Yealink SIP-T2 SERIES Administrator's Manual page 781

In the ICMPv6 Status block, select the desired value from the pull-down list of Active.
2.
Click Confirm to accept the change.
3.
A dialog box pops up to prompt that the settings will take effect after a reboot.
Click OK to reboot the phone.
4.
To configure IPv6 address assignment method via phone user interface:
Press Menu->Settings->Advanced Settings (default password: admin)
1.
->Network->WAN Port.
Press or to select IPv4 & IPv6 or IPv6 from the IP Mode field.
2.
Press or to highlight IPv6 and press the Enter soft key.
3.
Press or to select the desired IPv6 address assignment method.
4.
If you select the Static IPv6 Client, configure the IPv6 address and other network
parameters in the corresponding fields.
Press the Save soft key to accept the change.
5.
The IP phone reboots automatically to make settings effective after a period of time.
To configure static DNS when DHCP is used via phone user interface:
Press Menu->Settings->Advanced Settings (default password: admin)
1.
->Network->WAN Port->IPv6->DHCP IPv6 Client.
Press or , or the Switch soft key to select Enabled from the Static DNS field.
2.
Enter the desired value in the IPv6 Pri.DNS and IPv6 Sec.DNS field respectively.
3.
Press the Save soft key to accept the change.
4.
The IP phone reboots automatically to make settings effective after a period of time.
Configuring Advanced Features
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