Yealink SIP-T2XP Administrator's Manual page 40

Administrator's Guide for SIP-T2xP and SIP-T19P IP Phones
3. Click Confirm to accept the change.
A dialog box pops up to prompt that settings will take effect after a reboot.
4. Click OK to reboot the IP phone.
To configure static DNS address when DHCP is used via web user interface:
1. Click on Network->Basic.
2. In the IPv4 Config block, mark the DHCP radio box.
3. Mark the Static DNS radio box.
4. Enter the desired values in the Primary DNS and Secondary DNS fields.
5. Click Confirm to accept the change.
A dialog box pops up to prompt that settings will take effect after a reboot.
6. Click OK to reboot the IP phone.
To configure DHCP via phone user interface:
1. Press Menu->Settings->Advanced Settings (password: admin) ->Network->WAN
Port->IPv4.
2. Press
3. Press the Save soft key to accept the change.
The IP phone reboots automatically to make settings effective after a period of time.
If DHCP is disabled or IP phones cannot obtain network parameters from the DHCP
server, you need to configure them manually. The following parameters should be
configured for IP phones to establish network connectivity:
IP Address

Subnet Mask

24
or to highlight the DHCP IP Client field.