Yealink MeetingSpace VC500, Administrator'S Manual

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VCS Deployment Method
53
2.
Select
Enabled
from the pull-down list of
H.460 Active
.
3.
Click
Confirm
to accept the change.
To configure H.460 firewall traversal via the remote control:
1.
Select
More
->
Setting
->
Advanced
(default password: 0000) ->
H.323
.
2.
Check the
H.460
checkbox.
3.
Select
Save
, and then press to accept the change.
Intelligent Traversal
Some branch offices lack IT professionals, which means that professional network configuration
(for example: port forwarding) is impossible. Yealink VCS supports intelligent traversal
deployment. You can deploy the VCS in an intranet, and assign a private IP address which can
access the public network. This deployment method involves a simple setup process. You can
deploy the VCS without any firewall configuration. But using this method, inbound calls are
unavailable, only outbound calls are available.
The principles are introduced as below:
When VCS in the Intranet calls the VCS in the public network, the VCS in the Intranet may fail to
receive video & audio from the public network. The intelligent traversal feature allows the VCS in
the public network to check the media source address and port of incoming RTP packets, and
then send back RTP packets to the address where incoming RTP packet comes from, instead of
the address provided in the Session Description Protocol (SDP).
The following example illustrates a scenario about using audio & video intelligent
traversal:
The VCS A locates in the Intranet and the router does not support the ALG feature. The VCS B
locates in the public network. A calls B, and then A sends the RTP packets to the B.