# End of sale of Cisco on-premises contact center 12.5 and 12.6 Canonical: https://warmtransfer.net/knowledge/cisco-on-premises-contact-center-end-of-sale Last verified: 2026-09-24 Cisco announced the end of sale and end of life for versions 12.5 and 12.6 of its on-premises contact center applications under bulletin identifier EOL15696 on 30 June 2025[^11][^1]. This single announcement covers Unified CCE, Packaged CCE, Unified CCX, and Unified CVP together with their associated on-premises software and licenses[^39]. ## Milestone dates and policy alignment Cisco defines the end-of-sale date in bulletin EOL15696 as the last date to order the product through Cisco point-of-sale mechanisms[^13]. The end of software maintenance releases date is defined as the last date that Cisco Engineering may release any final software maintenance releases or bug fixes[^15]. Cisco defines the last date of support as the last date to receive applicable service and support for the product as entitled by active service contracts[^21]. | Milestone | Date | | --- | --- | | End-of-Life Announcement Date | 30 June 2025[^1] | | End-of-Sale Date | 31 December 2025[^12] | | Last Ship Date | 31 March 2026[^19] | | End of SW Maintenance Releases Date | 31 December 2026[^14] | | End of New Service Attachment Date | 31 December 2026[^10] | | End of Service Contract Renewal Date | 31 December 2027[^16] | | Last Date of Support | 31 December 2027[^20] | Cisco's end-of-life policy states that external notification of end of sale is typically 6 months before the end-of-sale date, and provides 2 years of TAC support for application software from the end-of-sale date[^34][^35]. WarmTransfer's reading of the sources is that the EOL15696 milestone dates follow Cisco's standard application software intervals: 6 months from announcement to end of sale, 1 year from end of sale to end of software maintenance, and 2 years from end of sale to last date of support[^42]. ## Support continuity and vulnerability handling Cisco states that customers with active service contracts continue to receive Cisco Technical Assistance Center support for 12.5 and 12.6 on-premises contact center software after the end-of-sale date, within the milestone dates in the bulletin[^40]. WarmTransfer's reading of the sources is that the end-of-sale date of 31 December 2025 does not by itself require a customer to stop running or to remove Cisco on-premises contact center 12.5 or 12.6; it bars new orders while support entitlement continues under active contracts to 31 December 2027[^27]. Cisco's security vulnerability policy states that after end of sale, the availability of security fixes for vulnerabilities is defined in the product's end-of-sale bulletin[^36]. Once the last date of support is reached, Cisco PSIRT continues to accept vulnerability reports but will not analyse, fix, or disclose potential vulnerabilities[^37]. ## Migration options and release 15 upgrade requirements The migration guidance in Cisco bulletin EOL15696 is that customers move to version 15 or higher of the on-premises contact center applications[^22]. Cisco bulletin EOL15696 also offers the Cisco Technology Migration Program as a route to trade in eligible products for credit toward new Cisco equipment[^41]. In addition, Cisco bulletin EOL15696 states that remanufactured units may be available in limited supply in certain countries on a first-come first-served basis until the last date of support is reached[^38]. The release notes for Cisco Contact Center Enterprise Solutions release 15.0(1) carry an update date of 30 April 2025, 2 months before the 12.5 and 12.6 end-of-life announcement[^52]. Cisco continued to publish Engineering Special release notes for contact center enterprise 15.0(1) after the 12.5 and 12.6 end-of-sale date, with documents dated 31 March 2026 and 31 July 2026[^49]. Documented upgrade paths to version 15 include: - Unified CCE 15.0(1) supports upgrades from Unified CCE 12.5(2) or 12.6(x)[^44]. - Unified CCX 15.0 supports upgrades only from Unified CCX 12.5(1), 12.5(1) SU1, 12.5(1) SU2, and 12.5(1) SU3, and any earlier release must first be upgraded to 12.5[^48]. - Unified CVP 15.0(1) documented upgrade paths start from Unified CVP 12.5(1), 12.6(1), or 12.6(2)[^9]. Unified CCE 15.0(1) upgrades land on either Windows Server 2019 with SQL Server 2019 or Windows Server 2022 with SQL Server 2022[^50]. Upgrading a Unified CCE deployment