Yealink VC400 - Configuring the System for Use with a Firewall or NAT; Call Setup and Media Ports

Configuring Network
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3. Click Confirm to accept the change.
To configure H.323 tunneling via the remote control:
1. Select Menu->Advanced (default password: 0000) ->H.323.
2. Check the H.323 Tunneling checkbox.
3. Press the Save soft key to accept the change.
Configuring the System for Use with a Firewall or NAT
A firewall protects an organization’s IP network by controlling data traffic from outside the
network. Unless the firewall is designed to work with video conferencing equipment, you must
configure the firewall to allow incoming and outgoing traffic to the VC400/VC120 system
through the reserved ports. Users placing calls through a firewall to system may experience
one-way audio or video if the firewall is not properly configured.
Call Setup and Media Ports
To place calls to other systems through the firewall, you must configure your firewall to allow
incoming and outgoing traffic to the system through the following:
Description
Port Range
Port Type
H.323 register/call request
1719
UDP
H.323 call setup
1720
TCP
SIP (default transport protocol)
5060
UDP
SIP (when selecting the TCP transport
protocol)
5060
TCP
SIP (when selecting the TLS transport
protocol)
5061
TCP
Reserved ports on the system.
For more information, refer to Restricting
Reserved Ports on page 78.
50000-50499
(default range)
TCP/UDP