Polycom DOC2230A manual Field Description Port Range, Definitions

Chapter 3 - Initial System Configuration

Table 3-17: Fixed Ports & NAT Options (Continued)

Field	Description
Port Range	In this example port number 1037 has not been
Definitions	allocated, as the starting range for audio and video
(cont.)	port allocation has to be an even number. If an odd
	number is entered an error message appears to
	remind you of this requirement.
	Note: You can allocate the same port number to
	different channels provided the numbers are in two
	different protocols; one is in TCP and the other is in
	UDP. For example you can allocate port numbers
	2000-2009 to the Signaling channel in TCP and
	ports 2000 -2002 to the Audio channel in UDP.
Signaling [TCP]	Define the ports used for transferring call setup
	messages. After you enter the first port in the range,
	the system automatically fills in the last port in the
	range according to the total number of calls.
Control [TCP]	Define the ports used for control messages (setup,
	maintenance, and teardown of sessions). After you
	enter the first port in the range, the system
	automatically fills in the last port in the range.
Audio [UDP],	Define the ports used for audio and video channels.
Video [UDP]	After you enter the first port in the range, the system
	automatically fills in the last port in the range.
Data [TCP]	Define the ports used for transferring data packets:
	file transfer, whiteboard, and application sharing.
	The recommended port range is 49152 to 65535.
	After you enter the first port in the range, the system
	automatically fills in the last port in the range
	according to the total number of calls.
FECC [UDP]	Define the ports used for FECC. After you enter the
	first port in the range, the system automatically fills
	in the last port in the range.

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