from Windows Server 2016 with SQL Server 2017 to Windows Server 2019 with SQL Server 2019 is not supported; such deployments must move to Windows Server 2022 with SQL Server 2022[^51]. Before upgrading a Hosted Collaboration Solution for Contact Center deployment to release 15.0(1), the deployment must first be switched to a Unified CCE deployment type[^18]. ## Publishing context and licensing history Cisco published the 12.5 and 12.6 end-of-sale announcement under the Cisco Collaboration Flex Plan collateral path rather than under the collateral path of any individual contact center product[^28]. Cisco's Unified CCX end-of-life notice index lists the version 12.5/12.6 on-premises contact center applications notice with the printed date 30/Jun/2025[^46]. Prior milestones for contact center releases and licensing include: - Earlier Cisco bulletin EOL13640 announced end of sale for contact center enterprise 12.0 on 23 January 2021 with an end-of-sale date of 23 April 2021 and a last date of support of 30 April 2024[^2]. That bulletin directed customers to migrate using Cisco Collaboration Flex Plan Contact Center under part number A-FLEX-CC[^3]. - Cisco bulletin EOL14628, announced 31 January 2022, ended sale of perpetual licensing for Unified CCE, Packaged CCE, Unified CVP, and HCS for Contact Center on 1 August 2022 with a last date of support of 31 July 2024[^29]. - Cisco bulletin EOL14626, announced 31 January 2022, ended sale of perpetual licensing for Unified CCX on 1 August 2022 with a last date of support of 31 July 2024[^31]. WarmTransfer's reading of the sources is that Cisco retired the perpetual licensing model for on-premises contact center in 2022 and the 12.5 and 12.6 software versions in 2025 as 2 separate end-of-sale events with different scopes and different milestone dates[^32]. ## See also - See also [Migrating Unified CCE or Unified CCX to Webex Contact Center](https://warmtransfer.net/knowledge/webex-cc-migration-from-ucce). - See also [UCCX to Webex Contact Center migration](https://warmtransfer.net/knowledge/uccx-to-webex-contact-center). - See also [Telephony during a UCCX to Webex Contact Center migration](https://warmtransfer.net/knowledge/uccx-to-webex-cc-telephony-coexistence). - See also [The UCCX to Webex Contact Center discovery tool](https://warmtransfer.net/knowledge/uccx-discovery-tool). ## Applicability Applies to: Cisco Unified Contact Center Express, Cisco Unified Contact Center Enterprise, Cisco Unified Customer Voice Portal, Cisco Contact Center Enterprise solution, Cisco HCS for Contact Center, Cisco Packaged Contact Center Enterprise, and all Cisco products. Deployments: on-premises, multi-tenant, and partner-hosted. Sources checked 2026-09-22. The releases covered are versions 12.5 and 12.6 across Unified CCE, Packaged CCE, Unified CCX, and Unified CVP, as well as destination release 15.0(1) for Unified CCE and Unified CVP, and release 15.0 for Unified CCX[^39][^44][^48][^9]. ## What remains uncertain Security fix availability between the end of software maintenance releases on 31 December 2026 and the last date of support on 31 December 2027 is not covered by the sources below. Whether Webex Contact Center serves as an alternative migration destination to on-premises version 15 is not covered by the sources below. Supported upgrade paths for Packaged CCE 15.0(1) are not covered by the sources below. How version 15 is ordered under Collaboration Flex Plan Contact Center after the 12.5 and 12.6 end of sale is not covered by the sources below. Whether Cisco publishes an end-of-sale announcement for on-premises contact center version 15 is not covered by the sources below. Cisco Unified Communications Manager 12.5 lifecycle milestones as a dependency of contact center 12.5 and 12.6 are not covered by the sources below. Whether Engineering Special releases for 12.6(2) continued after the 31 December 2025 end of sale is not covered by the sources below. Whether 12.5 and 12.6 software images stay downloadable after the last date of support is not covered by the sources below. ## Sources [^1]: Cisco published the end-of-life announcement for version 12.5 and 12.6 on-premises contact center applications on 30 June 2025. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, row End-of-Life Announcement Date. Checked 2026-09-22. [^2]: The earlier Cisco bulletin EOL13640 announced end of sale for contact center enterprise 12.0 on 23 January 2021 with an end-of-sale date of 23 April 2021 and a last date of support of 30 April 2024. