Polycom 1500 Administrator's Manual page 1151

RealPresence Collaboration Server (RMX) 1500/1800/2000/4000 Administrator's Guide
iii Browse to the saved Certificate on the Workstation and click the Yes button to install the
certificate.
For more information see:
Appendix H - Integration Into Microsoft

 Polycom Unified Communications Deployment Guide for Microsoft Environments, Configuring
Your Collaboration Server System for use with the Lync
3 Register the Collaboration Server with the Lync Server.
a In the IP Network Services Properties dialog box, click the SIP Servers tab.
b In the SIP Server field, select Specify.
c In the SIP Server Type field, select Microsoft.
d Set Refresh Registration every 3600 seconds.
e If not selected by default, change the Transport Type to TLS.
f In the SIP Servers table, enter the IP address of the Lync Server in both the Server IP Address or
Name and Server Domain Name fields.
g In the SIP Servers table, the Port field must be set to 5061.
h In the Outbound Proxy Servers table, enter the IP address in the Server IP Address or Name field.
(The same value as entered in Step f.)
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