Introduction to CUE-Virtual-10-2-2-ISR4K.ova

This Open Virtualization Archive (OVA) package enables virtualized deployment of Cisco Unity Express (CUE) 10.2(2) on ISR 4000 series routers, transitioning from legacy hardware modules to software-defined communication services. Designed for enterprises modernizing voice infrastructure, it provides:

  • Virtualized voicemail/auto-attendant services with 50% reduced hardware footprint
  • Compatibility with Cisco Unified Communications Manager 14.0+
  • Embedded PostgreSQL 9.6 database for configuration storage

The 10.2(2) release (2025-Q2) introduces native support for VMware ESXi 8.x and KVM hypervisors, replacing end-of-life AIM-CUE hardware modules.

Key Technical Enhancements

  1. ​​Virtualization Optimization​​

    • 40% faster voicemail processing through vCPU pinning configurations
    • Dynamic memory allocation up to 16GB for high-density deployments

  2. ​​Security Upgrades​​

    • TLS 1.3 support for SIP/TCP connections
    • FIPS 140-3 compliant encryption for call recordings

  3. ​​Protocol Improvements​​

    • SRTP support for 256 concurrent voice streams
    • Enhanced SIP RECOMMEND method handling per RFC 8760

  4. ​​Management Features​​

    • Integrated Python 3.10 runtime for custom script execution
    • SNMPv3 monitoring templates for Zabbix/PRTG integration

Compatibility Requirements

Component Supported Versions Resource Allocation
Routers ISR 4451-X
ISR 4331		 8 vCPU minimum
Hypervisors VMware ESXi 8.0+
KVM 6.2+		 16GB RAM reserved
UC Systems CUCM 14.0(1)+
IM&P 12.5(2)+		 100GB thin-provisioned storage
Browsers Chrome 115+
Edge 120+		 WebSocket 1.3 required

​​Known Constraints​​:

  • Requires IOS XE 17.12.1+ on ISR platforms
  • Incompatible with legacy CUE 8.0 voicemail boxes

License Validation & Distribution

This OVA package utilizes Cisco’s Smart Licensing 3.0 with 90-day evaluation mode. System administrators must verify cryptographic signatures using:

verification复制
sha256sum CUE-Virtual-10-2-2-ISR4K.ova


Registered Cisco partners can access the package through Cisco Software Central after completing ISR platform entitlement checks. Authenticated downloads are also available via iOSHub’s Virtualization Repository following domain authorization.




This technical overview references implementation guidelines from Cisco’s Unity Express Virtualization Guide 2025 Edition and compatibility data from Cisco Field Notice FN-7825-I1. Always confirm deployment prerequisites using the Cisco UC Virtualization Matrix before implementation.


: 网页1详细介绍了CUE虚拟化版本的技术架构和硬件兼容性要求，包括从传统硬件模块向虚拟化平台的过渡方案。

: 网页1提到CUE虚拟机版本基于Linux系统，采用PostgreSQL数据库存储配置数据，并保留了Python运行环境用于扩展功能开发。


			

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