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Unified Contact Center Enterprise, Cisco Packaged Contact Center Enterprise, Cisco Unified Intelligent Contact Management Enterprise, and Cisco HCS for Contact Center 12.0](https://www.cisco.com/c/en/us/products/collateral/customer-collaboration/unified-contact-center-enterprise/eos-eol-notice-c51-744787.html), Table 1 End-of-Life Milestones. Checked 2026-09-22. [^3]: Cisco bulletin EOL13640 told contact center enterprise 12.0 customers to migrate to subsequent versions using Cisco Collaboration Flex Plan Contact Center under part number A-FLEX-CC. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Unified Contact Center Enterprise, Cisco Packaged Contact Center Enterprise, Cisco Unified Intelligent Contact Management Enterprise, and Cisco HCS for Contact Center 12.0](https://www.cisco.com/c/en/us/products/collateral/customer-collaboration/unified-contact-center-enterprise/eos-eol-notice-c51-744787.html), Product migration options section. Checked 2026-09-22. [^4]: The version 12.5/12.6 end-of-sale notice did not appear in the Cisco Unified Contact Center Enterprise end-of-life notice index as retrieved on 22 September 2026, whose newest entry was dated 20/Sep/2023. Source: [Cisco Unified Contact Center Enterprise - End-of-Life and End-of-Sale Notices](https://www.cisco.com/c/en/us/products/customer-collaboration/unified-contact-center-enterprise/eos-eol-notice-listing.html), full notice list as retrieved. Checked 2026-09-22. [^5]: The affected product part numbers in Cisco bulletin EOL15696 include EUR-UCCE-125-SW, EUR-UCCE-126-SW, EUR-PCCE-125-SW and EUR-PCCE-126-SW for Unified CCE and Packaged CCE software. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Product part numbers section, Table 2. Checked 2026-09-22. [^6]: The Unified CCX part numbers affected by Cisco bulletin EOL15696 are EUR-CCX125MEDIA, EUR-CCX126MEDIA, CCX-125-NPS-K9=, CCX-125-SYS-K9 and CCX-125-PLR-LIC. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Product part numbers section, Table 2, rows beginning CCX and EUR-CCX. Checked 2026-09-22. [^7]: The version 12.5/12.6 end-of-sale notice did not appear in the Cisco Unified Customer Voice Portal end-of-life notice index as retrieved on 22 September 2026, whose newest version-specific entry concerned CVP 9.0(1). Source: [Cisco Unified Customer Voice Portal - End-of-Life and End-of-Sale Notices](https://www.cisco.com/c/en/us/products/customer-collaboration/unified-customer-voice-portal/eos-eol-notice-listing.html), full notice list as retrieved. Checked 2026-09-22. [^8]: The Unified CVP and Virtualized Voice Browser part numbers affected by Cisco bulletin EOL15696 include EUR-CVP125VVB-SEC, EUR-CVP125VVBMED, EUR-CVP126VVB-SEC, EUR-CVP126VVBMED, CVP-NPS-KIT=, CVP-125-SRV-LAB and CVP-125-RPT-LAB. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Product part numbers section, Table 2, rows beginning CVP and EUR-CVP. Checked 2026-09-22. [^9]: The documented upgrade paths to Unified CVP 15.0(1) start from Unified CVP 12.5(1), 12.6(1) or 12.6(2). Source: [Installation and Upgrade Guide for Cisco Unified Customer Voice Portal, Release 15.0(1) - Upgrade Unified CVP](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/customer_voice_portal/15-0-1/installation/guide/ccvp_b_1501_installation-upgrade-guide-cisco-unified-customer-voice-portal/ccvp_b_install_and_upgrade_12-5_chapter_0101.html), Upgrade Path section of the Upgrade Unified CVP chapter. Checked 2026-09-22. [^10]: The end of new service attachment date for Cisco on-premises contact center 12.5 and 12.6 application software is 31 December 2026. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, row End of New Service Attachment Date: App SW. Checked 2026-09-22. [^11]: The end-of-sale and end-of-life announcement covering Cisco version 12.5 and 12.6 on-premises contact center applications carries the Cisco end-of-life bulletin identifier EOL15696. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), bulletin header, EOL identifier field. Checked 2026-09-22. [^12]: The end-of-sale date for application software and licenses of Cisco on-premises contact center 12.5 and 12.6 is 31 December 2025. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, row End-of-Sale Date: App SW, License. Checked 2026-09-22. [^13]: Cisco defines the end-of-sale date in bulletin EOL15696 as the last date to order the product through Cisco point-of-sale mechanisms. