Aastra Telecom SISIP 57I CT - Manual (Page 96)

Advanced Network Settings
4-30 41-001160-00, Rev 01 Release 2.0
IP Phone Administrator Guide
Configuring the IP Phones
.
Aastra Web UI
Step Action
1 Click on Advanced Settings->Network->Advanced Network Settings .
2 In the UPnP field, place a check in the “Enabled” box to turn ON UPnP.
Note: To manually configure NAT, uncheck (disable) the “Enabled” box.
3 In the NAT RTP Port field, specify the beginning of the RTP port range on the gateway.
Default is 51720.
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 .