Courtesy of Jeff Schertz http://twitter.com/#!/jdscher
http://blog.schertz.name/2011/08/polycom-dma-and-lync-integration/
Polycom DMA and Lync Integration
August 30, 2011 by Jeff SchertzThe past video conferencing integration articles have primarily discussed the Real-time Media eXperience (RMX) platform, but the Distributed Media Application (DMA) also supports direct integration with OCS and Lync and is the preferred SIP path when both devices exist in an environment.
Out-of-the-box DMA integration instructions are included in the Polycom UC Deployment Guide for Microsoft Environments document, but the steps shown don’t address the scenario where an RMX is already integrated in the network and DMA is being introduced. The documented approach would be to simply define DMA as another Application Pool and define a new route for video calls.
But there is a simpler way to approach adding DMA into an environment where there is already a functional RMX integrated into Lync. The premise is that SIP signaling will primarily be directed to the DMA instead of the RMX for the chosen routing domain, yet signaling and certificate-based TLS signaling will still be supported for the RMX. As the RMX should typically remain a Trusted Application to support certain integration features or outbound SIP calling into Lync then it would not be a good approach to simply replace the RMX configuration with the DMA information.
Calling ScenariosBefore addressing the configuration steps it is important to take a step back and understand the various call routing scenarios that are available with RMX and DMA integration with Lync Server.
* Lync Video Call to RMX
* Lync Video Call to DMA
* Lync Video Call to a Registered Virtual Meeting Room
* Lync Inbound Video Call from an RMX…Read the full article here,with topology diagrams here… http://blog.schertz.name/2011/08/polycom-dma-and-lync-integration/
The Future is...Cloudy 