UCC Networks, a Cisco Professional Services partner specializing in Unified Communications solutions, has announced that Cisco Call Manager (Unified Communications Manager) version 12.5 will officially reach End of Support (EoS) on August 31, 2025. Businesses that continue to operate on this version after the deadline risk security vulnerabilities, operational downtime, and vendor support.
Once support ends for CUCM 12.5, organizations can expect:
· No security updates – increasing exposure to cyber threats.
· No bug fixes or feature enhancements – leaving known issues unresolved.
· No Technical Assistance Center (TAC) support – making outages more difficult and costly
· Potential compatibility issues – affecting new devices, apps, and integrations.
"Upgrading ahead of the deadline allows organizations to manage the process on their own timeline and avoid operational risks,"said a spokesperson for UCC Networks. "Our team specializes in ensuring migrations are smooth, secure, and aligned with business needs."
Moving to a supported release, such as Cisco CUCM 14.x or 15.x, provides:
· Enhanced security and compliance with modern standards.
· Improved system performance and reliability.
· Access to new collaboration features to boost productivity.
· Better integration with modern communication tools.
UCC Networks provides a structured process for organizations transitioning from CUCM 12.5:
1. Assessment & Planning – Review of the current environment, dependencies, and integrations, followed by a migration roadmap.
2. UpgradeExecution – Deployment of the latest supported version with minimal downtime and thorough testing.
3. Training& Adoption – Administrator and end-user training, plus quick reference guides.
4. OngoingSupport – Proactive monitoring and long-term maintenance options.
Clients can choose to upgrade to newer Cisco versions or migrate to Webex Cloud for enhanced collaboration and flexibility. With proven expertise, UCC Networks ensures a smooth, secure, and efficient migration that keeps operations running flawlessly
With CUCM 12.5 End of Support set for August 31,2025, early planning can help organizations avoid the last-minute demand that often occurs before major vendor deadlines
UCC Networks is a communications solutions provider specializing in Cisco Professional Services, including design, deployment, migration, and support of Unified Communications systems. With expertise in complex enterprise environments, UCC Networks delivers secure, reliable, and scalable communication solutions tailored to each client’s needs.
