Polycom 1500/1800/2000/4000 manual If required, click the QoS tab

IP Network Services

Default IP Service – Conferencing – Ports Parameters

Field	Description
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, and the range must be 3000
	ports per media card.
	• When ICE environment is enabled, the range must be 6000 ports per media
	card.

If you do not specify an adequate port range, the system will accept the settings but will issue a warning. Calls will be rejected when the Collaboration Server’s ports are exceeded.

12 If required, click the QoS tab.

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