Polycom 1500 Administrator's Manual page 1105

RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator's Guide
3 Click the SIP Servers tab.
4 Make sure that the SIP Server is set to Specify.
5 Make sure that the SIP Server Type is set to Microsoft.
6 Make sure that the IP address of the Office Communications Server 2007 or Lync Server 2010 is
specified and the Server Domain Name is the same as defined in the OCS/Lync Server and in the
Management Network for the DNS.
Polycom®, Inc. 1073