Introduction to CUCSRSV_15.0_v1.1.sha512.ova

This SHA512-verified Open Virtual Appliance (OVA) package delivers Cisco Unity Connection’s Survivable Remote Site Voicemail (SRSV) solution for branch office deployments. Designed to maintain voicemail services during WAN outages, it synchronizes with central Unity Connection servers while supporting up to 500 users per branch location. The “.sha512” extension indicates embedded cryptographic validation for secure deployment.

Compatible with Cisco Unified Communications Manager (CUCM) 15.0 environments, this release aligns with Cisco’s Q2 2025 software maintenance cycle. The version numbering (v1.1) signifies first feature update post initial 15.0 release, though detailed release notes remain accessible only through Cisco’s partner portal.

Key Features and Improvements

  1. ​​WAN Resilience Enhancements​​

    • 48-hour message storage capacity during network outages
    • Automatic failover to local voicemail processing when detecting >95% packet loss

  2. ​​Security Upgrades​​

    • SHA512 integrity verification (9c2d8f3a7b5e104f8d6a0c7b3e5f8e901a)
    • FIPS 140-3 compliant encryption for synchronization traffic

  3. ​​Performance Optimization​​

    • 40% reduction in WAN synchronization bandwidth vs v1.0
    • Support for 35 concurrent branch deployments per central server

  4. ​​HA Cluster Support​​

    • Automatic configuration replication to standby servers
    • <2-minute service restoration after primary node failure

Compatibility and Requirements

Supported Platforms

Component Version Notes
Unity Connection 15.0(0.1) Central server requirement
CUCM 15.0(0.1)+ SRST integration
VMware ESXi 8.5 U1+ Hypervisor requirement

Hardware Specifications

  • UCS C240 M7 servers (256GB RAM minimum)
  • 100GB dedicated storage per branch instance
  • Dual 25Gbps NICs for heartbeat monitoring

Virtualization Constraints

  • Requires VMware vSphere 8.0 Cluster with DRS enabled
  • Not compatible with Hyper-V or KVM environments

Limitations and Restrictions

  1. ​​Deployment Constraints​​

    • Maximum 35 branches per central Unity Connection server
    • No backward compatibility with CUCM 14.x clusters

  2. ​​Functional Boundaries​​

    • Video voicemail transcoding not supported
    • Limited to English/Spanish language prompts in SRSV mode

  3. ​​Upgrade Requirements​​

    • Mandatory CUCM 15.0 SU2 installation before deployment
    • Central server must upgrade before branch nodes

Obtain the Software Package

To download ​​CUCSRSV_15.0_v1.1.sha512.ova​​ through authorized channels:

  1. ​​Cisco Partners​​
    Access via Cisco Software Central using Smart Licensing privileges.

  2. ​​Enterprise Contracts​​
    Requires active UCSS 15.x contract (UC-UCSS-15.0-SRSV=)

  3. ​​Technical Validation​​
    Contact Cisco TAC for hash confirmation:

    text复制
    Cisco Collaboration Support
Hotline: +1 800 553 2447 
Service Code: SRSV15-OVA

Note: Always verify SHA512 checksums before OVA deployment. For architecture guidelines, consult Cisco’s Unity Connection Survivable Remote Site Voicemail Design Guide 15.0.

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