Aastra Telecom 55I Manuale Utente

Pagina di 818
Operational, Basic, and Advanced Parameters
41-001160-00, Release 2.1, Rev 04
A-21
Configuration Parameters
Appendix A
Parameter – 
sip nat rtp port
NAT RTP Port
(in Phone UI and Web UI)
IP Phone UI
Options->Administrator Menu->
SIP Settings->RTP Port Base
Aastra Web UI
Advanced Settings->Network->
Advanced Network Settings
Configuration Files
aastra.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 parameter to send RTP data using a different 
port.
Format
Integer
Default Value
51720
Range
Not Applicable
Example
sip nat rtp port: 51730
Parameter – 
sip nortel nat support
Nortel NAT Traversal 
Enabled
(in Web UI)
IP phone UI
Options->Administrator Menu->SIP Settings
Aastra Web UI
Advanced Settings->Network
Configuration Files
aastra.cfg, <mac>.cfg
Description
Enables or disables the phone to operate while connected to a network 
device that enforces NAT.
Format
Integer
Default Value
0 (disabled)
Range
0 (disabled)
1 (enabled)
Example
sip nortel nat support: 1