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

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Complete the Setup Wizard
PSTN Configuration
17. The Primary SIP Server Port has a default value based on the SIP protocol
that you selected. Do not alter this automatic port setting unless explicitly
told to do so by your data center contact. The setting must match the
Mediation Server’s listening port as defined in the Lync topology.
18. If you want to enable failover to another Lync Server Mediation Server,
select the Failover check box and follow these steps:
a. For Backup SIP Server Address, type the FQDN of the backup server.
b. For Backup SIP Server Port, type the port on which the Media Gateway
sends traffic to the backup server.
c. For Failover timeout (seconds), type the number of seconds without a
response from the Mediation Server before the Media Gateway con-
siders it down.
Figure 2-38. Setup Wizard—Call Routing Configuration Page
19. The PSTN Outbound Number Mask is a regular expression that selects
incoming phone numbers and maps all or part of the number to the dialed
number in the outbound PSTN call.