
Configuration Note 3. Configuring Lync Server 2013
Microsoft Lync and XO Technology SIP Trunk 19 AudioCodes Mediant E-SBC
7. Define a root trunk for the PSTN gateway. A trunk is a logical connection between the
Mediation Server and a gateway uniquely identified by the following combination:
Mediation Server FQDN, Mediation Server listening port (TLS or TCP), gateway IP
and FQDN, and gateway listening port.
Notes:
• When defining a PSTN gateway in Topology Builder, you must define
a root trunk to successfully add the PSTN gateway to your topology.
• The root trunk cannot be removed until the associated PSTN gateway
is removed.
Figure 3-8: Define the Root Trunk
a. In the 'Listening Port for IP/PSTN Gateway' field, enter the listening port that the
E-SBC will use for SIP messages from the Mediation Server that will be
associated with the root trunk of the PSTN gateway (e.g., 5067).
b. In the 'SIP Transport Protocol' field, select the transport type (e.g., TLS) that the
trunk uses.
c. In the 'Associated Mediation Server' field, select the Mediation Server pool to
associate with the root trunk of this PSTN gateway.
d. In the 'Associated Mediation Server Port' field, enter the listening port that the
Mediation Server will use for SIP messages from the SBC (e.g., 5067).
e. Click Finish.
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