Administrator’s Guide for SIP-T2_Series_T4_Series IP Phones 
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To configure DHCP VLAN discovery via web user interface: 
1.  Click on Network->Advanced. 
2.  In the VLAN block, select the desired value from the pull-down list of DHCP VLAN 
Active. 
3.  Enter the desired option in the Option (128-254) field. 
The default option is 132. 
 
4.  Click Confirm to accept the change. 
A dialog box pops up to prompt that settings will take effect after a reboot. 
5.  Click OK to reboot the phone. 
To configure VLAN for Internet port (or PC port) via phone user interface: 
1.  Press Menu->Settings->Advanced Settings (default password: admin) 
->Network->VLAN->WAN Port (or PC Port). 
2.  Press          or      , or the Switch soft key to select the desired value from the VLAN 
Status field. 
3.  Enter the VLAN ID (1-4094) in the VID field. 
4.  Enter the priority value (0-7) in the Priority field. 
5.  Press the Save soft key to accept the change 
The IP phone reboots automatically to make settings effective after a period of 
time. 
To configure DHCP VLAN discovery via phone user interface: 
1.  Press Menu->Settings->Advanced Settings (default password: admin) 
->Network->VLAN->DHCP VLAN. 
2.  Press      or      , or the Switch soft key to select the desired value from the DHCP 
VLAN field. 
3.  Enter the desired option in the Option field.