Configuring The Ip Phone For Use With A Firewall Or Nat - Matrix SPARSH VP710 User Manual

Configuring the IP Phone for Use with a Firewall or NAT

A firewall protects an organization's IP network by controlling data traffic from outside the network. If your IP phone
communicates with other devices through a firewall, you must configure your firewall to allow incoming and
outgoing traffic to the IP phone through the reserved ports and the required ports.
You must configure your firewall to allow incoming and outgoing traffic through the following ports:
Port
5060
5060
5061
50000-50249
(default range)
Reserved Ports
By default, the IP phone communicates through UDP ports in the 50000 - 50249 range for video and voice control.
The phone uses only a small number of these ports during a call. The exact number depends on the number of
participants in the call, the protocol used, and the number of ports required for the type of call: video or voice.
The following tables identify the number of ports required per connection by protocol and the type of call.
524
Port Type
UDP
TCP SIP (when selecting the TCP transport protocol)
TCP SIP (when selecting the TLS transport protocol)
TCP/UDP
For more information, refer to
Description
SIP (default transport protocol)
Reserved ports on the IP phone.
"Reserved Ports"
Matrix SPARSH VP710 User Guide