 573 KB) 26/Sep/2018. Jun 19, 2024 · Upgrade the Unified Communications Manager publisher node to an inactive version 2 to 4 hours. html Cisco Unified Communications Manager License Requirements Aug 22, 2023 · Cisco Unified Communications Manager CUCM Installation & Upgrade. For the full onboarding process, see the "Configure Push Notifications for Cisco Jabber on iPhone and iPad" chapter at System Configuration Guide for Cisco Unified Communications Jul 11, 2018 · 介绍:CUCM可以通过PCD工具升级或直接在OS层面升级。. gz” for X14. Step 16. The documentation set for this product strives to use bias-free language. Jun 20, 2024 · For information on how to upgrade to this release, see the Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 15. 5 and your PCD FIPs is disabled by default. ” Bias-Free Language. Use "file view install PreUpgradeReport. 0. Thank you! In order to do that, you have to configure a new virtual machine with the following parameters: Operating system – Red Hat Enterprise Linux 5 (32 bit). migrations using the PCD Migration task. Oct 16, 2023 · End-of-Sale and End-of-Life Announcement for the Cisco Unity Connection Version 9. Destination. 7. In general all upgrades processes need to start on publisher server first and when finished you can upgrade subscriber node. 0(1) upgrade documentation should be good enough More details on configurable security options are in the Security Guide for Cisco Unified Communications Manager. 5 support on VMware ESXi. Jul 10, 2024 · Bias-Free Language. Mar 16, 2021 · The upgrade file is copied to the hard disk of the Unity Connection server. Nov 1, 2023 · CUCM Upgrade from 12. Key steps include: 1. tar. 79 MB) PDF - This Chapter (1. 5(1) Chapter Title. 5 and 8. Documents for Cisco Unified Communications Manager, Release 14 and SUs; Document . Administration Guide for Cisco Unified Communications Manager, Release 15. Upgrade (simple upgrades) 12. If there are any new configuration files for these models, they are listed in the previous table: Cisco Unified Communications Cisco Unity Connection Version 10. Description. Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 14 - Upgrade Dec 18, 2023 · Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15. 1) 27/Sep/2023. 1 that I'd like to upgrade to 12. Start VMTools install: Right Click > Guest > Install/Upgrade Vmware tools. 28 MB) View with Adobe Reader on a variety of devices Mar 29, 2021 · No, you must do it separately and in general before upgrading UC servers. Cisco Expressway CE1200 Appliance Installation Guide (X8. 12-15-2022 06:23 AM. 2. Upgrade the primary subscriber nodes. 5(1) Bias-Free Language The documentation set for this product strives to use bias-free language. UC Manager is the industry leader in enterprise call and session management Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 11. After that, you can not upgrade the server to any pre 15 release (for example: 11. " I am upgrading from 11. 03-20-2024 07:09 AM - edited ‎03-20-2024 07:16 AM. 05-31-2013. 25900-8,新CUCM的版本是11. Go to Unified Communications Manager Downloads—Select your version and then look under Unified Communications Manager Updates for upgrade ISOs. How to Use this Guide. PreUpgradeCheck COP: It verifies that the system is in a good state to start the upgrade. Sep 6, 2021 · Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 11. PDF - Complete Book (7. 5 from version 11. 76 MB) PDF - This Chapter (1. 5 that I'm looking to get to version 15. Jun 10, 2024 · Table 1. Dec 21, 2023 · I'd like to discuss two scenarios and seek suggestions on how we can smoothly upgrade or migrate to CUCM 15, considering that most deployments have an 80GB disk. Jun 11, 2024 · Open Caveats for Cisco Unified Communications Manager Release 15SU1 describes a few of the possible unexpected behaviors still remaining in Cisco Unified Communications Manager Release 15SU1. Supported Upgrade Paths for Cisco Unified Communications Manager and the IM and Presence Service; Source. Apr 24, 2024 · Bias-Free Language. 0,本应该看11. Mar 31, 2022 · Bias-Free Language. 83 MB) PDF - This Chapter (1. 8 MB) PDF - This Chapter (1. Note For adding the UCCX certificate to the CUCM Phone trust store, refer to Finesse IP Phone Agent Certificate Management section in the Cisco Unified Contact Bias-Free Language. 14900-63 to 12. Table 1. Memory – dedicate at least 4GB and keep them during the normal operation if possible. 