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, definition column for End-of-Sale Date. Checked 2026-09-22. [^14]: The end of software maintenance releases date for Cisco on-premises contact center 12.5 and 12.6 application software is 31 December 2026. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, row End of SW Maintenance Releases Date: App SW. Checked 2026-09-22. [^15]: Cisco defines the end of software maintenance releases date in bulletin EOL15696 as the last date that Cisco Engineering may release any final software maintenance releases or bug fixes. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, definition column for End of SW Maintenance Releases Date. Checked 2026-09-22. [^16]: The end of service contract renewal date for Cisco on-premises contact center 12.5 and 12.6 application software is 31 December 2027. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, row End of Service Contract Renewal Date: App SW. Checked 2026-09-22. [^17]: Whether Cisco will ship security fixes for on-premises contact center 12.5 and 12.6 between 1 January 2027 and the 31 December 2027 last date of support is not settled by the available sources: the vulnerability policy frames investigation as running to last date of support, while the bulletin sets 31 December 2026 as the last date Cisco Engineering may release bug fixes (disputed). Source: [Cisco Security Vulnerability Policy](https://www.cisco.com/c/en/us/about/security-center/security-vulnerability-policy.html), Security Software Updates section, read against EOL15696 Table 1 rows End of SW Maintenance Releases Date and Last Date of Support. Checked 2026-09-22. [^18]: Before upgrading a Hosted Collaboration Solution for Contact Center deployment to release 15.0(1), the deployment must first be switched to a Unified CCE deployment type. Source: [Release notes for Cisco Contact Center Enterprise Solutions, Release 15.0(1)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/icm_enterprise/icm_enterprise_15_0_1/release/guide/rcct_b_1501_cce-solutions-rns/rcct_m_1501_cce-solutions.html), release notes section covering discontinued deployment types. Checked 2026-09-22. [^19]: The last ship date for application software and licenses of Cisco on-premises contact center 12.5 and 12.6 is 31 March 2026. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, row Last Ship Date: App SW, License. Checked 2026-09-22. [^20]: The last date of support for Cisco on-premises contact center 12.5 and 12.6 application software is 31 December 2027. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, row Last Date of Support: App SW. Checked 2026-09-22. [^21]: Cisco defines the last date of support in bulletin EOL15696 as the last date to receive applicable service and support for the product as entitled by active service contracts. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, definition column for Last Date of Support. Checked 2026-09-22. [^22]: The migration guidance in Cisco bulletin EOL15696 is that customers move to version 15 or higher of the on-premises contact center applications. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Product migration options section. Checked 2026-09-22. [^23]: Cisco bulletin EOL15696 lists no replacement part numbers alongside the affected part numbers. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Product part numbers section, Table 2 column headings. Checked 2026-09-22. [^24]: The milestone table in Cisco bulletin EOL15696 contains no end of routine failure analysis milestone, consistent with the bulletin covering software and licenses rather than hardware. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, complete row list. Checked 2026-09-22. [^25]: No end-of-sale or end-of-life announcement for Cisco on-premises contact center version 15 had been located in Cisco's contact center end-of-life notice indexes as of 22 September 2026. Source: [Cisco Unified Contact Center Express - End-of-Life and End-of-Sale Notices](https://www.cisco.com/c/en/us/products/contact-center/unified-contact-center-express/eos-eol-notice-listing.html), full notice list as retrieved, newest entry 30/Jun/2025. Checked 2026-09-22. [^26]: The milestone table in Cisco bulletin EOL15696 contains no separate end of vulnerability or security support milestone. