Aastra Telecom SIP 480I - Manual (Page 62)

Basic Network Settings
4-6 41-001129-00 Rev 09, Release 1.4.1
IP Phone Administrator Guide
Configuring the IP Phones
.
Aastra Web UI
Step Action
1 Click on Advanced Settings->Network->Basic Network Settings.
2 Enable the "DHCP" field by checking the check box. (Disable this field by unchecking the box).
3 Click to save your settings.