Sunday, 3 June 2012

Lync Forwarded Calls

So image this, you have an inbound call to your MS Lync client, that has SimRing, or CFA enabled, but you never receive the calls.  The "out-of-the-box" invite message that Lync sends doesn't have a REFERRED-BY header in the Invite.


This has been addressed by MS with Lync CU3, but there is still more to be done, on each mediation server that you have in your environment, the "MediationServerSvc.exe.config" file needs to be updated.
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
                <add key="<FQDN or IP Address of Gateway>.ReferredBySupported" value="true"/>
    </appSettings>
  <runtime>
    <generatePublisherEvidence enabled="false"/>
  </runtime>
</configuration>
The file is located under:

C:\Program Files\Microsoft Lync Server 2010\Mediation Server\MediationServerSvc.exe.config

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