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, complete row list. Checked 2026-09-22. [^27]: The end-of-sale date of 31 December 2025 does not by itself require a customer to stop running or to remove Cisco on-premises contact center 12.5 or 12.6; it bars new orders while support entitlement continues under active contracts to 31 December 2027 (inferred). Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones definitions for End-of-Sale Date and Last Date of Support, plus the Overview support paragraph. Checked 2026-09-22. [^28]: Cisco published the 12.5 and 12.6 end-of-sale announcement under the Cisco Collaboration Flex Plan collateral path rather than under the collateral path of any individual contact center product. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), document URL path segment cisco-collaboration-flex-plan. Checked 2026-09-22. [^29]: Cisco bulletin EOL14628, announced 31 January 2022, ended sale of perpetual licensing for Unified CCE, Packaged CCE, Unified CVP and HCS for Contact Center on 1 August 2022 with a last date of support of 31 July 2024. Source: [End-of-Sale and End-of-Life Announcement for the Perpetual Licensing for Cisco Unified Contact Center Enterprise, Packaged Contact Center Enterprise, Customer Voice Protocol, and HCS for Contact Center - Replaced by Flex Contact Center](https://www.cisco.com/c/en/us/products/collateral/unified-communications/hosted-collaboration-solution-contact-center/unified-contact-center-enterprise-eol.html), Table 1 End-of-Life Milestones. Checked 2026-09-22. [^30]: Cisco bulletin EOL14626 notes that Unified IP Interactive Voice Response and the non-production services kit remain available under perpetual licensing, outside the scope of the Unified CCX perpetual licensing end of sale. Source: [End-of-Sale and End-of-Life Announcement for the Perpetual Licensing for Cisco Unified Contact Center Express - Replaced by Flex Contact Center](https://www.cisco.com/c/en/us/products/collateral/contact-center/unified-contact-center-express/unified-contact-center-express-eol.html), Overview section, scope carve-out note. Checked 2026-09-22. [^31]: Cisco bulletin EOL14626, announced 31 January 2022, ended sale of perpetual licensing for Unified CCX on 1 August 2022 with a last date of support of 31 July 2024. Source: [End-of-Sale and End-of-Life Announcement for the Perpetual Licensing for Cisco Unified Contact Center Express - Replaced by Flex Contact Center](https://www.cisco.com/c/en/us/products/collateral/contact-center/unified-contact-center-express/unified-contact-center-express-eol.html), Table 1 End-of-Life Milestones. Checked 2026-09-22. [^32]: Cisco retired the perpetual licensing model for on-premises contact center in 2022 and the 12.5 and 12.6 software versions in 2025 as two separate end-of-sale events with different scopes and different milestone dates (inferred). Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Overview section, read against EOL14628 and EOL14626 Table 1. Checked 2026-09-22. [^33]: Cisco's end-of-life policy provides bug fixes, workarounds or patches where available for one year for application software after the first year following end of sale. Source: [Cisco End-of-Life Policy](https://www.cisco.com/c/en/us/products/eos-eol-policy.html), Policy section, bug fix paragraph. Checked 2026-09-22. [^34]: Cisco's end-of-life policy states that external notification of end of sale is typically six months before the end-of-sale date. Source: [Cisco End-of-Life Policy](https://www.cisco.com/c/en/us/products/eos-eol-policy.html), Policy section, notification paragraph. Checked 2026-09-22. [^35]: Cisco's end-of-life policy provides two years of TAC support for application software from the end-of-sale date. Source: [Cisco End-of-Life Policy](https://www.cisco.com/c/en/us/products/eos-eol-policy.html), Policy section, support duration list. Checked 2026-09-22. [^36]: Cisco's security vulnerability policy states that after end of sale, the availability of security fixes for vulnerabilities is defined in the product's end-of-sale bulletin. Source: [Cisco Security Vulnerability Policy](https://www.cisco.com/c/en/us/about/security-center/security-vulnerability-policy.html), Security Software Updates section. Checked 2026-09-22. [^37]: Cisco's security vulnerability policy states that once the last date of support is reached, Cisco PSIRT continues to accept vulnerability reports but will not analyse, fix or disclose potential vulnerabilities. Source: [Cisco Security Vulnerability Policy](https://www.cisco.com/c/en/us/about/security-center/security-vulnerability-policy.html), Security Software Updates section. Checked 2026-09-22. [^38]: Cisco bulletin EOL15696 states that remanufactured units may be available in limited supply in certain countries on a first-come first-served basis until the last date of support is reached. