Polycom RMX 2000/4000 Administrator’s Guide
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Table 15 Defau lt IP Service – Conferencing – Ports Parameters
Field Description
Fixed Ports Leave this check box clear if you are defining a
Network Service for local calls that do not require
configuring the firewall to accept calls from external
entities.
When un-checked, the system uses the default port
range. Select this option to enable other port ranges
or to limit the number of ports to be left open.
TCP Port from - to Displays the default settings for port numbers used
for signaling and control.
To modify the number of TCP ports, enter the first
and last port numbers in the range.
The number of ports is calculated as follows:
Number of simultaneous calls x 2 ports (1 signaling
+ 1 control).
UDP Port from - to Displays the default settings for port numbers used
for audio and video.
To modify the number of UDP ports, enter the first
and last port numbers in the range.
The number of ports is calculated as follows:
Number of simultaneous calls x 6 ports (2 audio + 4
video).
If the network administrator does not specify an adequate port range, the
system will accept the settings and issue a warning. Calls will be rejected
when the MCU’s ports are exceeded.