Installation & Maintenance Manual 15. Configuring the SIP Transport Type
Version 6.8 153 Microsoft Lync Server
15.1.3 Step 3: Configure the DNS Server
The procedure below describes how to configure the IP address of the Domain Name
System (DNS) servers. This is required if the Mediation Server is configured with an
FQDN, in which case, the DNS is used to resolve it into an IP address.
To configure the DNS servers:
1. Open the IP Settings page (Configuration tab > VoIP menu > Network > IP
Settings).
Figure 15-3: DNS Server Settings
2. In the 'Primary DNS' and 'Secondary DNS' fields, enter the IP address of the primary
and secondary DNS server, respectively.
3. Click Submit to apply your changes.
4. On the toolbar, click Burn to save the changes to the PSTN gateway flash memory.