Polycom 2000/4000 manual 12-21

Polycom RMX 2000/4000 Administrator’s Guide

Table 15 Default 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.

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