Aastra Telecom 41-001343-02 Network Address Translation NAT Settings, Support signals 0-9, #

Operational, Basic, and Advanced Parameters

Network Address Translation (NAT) Settings

Parameter –	Configuration Files
sip nat ip	aastra.cfg, <model>.cfg, <mac>.cfg
Description	IP address of the network device that enforces NAT.
Format	IP Address
Default Value	0.0.0.0
Range	Not Applicable
Example	sip nat ip: 192.245.2.1

Parameter –	Configuration Files
sip nat port	aastra.cfg, <model>.cfg, <mac>.cfg
Description	Port number of the network device that enforces NAT.
Format	Integer
Default Value	0
Range	Not Applicable
Example	sip nat port: 51620

Parameter –	Configuration Files
sip nat rtp port	aastra.cfg, <model>.cfg, <mac>.cfg
Description	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.
	The RTP port is used for sending DTMF tones and for the audio stream. Your network
	administrator may close some ports for security reasons. You may want to use this param-
	eter to send RTP data using a different port.
	Note:
	The phones support decoding and playing out DTMF tones sent in SIP INFO requests. The
	following DTMF tones are supported:
	• Support signals 0-9, #, *
	• Support durations up to 5 seconds
Format	Integer
Default Value	51720
Range	Not Applicable
Example	sip nat rtp port: 51730

A-25 41-001343-02 REV04 – 05.2014