Cisco Cisco Expressway
Enable Calls from Lync
Command or Action
Purpose
Provide the B2BUA application on the Gateway Expressway with a list of
sources of Lync calls. The addresses you need depends on how the Lync Server
environment is structured
sources of Lync calls. The addresses you need depends on how the Lync Server
environment is structured
Route Lync-originated calls from the Gateway Expressway to the Unified CM
Enable Lync Server to route unrecognized addresses in the internal SIP domain
to the Gateway Expressway
to the Gateway Expressway
To verify that calls from Lync clients are routed properly
Table 11 Overview of Tasks Required to Enable Calls from Lync Clients to Collaboration Endpoints (All Internal)
Configure the B2BUA Trusted Hosts
When you're creating static routes from the Lync environment, you must configure the B2BUA to trust the hosts at the
source of those routes. The hosts that the Expressway needs to trust depend on the structure of the Lync
environment:
source of those routes. The hosts that the Expressway needs to trust depend on the structure of the Lync
environment:
If…
Trust the…
the Lync environment has a single FE Server
Lync FE Server
the Lync environment has multiple front end servers (the deployment
covered by this document)
covered by this document)
Lync FE Servers which will be
sending traffic towards the Gateway
Expressways
sending traffic towards the Gateway
Expressways
)
Hardware Load Balancer and the
Lync Directors
Lync Directors
Lync Director
the Lync environment has no Lync Director but a Hardware Load Balancer
in front of Front End Servers (see
in front of Front End Servers (see
Hardware Load Balancer and the
Lync FE Servers
Lync FE Servers
1.
Go to Applications > B2BUA > Microsoft Lync > B2BUA trusted hosts.
2.
Click New.
3.
Configure the fields as follows:
Name
Name to identify Lync device
IP address
IP address of the device
Type
Lync device
33
Cisco Expressway with Microsoft Lync Deployment Guide
Configuration