5 train using the below link and then go through the CUCM Readme that will list all the important documentation for that particular version else as mentioned above 10. 5 and I want to upgrade to 15. PDF - Complete Book (3. Jan 15, 2019 · Step 2. Cisco Emergency Responder 12. 5, and 14. Can I just Upgrade CUCM, CUP, CUC without May 14, 2020 · Also, this is straight from the document "Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 12. The guide says that a PCD upgrade task is the proper way to do this. UCM has a rich feature set that supports calling, mobility, conferencing, and messaging features. 5 (1) Cisco Collaboration on Virtual Servers. admin:file view install PreUpgradeReport. In RTMT I keep getting alerts for low water mark hits and high memory usage so since I have the resources, I'd like to increase my VM reservations for Mar 24, 2021 · End-of-Sale and End-of-Life Announcement for the Version 11. Upgrading from CUCM 12. Additionally, make sure to read the following resources. PDF - Complete Book (2. txt. 8 MB) PDF - This Chapter (0. 0) 27/May/2021. 0(x) 12. x, 12. The document details upgrade from 6. Documents for Cisco Unified Communications Manager, Release 15 and SUs; Document . Check the upgrade guides closely for any recommendations especially when you are running HA scenario for UCCX. FedRAMP Upgrade (simple upgrades) 12. X to 14. CUCM & CUC 12,5 is supported only on VMware ESXi 6. Upgrade the IM and Presence database publisher node in parallel with the Unified Communications Manager subscriber nodes. Refresh upgrades: no access to the UI . The command to begin the upgrade is "utils system upgrade initiate. Mar 5, 2024 · I recommend following the CSR compatibility guide and checking for the recommended versions. 5(x) Chapter Title. Jan 30, 2024 · Refer to the “Switch to Previous Version” section in the Upgrade Procedures chapter at Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 15 for detailed instructions on “Reverting to a Previous Version. Unified CM 10. 3. Preinstallation Tasks. Upgrading each node in the cluster sequentially, starting with the publisher, to minimize Feb 26, 2024 · The Cisco Unified Communications Manager Device Package Release 15. We will upgrading our CUCM from version 12. The install/upgrade guide makes mention of several items I've not seen before: skilp-install OVA. Step 1 Using your web browser, log in to the Cisco Unified Communications Operating System Administration web page. with 110GB virtual hard disk, then direct upgrade to 15. Step 15. Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 11. Console/SSH to device and run: utils os secure permissive. Jan 31, 2017 · Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 10. 11002-1) contains loads for the following device releases. Release 14 of UCM extends the product with new features for remote workers. 6). Step 3. upgrade call manager to 12. There are four options, depending on where you have placed the new ISO /COP file on an external filesystem or on Cisco Prime Collaboration Deployment itself. 5 (1) Cisco Unified Real-Time Monitoring Tool Administration Guide, Release 12. 2. - Use a direct migration option to get to 15 (Refer the Upgrade and. 29 MB) View with Adobe Reader on a variety of devices Dec 15, 2022 · lisacoody. 09 MB) PDF - This Chapter (0. Changing the IP Address and Hostname for Cisco Unified Communications Manager and IM and Presence Service, Release 12. But I’ve done it for 11. End-of-Sale and End-of-Life Announcement for the Cisco PBX/IP Media Gateway (PIMG) and T1 IP Media Gateway (TIMG) 02-Feb-2015. The prompts will ask for an SFTP server or local disk image. Post-Upgrade Tasks (Manual Process) PDF - Complete Book (2. 5, not all older Cisco Endpoints are supported: - Go through the Cisco Collaboration Virtualization site to verify CUCM & CUC 12. Level 1. Enable Push Notifications for this release. 1. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Cluster reboot/switch version I did find this guide but it did not cover how much user input may be needed during the Oct 21, 2016 · Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 11. Upload the upgrade file (For example “s42700x14_0_6. 11. 1 or Newer 14-Dec-2020. CUCM IM&P Pub also needs finished CUCM Pub before upgrading. Jun 26, 2024 · Currently I have a 2 node CUCM 12. 96 MB) View with Adobe Reader on a variety of devices Aug 22, 2023 · Supported Upgrade Paths for Cisco Unified Communications Manager and the IM and Presence Service; Source. 