SBM powered by Microsoft Lync Administrator's Guide 2010-11

A-28
Ready the Data Center for an SBM Deployment
Add the Survivable Branch to the Lync Server Topology
The transport protocol and listening port apply to calls as they move from the
SBM’s internal Mediation Gateway to its internal Media, or PSTN, gateway (1
in Figure A-23).
Figure A-23. SIP Ports
Figure A-24. Lync Server 2010 Topology Builder > Define New Survivable Branch
Server—Define the PSTN Gateway Page