This document describes the results of a series of configurations that were run in a Hyper-V environment to validate that Office Communications Server on Hyper-V provides stable performance and scalability for production use.
Enterprise Voice, Remote Call Control (RCC), Response Group Service, dial-In conferencing, audio/video conferencing, Web conferencing, and Communicator Web Access desktop sharing workloads are not supported in a virtualized Office Communications Server 2007 R2 deployment. This occurs because of several factors, including packet loss, delay, jitter, and clock skew. These factors impact the quality and performance of real-time media when virtualized. However, these factors do not impact other workloads such as instant messaging and presence because these workloads are less susceptible to delay and can use the natural retry mechanisms in the SIP protocol and the underlying TCP transport.
| Role | Supported | Supported features | Unsupported features |
| Enterprise front-end server | Yes | Presence, IM | Enterprise Voice, audio/video |
| Standard Edition Server | No | ||
| IM Conferencing Server | Yes | IM Conferencing | |
| Access Edge Server | Yes | Remote Access Federation, Public IM Connectivity | |
| SQL Server back-end server | Yes | Office Communications Server Backend | |
| Group Chat Channel Server | Yes | Channel Server | |
| Group Chat Look-up Server | Yes | Channel and Load balancing management | |
| Group Chat back-end server | Yes | Group Chat database | |
| Group Chat Compliance Server | Yes | Compliance | |
| Group Chat Compliance back-end server | Yes | Compliance database | |
| Director | No | ||
| Audio/Video Conferencing Server | No | ||
| Application Sharing Conferencing Server | No | ||
| Web Conferencing Server | No | ||
| Telephony Conferencing Server | No | ||
| Archiving Server | No(1) | ||
| Monitoring | No(2) | ||
| Web Conferencing Edge Server | No | ||
| A/V Edge Server | No | ||
| Mediation Server | No | ||
| Outside Voice Control Service | No | ||
| Conferencing Attendant Service | No | ||
| Response Group Service | No | ||
| Conferencing Announcement Service | No | ||
| Update Server | No | ||
| Communicator Web Access | No |