5 (1) to 14. Sep 4, 2023 · Specifically wanting to know how much user input is needed once the process is start. Cisco Expressway CE1300 Appliance Installation Guide (X14. X and would like to know how to upgrade CUCM Licenses to 14. 20000-2。. They aren't on CCO (at least where I could find them), and searching the Cisco web site doesn't Jun 19, 2024 · Book Title. You must manually clear this notification Download the upgrade file (name ends with ". Keep in mind that you have to check for database Jan 5, 2021 · Level 1. vCPU/vRAM increases alone do not increase supported capacity, max density per cluster node or max scale per cluster. 0 Service Upgrade release will be published on top of the main release through its Software Maintenance cycle. All cluster nodes must get the same vCPU/vRAM increase. Based on the v15 upgrade guide this is possible, but CUCM v15 isn't supported on ESXi 6. Ordering Cisco Unified Communications Manager Version 15 Starting with CUCM 12. - Use a direct migration option to get to 15 (see upgrade guide on. - backup-reinstall-restore your source release in a new virtual machine. Supported Upgrade and Migration Paths. 5 May 30, 2024 · See the "Smart Software Licensing" chapter at System Configuration Guide for Cisco Unified Communications Manager. Unified CM Upgrade ISO. 01-05-2021 01:25 AM. Cluster consists the following CUCM Pub x 1 CUCM Subs x 3 IM&P Pub x1 IM&P Sub x 1 I had planned to do it in 2 parts. X to 15: Initial steps involve upgrading to version 14, followed by taking a Disaster Recovery Framework (DRF) backup. Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15. For the full onboarding process, see the "Configure Push Notifications for Cisco Jabber on iPhone and iPad" chapter at System Configuration Guide for Cisco Unified Communications Oct 19, 2022 · To check the FIPs mode, you can run "utils fips status" command from the CLI of CUCM 10. upgrade uccx to 11. txt" to view the report. Cisco’s UC offerings are regularly tested and validated to be compliant with a range of government certifications, including: Department of Defense Information Network Approved Products List (DoDIN APL) FIPS 140-2 Level 1. Options. Sep 17, 2022 · 2) Test dataBase Sanity: -" Standard CTI Secure Connection " present in "dirgroup" table. X as our system is in now in evaluation mode. End-of-Sale and End-of-Life Announcement for the Cisco CUCM Admin Security Token, 7. End any existing VMtools install: Right Click > Guest > End VMWare Tools install. 89 MB) PDF - This Chapter (0. 5(1) or 12. Call Reporting and Billing Administration Guide for Cisco Unified Communications Manager, Release 12. Running a pre-upgrade check on the publisher node to check for any issues. Step 3 Fill in the appropriate values in the Software Location section and click Next. Release Guides. 5) (PDF - 567 KB) 10/Oct/2019. Migration Guide for Cisco Unified Communications Manager and the IM and. May 2, 2024 · To resolve the installation or upgrade failure, either. 41 MB) PDF - This Chapter (1. Obtaining the upgrade file from Cisco and uploading it to the backup server. Hello, I'm running CUCM 12. ” Nov 28, 2013 · When Cisco Unified Communications Manager 10. — 2. 18901-1, we have two nodes (Publisher and Subscriber) Our upgrading action plan to moving all phones to Subscriber and upgrade the Publisher, and once the upgrade is done Jun 19, 2024 · Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15. Feb 16, 2024 · Description:🔧 Ready to dive into the world of virtualization and upgrade your Cisco Unified Communications Manager (CUCM) to version 15? In this comprehensi Nov 25, 2021 · Bring up the console on the VMware ESXi and log in. 5 cluster running on ESXi 6. 5 Software of Cisco Unified Communications Manager, Cisco Emergency Responder, Cisco Unity Connection and associated On-Premises and Hosted Flex subscription 15-Dec-2020. 15. 0 (1) Step 4. Transform your workspaces: Attract and retain the best talent wherever they are and enable them to be productive by giving them Cisco Unified CM. I have a two-node cluster on version 11. Upgrade Files to Download; Files to Download. x/7. x/8. After that you can reduce it to 1. cisco. 5(1)SU2 or higher. Upgrade the secondary subcriber nodes in parallel. 5. x Supported Platforms List. Upgrade and Migration Guide for CUCM/IM&P 14. 