Yealink SIP-T2 SERIES Administrator's Manual page 784

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
- (Optional.) If you mark the DHCP radio box, you can configure the static DNS
address in the corresponding fields.
4. Click Confirm to accept the change.
A dialog box pops up to prompt that the settings will take effect after a reboot.
5. Click OK to reboot the phone.
To configure SLAAC feature via web user interface (only applicable to SIP
VP-T49G/SIP-T48G/T46G/T29G):
1. Click on Network->Advanced.
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