Aastra Telecom 53I 사용자 설명서

Administrator Level Options

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41-001160-00, Release 2.1, Rev 04  

IP Phone Administrator Guide

NAT RTP Port

NAT RTP Port

sip nat rtp port

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 
parameter to send RTP data using a 
different port.

For more information, see Chapter 
4, 

Nortel NAT

Nortel NAT Traversal 
Enabled

sip nortel nat support

Enables or disables the phone to 
operate while connected to a 
network device that enforces NAT.

For more information, see Chapter 
4, 

 on 

.

N/A

Nortel NAT Timer 
(seconds)

sip nortel nat timer

The interval, in seconds, that the 
phone sends SIP ping requests to 
the Nortel proxy.

For more information, see Chapter 
4, 

 on 

.