此测试是在OS层面升级,单台CUCM8. As far as you did not enable it on PCD, you should be good. Labels: Call Control. Pre-Upgrade Tasks (Manual Process) PDF - Complete Book (2. 0(x) is upgraded as part of a service update or a maintenance release, Cisco Sync Agent sends a notification to Cisco Unified CM IM and Presence Administration that the IM and Presence Service database publisher node and subscriber nodes must be rebooted. 5(1)SU6. If Unified Communications Manager is upgraded to version 12. Add 1 hour if a refresh upgrade. Look under "Upgrade Methods", "Direct Refresh Upgrade. It is recommended to fix the entries before upgrade. Please send a complete example configuration as best practice, apart from official configuration guide. Compatibility Matrix. Is the best option to try to do a fresh install of v15 on a 8. 5 15 ViaPCD Supported 15 Upgrade Task Direct Standard Upgrade Aug 22, 2023 · Table 1. Mahmoud Marie. 5U2 and 6. Supported Upgrade Method. 99 MB) View with Adobe Reader on a variety of devices May 19, 2022 · See the Cisco Upgrade and Migration Guide for CUCM 14. 19 MB) View with Adobe Reader on a variety of devices Mar 20, 2024 · Level 1. Troubleshooting. 5(1)SU1. 6升级到CUCM11. 5 Cisco Unified Communications Manager Version 11. PreUpgradeCheck COP file contains tests, some of which are part of Pre-upgrade tasks section of Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 11. 5, CUP 12. CHAPTER 3 DeterminetheScopeofWork 15 documentation-guide-cucm-imp-1151. If the Cisco Unified Communications Manager (CUCM) cluster is using a CA-signed certificate, upload the root and the intermediate CA certificates to the Unified CCX Tomcat trust store. 5 (1). Customers must create a Smart Account. Cisco Unity Connection 10. Replacing A Single Server or Cluster for Cisco Unified Communications Manager, Release 11. 8 MB) Oct 8, 2020 · FLEX 3 is the commercial model (subscription-based) to purchase CUCM onpremises licenses and support. Pre-upgrade Tasks. 5 15 ViaPCD Supported 15 Upgrade Task Direct Standard Upgrade End-of-Sale and End-of-Life Announcement for the Version 11. New and Changed Features There are no new features that are introduced for this release. Upgrade the Unified Communications Manager subscriber nodes to an inactive version 1 to 2 hours Jan 22, 2013 · The Operational Guide for Cisco Communcations Manager is the one document that details the best practices for upgrading and migrating to Cisco Unified Communications Manager v9. 0,其中旧CUCM的版本是8. Dec 18, 2023 · After successful upgrade to Unity Connection 15, if you need to revert the server to previous software version, you can switch version the software to older version. I have HCS UCM, HCS Unity Connections Smart licenses running until 2025 with no Version mentioned. x installs on physical MCS servers to 9. Read this document carefully before the upgrade. The device package also contains configuration files for many Cisco Webex models. gz”) to the Expressway (From Maintenance > Upgrade, then click Browse to find the upgrade file on the PC, and finally click Upgrade ). Note. 96 MB) View with Adobe Reader on a variety of devices Aug 22, 2023 · Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 12. 5, CUC 12. Applications Installed on MCS Hardware. Jul 28, 2023 · There are two types of cop files. 0 and earlier version. If an upgrade or migration from your current release is not supported, see the instructions in the section Upgrading from Legacy Releases. On the next page, monitor the progress of the upgrade. Cisco Unified Communications Manager (Unified CM) provides reliable, secure, scalable, and manageable call control and session management. Provides detailed information about upgrade paths and compatible devices and applications for Cisco Unified Communications Manager and IM and Presence Service. Step 2 From the Software Upgrades menu, select Install/Upgrade. Jan 11, 2022 · CUCM version 14 upgrade/migration. Chapter Title. 5 (1) Upgrade and Migration Guide for Cisco Unified Jun 8, 2016 · Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 11. Cisco VM Builder tool (VMWare wrapper tool) However, these new "things" are no where I can find. May 30, 2024 · Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 14SU3 and SU4. My current VMs have 2 vCPU, 4 GB memory, and 80 GB hard disk. Processors – dedicate at least 2 cores for faster installation. System Requirements for Cisco Unity Connection Release 10. Ensure that your system meets all requirements, including network requirements, platform requirements, and software requirements. PASS: You have 44888603576 bytes (41 GB) of required 20822113189 bytes (19. Hello, Anyone completed Cisco CUCM and CUC upgrade 12 to 12. 