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Product migration options section, Cisco Refresh paragraph. Checked 2026-09-22. [^39]: A single Cisco bulletin announces end of sale for versions 12.5 and 12.6 of four on-premises contact center applications together: Unified CCE, Packaged CCE, Unified CCX and Unified CVP, plus their associated on-premises software and licenses. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Overview section, opening sentence. Checked 2026-09-22. [^40]: Cisco states that customers with active service contracts continue to receive Cisco Technical Assistance Center support for 12.5 and 12.6 on-premises contact center software after the end-of-sale date, within the milestone dates in the bulletin. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Overview section, support paragraph. Checked 2026-09-22. [^41]: Cisco bulletin EOL15696 offers the Cisco Technology Migration Program as a route to trade in eligible products for credit toward new Cisco equipment. Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Product migration options section, Technology Migration Program paragraph. Checked 2026-09-22. [^42]: The EOL15696 milestone dates follow Cisco's standard application software intervals: six months from announcement to end of sale, one year from end of sale to end of software maintenance, and two years from end of sale to last date of support (inferred). Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Table 1 End-of-Life Milestones, read against the Cisco end-of-life policy intervals. Checked 2026-09-22. [^43]: Unified CCE 12.5(1) is not named as a direct upgrade source for Unified CCE 15.0(1); the guide names only 12.5(2) and 12.6(x). Source: [Cisco Unified Contact Center Enterprise Installation and Upgrade Guide, Release 15.0(1) - Upgrade Overview](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/icm_enterprise/icm_enterprise_15_0_1/installation/guide/ucce_b_150_install_upgrade_guide/upgrade_overview.html), Unified CCE Upgrade Overview section, supported upgrade paths. Checked 2026-09-22. [^44]: The supported upgrade path to Unified CCE 15.0(1) is from Unified CCE 12.5(2) or 12.6(x). Source: [Cisco Unified Contact Center Enterprise Installation and Upgrade Guide, Release 15.0(1) - Upgrade Overview](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/icm_enterprise/icm_enterprise_15_0_1/installation/guide/ucce_b_150_install_upgrade_guide/upgrade_overview.html), Unified CCE Upgrade Overview section, supported upgrade paths. Checked 2026-09-22. [^45]: Despite its 12.5/12.6 title, Cisco bulletin EOL15696 affects Unified CCX only at release 12.5 for system and licence SKUs, with 12.6 represented by a media kit part number alone, because no Unified CCX 12.6 release exists (inferred). Source: [End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications (UCCE, PCCE, UCCX, CVP) and associated On-Premises software and licenses](https://www.cisco.com/c/en/us/products/collateral/unified-communications/cisco-collaboration-flex-plan/12-5-12-6-ucce-pcce-uccx-cvp-eol.html), Product part numbers section, Table 2, CCX rows, read against the Unified CCX support page release list. Checked 2026-09-22. [^46]: Cisco's Unified CCX end-of-life notice index lists the version 12.5/12.6 on-premises contact center applications notice with the printed date 30/Jun/2025. Source: [Cisco Unified Contact Center Express - End-of-Life and End-of-Sale Notices](https://www.cisco.com/c/en/us/products/contact-center/unified-contact-center-express/eos-eol-notice-listing.html), notice list entry titled End-of-Sale and End-of-Life Announcement for the Cisco Version 12.5/12.6 of On-Premises Contact Center applications. Checked 2026-09-22. [^47]: Cisco's Unified CCX product support page lists releases 11.6, 12.0, 12.5 with service updates SU1 to SU3, and 15.0, and lists no 12.6 release. Source: [Cisco Unified Contact Center Express - Support and Downloads](https://www.cisco.com/c/en/us/support/customer-collaboration/unified-contact-center-express/series.html), release