1. Introduction to Cisco_Meeting_Server_3_3_3_vSphere-6_5.ova Software

Cisco_Meeting_Server_3_3_3_vSphere-6_5.ova is the official Open Virtual Appliance (OVA) template for deploying Cisco Meeting Server (CMS) 3.3.3 on VMware vSphere 6.5 environments. This preconfigured virtual machine package streamlines the implementation of secure, enterprise-grade video conferencing infrastructure with native WebRTC browser support and hybrid cloud interoperability.

As a critical component of Cisco’s collaboration portfolio, CMS 3.3.3 enhances real-time meeting experiences through improved scalability (supporting up to 2,600 participants per cluster) and simplified certificate management. The vSphere-optimized OVA ensures seamless integration with VMware infrastructure, making it ideal for organizations consolidating UC solutions on virtualized platforms.


2. Key Features and Improvements

a. ​​Enhanced Web Collaboration​

  • Browser-based WebRTC client requiring no plugins for guest access
  • Multi-window support for simultaneous video/content sharing
  • Participant controls: mute all, PIN authentication, and role-based permissions

b. ​​Security and Compliance​

  • TLS 1.3 encryption for signaling/media streams
  • Centralized certificate management via Cisco Meeting Management (CMM)
  • FIPS 140-2 validated cryptographic modules

c. ​​VMware vSphere 6.5 Integration​

  • Native compatibility with ESXi 6.5 hypervisor and vCenter 6.5
  • Optimized resource allocation for CPU/memory-intensive codecs (H.264, VP9)
  • Automated snapshot/rollback through vSphere APIs

d. ​​Administrative Enhancements​

  • Smart Licensing integration for centralized entitlement tracking
  • LDAP synchronization for up to 300,000 user accounts
  • RESTful API for third-party UC ecosystem integrations

3. Compatibility and Requirements

​Category​ ​Supported Specifications​
VMware Platforms vSphere 6.5 Update 3, ESXi 6.5 P06+
Virtual Hardware 8 vCPU, 16GB RAM (Minimum)
Storage 120GB Thin-Provisioned Disk
Network VMXNET3 adapter, 10Gbps recommended
Certificate Authority Microsoft CA, OpenSSL, Prime PKI

​Critical Notes​​:

  • Requires VMware Tools 10.3.10 or later for optimal performance
  • Incompatible with third-party virtual switches (e.g., Cisco Nexus 1000V)

4. Software Availability and Access

The Cisco_Meeting_Server_3_3_3_vSphere-6_5.ova file is exclusively available to Cisco partners and customers with valid service contracts through:

  1. ​Cisco Software Download Center​​: Requires Cisco TAC credentials
  2. ​VMware Solution Exchange​​: For validated vSphere deployments
  3. ​Authorized Resellers​​: Contact Cisco account teams for volume licensing

For verified download options, visit iOSHub.net and search using the exact filename. Always verify SHA-256 checksums against Cisco’s published values to ensure package integrity.


This article synthesizes technical specifications from Cisco’s CMS 3.x documentation and VMware vSphere 6.5 compatibility matrices. Administrators should consult the CMS 3.3 Release Notes for deployment prerequisites and known issues.

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