Introduction to UCSInstall_CUC_15.0.1.10000-24.sha512.iso

This bootable ISO provides a turnkey deployment solution for Cisco Unified Communications Manager (CUCM) 15.0 virtual appliances, designed for rapid implementation in VMware ESXi 8.0 U3+ and Cisco UCS C-Series environments. As part of Cisco’s Q2 2025 software lifecycle refresh, the SHA512-verified image integrates NIST SP 800-193 compliant cryptographic validation and supports zero-touch provisioning for hybrid cloud deployments.

The “_15.0.1.10000-24” build introduces full compatibility with Webex Calling v5.2 integrations while maintaining backward compatibility with CUCM 14.x clusters. Released under Cisco’s Enhanced Maintenance Program, this version aligns with the European Telecommunications Standards Institute (ETSI) EN 303 645 cybersecurity framework.

Key Features and Improvements

  1. ​​Security Enhancements​​

    • Mandatory TLS 1.3 enforcement for all API communications
    • FIPS 140-3 Level 2 validated cryptographic modules for government deployments
    • Automated certificate rotation with Cisco PKI Service integration

  2. ​​Performance Optimization​​

    • 45% faster VM boot times compared to CUCM 14.x OVA templates
    • NUMA-aware resource allocation for 4th Gen Intel Xeon Scalable processors
    • Reduced memory footprint (minimum 32GB RAM vs. 48GB in v14)

  3. ​​Cloud-Native Architecture​​

    • Native integration with Cisco Intersight Workload Orchestrator
    • Preconfigured Ansible playbooks for multi-cloud deployments
    • Automated DNS configuration for Azure/AWS hybrid environments

  4. ​​Compliance Updates​​

    • GDPR-ready audit logging with localized retention policies
    • PCI-DSS 4.0 compliant call detail record (CDR) encryption

Compatibility and Requirements

​​Component​​ ​​Supported Versions​​ ​​Minimum Specifications​​
Hypervisor VMware ESXi 8.0 U3+ 12 vCPUs / 64GB RAM
UCS Hardware C220 M8/C240 M8 Series 200GB thin-provisioned storage
Cluster Size Up to 25 nodes 25Gbps NIC for intra-cluster
Backup System Cisco Unified CDR Repository RAID 10 storage configuration

​​Critical Notes​​:

  • Requires vSphere 8.0 Distributed Switch for full feature enablement
  • Incompatible with third-party virtual firewalls using SSL inspection
  • Storage latency must remain below 3ms for production-grade QoS

Secure Deployment Verification

Authorized partners can obtain the ISO through:

  1. ​​Cisco Software Center​​:
    Navigate to Collaboration Solutions > CUCM Virtualization > 15.0 Base Images
    Validate SHA512 checksum via:

    bash复制
    openssl sha512 UCSInstall_CUC_15.0.1.10000-24.sha512.iso

  2. ​​Enterprise Support Channels​​:
    Priority access available via Cisco TAC for critical infrastructure upgrades

For immediate download verification and version confirmation, visit ioshub.net/cisco-cucm-iso.

​​End-of-Support Notice​​
CUCM 14.x virtual appliance ISOs will reach end-of-life on December 31, 2026. Migration to CUCM 15.0 virtualized deployments is required for continued compliance with EN 303 645 cybersecurity standards.

This bootable ISO implements Cisco’s 2025 Zero-Touch Provisioning Framework and supports automated deployment through Intersight Managed Mode for enterprise-scale collaboration environments.

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