selector list on the Unified CCX support and downloads page. Checked 2026-09-22. [^48]: Upgrades to Unified CCX 15.0 are supported only from Unified CCX 12.5(1), 12.5(1) SU1, 12.5(1) SU2 and 12.5(1) SU3, and any earlier release must first be upgraded to 12.5. Source: [Cisco Unified Contact Center Express Install and Upgrade Guide, Release 15.0 - Unified CCX Upgrade](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_15_0/install/guide/uccx_b_150_install-and-upgrade-guide/uccx_m_150_unified-ccx-upgrade.html), Unified CCX Upgrade Types section. Checked 2026-09-22. [^49]: Cisco continued to publish Engineering Special release notes for contact center enterprise 15.0(1) after the 12.5 and 12.6 end-of-sale date, with documents dated 31 March 2026 and 31 July 2026. Source: [Cisco Packaged Contact Center Enterprise 15.0(1) - Support and Documentation](https://www.cisco.com/c/en/us/support/contact-center/packaged-contact-center-enterprise-15-0-1/model.html), Release Notes list on the Packaged CCE 15.0(1) support page, entries ES202603 and ES202607. Checked 2026-09-22. [^50]: Unified CCE 15.0(1) upgrades land on either Windows Server 2019 with SQL Server 2019 or Windows Server 2022 with SQL Server 2022. Source: [Cisco Unified Contact Center Enterprise Installation and Upgrade Guide, Release 15.0(1) - Upgrade Overview](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/icm_enterprise/icm_enterprise_15_0_1/installation/guide/ucce_b_150_install_upgrade_guide/upgrade_overview.html), Unified CCE Upgrade Overview section, supported platform combinations. Checked 2026-09-22. [^51]: Upgrading a Unified CCE deployment from Windows Server 2016 with SQL Server 2017 to Windows Server 2019 with SQL Server 2019 is not supported; such deployments must move to Windows Server 2022 with SQL Server 2022. Source: [Cisco Unified Contact Center Enterprise Installation and Upgrade Guide, Release 15.0(1) - Upgrade Overview](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/icm_enterprise/icm_enterprise_15_0_1/installation/guide/ucce_b_150_install_upgrade_guide/upgrade_overview.html), Unified CCE Upgrade Overview section, platform restriction note. Checked 2026-09-22. [^52]: The release notes for Cisco Contact Center Enterprise Solutions release 15.0(1) carry an update date of 30 April 2025, two months before the 12.5 and 12.6 end-of-life announcement. Source: [Release notes for Cisco Contact Center Enterprise Solutions, Release 15.0(1)](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/icm_enterprise/icm_enterprise_15_0_1/release/guide/rcct_b_1501_cce-solutions-rns/rcct_m_1501_cce-solutions.html), document header, Updated date. Checked 2026-09-22. [^53]: Unified CCE 12.5(1) is not named as a direct in-place-upgrade source to 15.0(1): the guide's Supported Upgrade Paths table lists exactly one in-place-upgrade row, 'Unified CCE 12.5(2)/12.6(x) to Unified CCE 15.0(1)', naming no 12.5(1) row. But the same guide's Upgrade Prerequisites section documents a 12.5(1)-to-15.0(1) reporting migration: 'When you migrate the reporting from 12.5(1) or 12.5(2) to 15.0(1), you will encounter changes related to report filters.' The gap is therefore partial: a full platform in-place upgrade from 12.5(1) is undocumented, while a 12.5(1) reporting migration to 15.0(1) is documented. Source: [Cisco Unified Contact Center Enterprise Installation and Upgrade Guide, Release 15.0(1) - Upgrade Overview](https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/icm_enterprise/icm_enterprise_15_0_1/installation/guide/ucce_b_150_install_upgrade_guide/upgrade_overview.html), Unified CCE Upgrade Overview section, Supported Upgrade Paths table and Upgrade Prerequisites section. Checked 2026-09-24. [^54]: Cisco's Unified CCX support page's release selector now lists only two releases: Unified Contact Center Express 12.5(1) (Status: Not Orderable, End-of-Support Date: 31-Dec-2027) and Unified Contact Center Express 15.0(1) (Status: Available, Release Date: 30-Apr-2025). It lists no 11.6, 12.0, SU1-SU3, or 12.6 release; 11.6 and 12.0 survive only in a separate, older Data Sheets list further down the page. Source: [Cisco Unified Contact Center Express - Support and Downloads](https://www.cisco.com/c/en/us/support/customer-collaboration/unified-contact-center-express/series.html), release selector list on the Unified CCX support and downloads page. Checked 2026-09-24.