Cisco Cisco TelePresence Video Communication Server Expressway
Notes:
n
Note that trusted host verification only applies to calls initiated by Lync that are inbound to the VCS video
network. It is not necessary to configure trusted hosts if calls are only ever to be initiated from the VCS
video network.
network. It is not necessary to configure trusted hosts if calls are only ever to be initiated from the VCS
video network.
n
The VCS has a limit of 25 trusted hosts. If there are more than 25 trusted hosts, the VCS raises an alarm.
You can work around this limit by adding another "Lync gateway" VCS, or by pointing some of the Lync
servers to a Lync proxy and then trusting the proxy instead.
You can work around this limit by adding another "Lync gateway" VCS, or by pointing some of the Lync
servers to a Lync proxy and then trusting the proxy instead.
Configuring the “Lync gateway” VCS with a neighbor zone that contains
the video network
the video network
Note that in small test and demo networks, this step is not necessary as the video network VCS is the “Lync
gateway” VCS.
gateway” VCS.
1. Go to
Configuration > Zones > Zones
.
2. Click New.
We recommend that the connection to the “Lync gateway” VCS uses SIP over TLS to communicate so
that encrypted calls can be handled.
that encrypted calls can be handled.
3. Configure the following fields:
Name
“To Video network”
Type
Neighbor
SIP mode
On
SIP port
5061 (or the value that is the same as that configured on the video network
VCS for TLS mode SIP)
VCS for TLS mode SIP)
SIP transport
TLS
H.323 mode
Off
Location: Peer 1 address
IP address or FQDN of the video network VCS (or the 1st VCS in the video
network cluster)
network cluster)
Location: Peer 2 to Peer 6
address
address
IP address or FQDN of the 2nd to 6th video network cluster peers (if any)
Advanced: Zone profile
Default
4. Click Save.
Cisco TelePresence Microsoft Lync and Cisco VCS Deployment Guide (X8.5)
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Enabling Lync clients registered on Lync Server to call endpoints registered on the video network