Aastra Telecom SISIP 57I CT - Manual (Page 89)

Advanced Network Settings
41-001160-00, Rev 01 Release 2.0 4-23
Network Configuration of the IP Phones
Configuring the IP Phones
.
Aastra Web UI
Step Action
1 Click on Advanced Settings->Network->Advanced Network Settings.
2 Enter a NAT IP address in the "NAT IP" field.
3 Enter a NAT port in the "NAT SIP Port" field.
4 Click to save your settings.
Note: The session prompts you to restart the IP phone to apply the configuration settings.
5 Select Operation->Reset and click ..