Tieline Bridge-IT, User Manual

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206 Bridge-IT Manual v4.0
© Tieline Research Pty. Ltd. 2019
the calls correctly, your codecs and the firewall need to be configured similarly to the
example diagram which follows. Ensure the port, IP address, Subnet Mask and Gateway
settings in your codecs match those configured in your router.
Port Forwarding to 3 Studio Codecs Sharing a Public Static IP Address
Important Note:
·
The most common studio configuration issue is a firewall which blocks the incoming
and/or outgoing TCP and UDP ports, or not configuring NAT and port forwarding
correctly. The following table lists the firewall ports you need to open for each model of
Tieline codec if they are dialing your router at the studio. If the remote codec is also
connected to a LAN with a firewall you may also need to open the ports at the remote
end of the link to connect successfully.
·
Some firewalls require symmetric port configuration. The codec supports configuration
of the "send" audio port (codec port at the remote end of the link to which you are
sending audio) and "return" audio port (port used by the local codec to receive audio
from the remote codec).