5, or at least not tested. Cisco Expressway CE1200 Appliance Installation Guide (X12. 0 (1. Install, Upgrade, and Maintenance Guide for Cisco Unity Connection Release 10. 0的guide,但我 Software Download linkunderDownload & Upgrade section,and navigatetothe UnifiedCommunications > CallControl > CiscoUnified Communications Manager (CallManager) > <Version> > Unified Oct 25, 2023 · To resolve either. 5 to 12. Cisco Unified Communications Manager Release 11. 5 SU8a. 6. Installation Guide for Cisco Unified Communications Manager and IM and Presence Service Release 11. 06 MB) Jun 8, 2016 · Upgrade Requirements with Standalone Prime License Manager. Jul 28, 2016 · Procedure. The best option is to upload the image to the datastore mount it to the DVD drive and choose the local disk image. Table 1 lists major features in Cisco Unified Communications Manager Version 12. gz") from Expressway software downloads (For example download “s42700x14_0_6. 5 (1) Cisco Unified Real-Time Dec 19, 2020 · This release will further extend Cisco Unified Communication Manager ’ s leadership through features that enrich user experiences, simplify administration workloads, enhance security while providing pathways for customers to migrate to cloud collaboration. Benefits for CUCM customers: Better cash flow through monthly and annual billing options (in addition to pre-pay option) Additional functionality included – SRST (for all) and Webex advanced messaging (for Pro and Enh user lics) Allows access Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15. Upgrading from Legacy Releases. 13 MB) View with Adobe Reader on a variety of devices Dec 18, 2019 · In CUCM 12. 5(x) PCD Migration** Version switching not supported. 5 15 ViaPCD Supported 15 Upgrade Task Direct Standard Upgrade . Customers seeking capacity increases should migrate all cluster nodes to a higher fixed capacity point as described in the design guide and upgrade guide. 37 MB) PDF - This Chapter (1. 0 ESXi cluster usi Nov 15, 2016 · direct upgrades using either the Unified CM OS Admin interface or the Cisco Prime Collaboration Deployment (PCD) Upgrade task. 28 MB) View with Adobe Reader on a variety of devices Dec 18, 2023 · When you initiate an upgrade of an application server (Cisco Unified Communications Manager, IM and Presence Service, Cisco Unified Contact Center Express, Cisco Unity Connection, or Cisco Emergency Responder) from the Cisco Prime Collaboration Deployment Upgrade task, the upgrade works in the same manner as upgrades that are initiated by the Upgrade (simple upgrades) 12. 5 (1)SU1. Version Switching* (Source to Destination and Vice Versa) Cisco Unified Communications Manager Upgrade Paths. 5 or higher, using 80GB OVA it is expected Aug 30, 2023 · Supported Upgrade Paths for Cisco Unified Communications Manager and the IM and Presence Service; Source. When the file is copied, a screen displaying the checksum value appears. 03 MB) View with Adobe Reader on a variety of devices May 22, 2024 · Book Title. 0(1)). Nov 8, 2021 · Hi, Hi we have just upgraded our CUCM 12. End-of-Sale and End-of-Life Announcement for the Cisco Unity Connection Versions 8. 5, UCCX12. 2 MB) View with Adobe Reader on a variety of devices Do this step for all upgrade and migration methods. Apr 7, 2021 · Cisco ® Unified Communications Manager (UCM) is the core of Cisco’s collaboration portfolio. 5 This document provides guidance for upgrading Cisco Unified Communications Manager (CUCM) from version 11. Jun 8, 2016 · Upgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 11. Upgrade Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 14. 0 and continuing with CUCM 15, only Smart Licensing is supported. Open CUCM Caveats in all 15 releases: CSCwi52160: Direct Migration fails from pre-15 to 15 with upgrade history from pre-10. Note Refertothe“SwitchtoPreviousVersion”sectionintheUpgrade Procedures chapteratUpgrade and Migration Guide for Cisco Unified Communications Manager and IM and Presence Service, Release 15 for detailedinstructionson“RevertingtoaPreviousVersion. Post-Upgrade Tasks. upgrade. 89 MB) PDF - This Chapter (1. fi ch eh oe ke jm jt wi uh su