Enabling QoS for Exchange UM Media

Firstly, I don’t write too many articles on Exchange Server in fact this is first and probably the last, however I am not sure you can count Exchange UM as part of Exchange as it is really a Lync Server role as Lync deployments account for the majority of Exchange UM server deployments.

I’m not going to cover setting up Quality of Service (QoS) in a Lync environment, Elan Shudnow’s Blog already covers this really well:

Enabling QOS for Lync Server 2010 – Part 1

Enabling QoS for Lync Server 2010 – Part 2

During your QoS planning you should have already planned your audio port ranges, i.e. Audio 49152 to 57500

On your Exchange UM server you need to open either:

  • C:\Program Files\Microsoft\Exchange Server\V14\Bin\MSExchangeUM.config for Microsoft Exchange Server 2010
  • C:\Program Files\Microsoft\Exchange Server\V15\Bin\MSExchangeUM.config for Microsoft Exchange Server 2013

Within the file you will find the following section, then update according:

    <!– The min/max ports to use for RTP media.  If the values are invalid, or max < min, the default will be used –>

    <add key=”MinimumRtpPort” value=”1025″ />

    <add key=”MaximumRtpPort” value=”65535″ />

Then restart the Exchange UM service.

Finally then either as a local policy or group policies (depending on how many UM servers you need to deploy the setting to)

Under Computer Configuration -> Windows Settings -> Policy-based QoS, create QoS policy with the following settings:

  • Policy Name: Exchange UM Media
  • DSCP Value: 46
  • Specify Outbound Throttle Rate: Unchecked
  • Only applications with the following executable name: UMWorkerProcess.exe
  • Source IP: Any Source Address
  • Destination IP: Any Destination Port
  • Source Port: 49152:57500
  • Destination Port Range: To any destination port

Happy to stand corrected, let me know.

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2 thoughts on “Enabling QoS for Exchange UM Media

  1. Pingback: Enabling QoS for Exchange UM Media | ariprotheroe « JC’s Blog-O-Gibberish

  2. Pingback: ariprotheroe: Enabling QoS for Exchange UM Media « Lync News

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