Cisco Cisco Expressway
Enable Calls to Lync
Command or Action
Purpose
Prepare the Gateway Expressway to work in your environment:
configure DNS and NTP, and enter a cluster name
configure DNS and NTP, and enter a cluster name
To route calls destined for Lync domains towards the Gateway
Expressway
Expressway
Secure the trunk to the Unified CM to enable encrypted media
between Unified CM registered endpoints and Lync clients
between Unified CM registered endpoints and Lync clients
Enable SIP TLS, trust the Gateway Expressway, and configure media
encryption
encryption
To route calls destined for Lync domains towards the internal Lync
environment
environment
To verify this part of the configuration.
Table 3 Overview of Tasks Required to Enable Calls from Collaboration Endpoints to Lync Clients (All Internal)
Configure the Gateway Expressway
Command or Action
Purpose
So that the Gateway Expressway can resolve trusted Lync Servers
(B2BUA hosts)
(B2BUA hosts)
So that Lync Server static routes can resolve the Gateway
Expresswaycluster
Expresswaycluster
To synchronize the Gateway Expressway with thte Lync Server
environment
environment
Table 4 Prepare the Gateway Expressway for the Network
Task 1: Configure DNS and Local Hostname
Configure the DNS Server Details
The Gateway Expressway(s) should be configured to use the same DNS server(s) as Lync Server.
On a Lync Server:
1.
From the Windows Start menu choose Run.
2.
Type
cmd
into the Open field and click OK. A command window opens.
Cisco Systems, Inc.
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