Yealink SIP-T4X Administration Manual page 38

To configure a static IPv4 address via web user interface:
1. Click on Network->Basic.
2. In the IPv4 Config block, mark the Static IP Address radio box.
3. Enter the IP address, subnet mask, default gateway, primary DNS and secondary
DNS in the corresponding fields.
4. Click Confirm to accept the change.
A dialog box pops up to prompt that settings will take effect after reboot.
5. Click OK to reboot the IP phone.
To configure the IP address mode via phone user interface:
1. Press Menu->Advanced (password: admin) ->Network->WAN Port.
2. Press or to highlight the IP Address Mode field.
3. Press or to select IPv4 or IPv4&IPv6 from the IP Address Mode field.
4. 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 a static IPv4 address via phone user interface:
1. Press Menu->Advanced (password: admin) ->Network->WAN Port->IPv4.
2. Press or
3. Enter the desired values in the IP Address, Subnet Mask, Gateway, Primary DNS
and Secondary DNS fields respectively.
4. Press the Save soft key to accept the change.
, or the Switch soft key to select the Static IP from the Type field.
Getting Started
23