Yealink SIP-T4X Administration Manual page 36

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->Advanced (password: admin) ->Network->WAN Port->IPv4.
2. Press or , or the Switch soft key to select the DHCP from the Type field.
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 the network parameters manually. The following
parameters should be configured for IP phones to establish network connectivity:
IP Address

Subnet Mask

Default Gateway

Primary DNS

Secondary DNS

Getting Started
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