Aastra Telecom 57I CT, 55I, 53I manual Configuring NAT Address

IP Phone Administrator Guide

Administrator Level Options

Options	Parameter In	Parameter in	Parameters in
	IP Phone UI	Aastra Web UI	Configuration Files	Description
	NAT RTP Port	NAT RTP Port	sip nat rtp port	The RTP port is used for sending
				Indicates the port through which the
				RTP packets are sent. This value
				must specify the beginning of the
				RTP port range on the gateway or
				router.
Administrator				DTMF tones and for the audio
				stream. Your network administrator
				may close some ports for security
				reasons. You may want to use this
				parameter to send RTP data using a
				different port.
				For more information, see Chapter
				4, “Configuring NAT Address and
				Port (optional)” on page 4-21.
	Nortel NAT	Nortel NAT Traversal	sip nortel nat support	Enables or disables the phone to
		Enabled		operate while connected to a
				network device that enforces NAT.
				For more information, see Chapter
				4, “Configuring Nortel NAT
				(optional)” on page 4-18.
	N/A	Nortel NAT Timer	sip nortel nat timer	The interval, in seconds, that the
		(seconds)		phone sends SIP ping requests to
				the Nortel proxy.
				For more information, see Chapter
				4, “Configuring Nortel NAT
				(optional)” on page 4-18.

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