1. ​​Introduction to CUC_11.5_v1.2.ova Software​​

CUC_11.5_v1.2.ova is a preconfigured virtual appliance image for deploying Cisco Unified Communications Manager (CUCM) 11.5 in enterprise environments requiring ISO 27001-compliant voice infrastructure. This Open Virtualization Format (OVA) package integrates critical security patches and performance optimizations validated under Cisco’s Q3 2022 Unified Communications Certification Program.

​​Key Specifications​​

  • ​​Version​​: 11.5.1.20000-2
  • ​​Release Date​​: September 2022 (aligned with Cisco Security Advisory cisco-sa-20220928-cucm)
  • ​​Compatibility​​: VMware ESXi 6.7+/Hyper-V 2019

2. ​​Key Features and Improvements​​

a) ​​Security Enhancements​​

  • Implements TLS 1.3 for SIP trunk encryption (RFC 8446 compliance)
  • Addresses CVE-2022-20968 vulnerability in JTAPI services

b) ​​Virtualization Optimization​​

  • Reduces VM boot time by 40% through streamlined service initialization
  • Supports dynamic resource allocation for up to 5,000 IP phones per cluster

c) ​​Protocol Support​​

  • Enhanced SIP for 5G VoNR interoperability (3GPP TS 24.229 v17.4.0)
  • WebRTC gateway integration for browser-based softphones

3. ​​Compatibility and Requirements​​

​​Component​​ ​​Supported Versions​​
​​Hypervisors​​ VMware ESXi 6.7+, Hyper-V 2019+
​​Storage​​ 500GB thin-provisioned disk
​​Memory​​ 32GB RAM (64GB recommended)
​​CPU​​ 8 vCPUs (Intel Xeon Silver 4210R+)

​​Critical Notes​​:

  • Incompatible with CUCM 12.x clusters due to certificate chain differences
  • Requires vSphere Client 6.7.3+ for OVA template validation

4. ​​Obtaining the Software​​

To download CUC_11.5_v1.2.ova:

  1. Visit ​​https://www.ioshub.net/cucm-virtual-appliances​​
  2. Select “CUCM 11.5 Virtualization” → “v1.2 Security Hardened Edition”
  3. Complete $5 identity verification for enterprise download authorization
  4. Request SHA-256 checksum (e.g., 8f3c79…b2a1) via secure support portal

This technical documentation complies with Cisco’s 2022 Virtualization Security Framework and ISO/IEC 27001:2022 standards. For full deployment guidelines, refer to Cisco’s official portal at software.cisco.com.

​​Tags​​: 《Cisco CUCM 11.5虚拟设备》, 《企业通信安全合规包[(@rplace=10001)》

Performance Validation:

  • Cluster failover testing achieved 98.7% uptime in 5-node deployments
  • SIP message processing throughput increased to 12,000 transactions/sec
  • RAM utilization optimized through Java heap memory management (JVM 11.0.15)

Note: Configuration requirements may vary based on regional telecommunications regulations.

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