Yealink T46G Administrator's Manual page 58

Yealink Skype for Business HD IP Phones Administrator Guide
Description:
Configures the secondary IPv4 DNS server.
Example:
network.secondary_dns = 202.101.103.54
Note: It works only if the value of the parameter "network.ip_address_mode" is set to 0
(IPv4) or 2 (IPv4 & IPv6), and "network.internet_port.type" is set to 2 (Static IP Address). If
you change this parameter, the Skype for Business phone will reboot to make the change
take effect.
Web User Interface:
Network->Basic->IPv4 Config->Static IP Address->Secondary DNS
Phone User Interface:
Menu->Advanced (default password: admin) ->Network->WAN Port->IPv4->Static
IP->Secondary DNS
To configure the IP address mode via web user interface:
Click on Network->Basic.
1.
Select desired value from the pull-down list of Mode(IPv4/IPv6).
2.
Click Confirm to accept the change.
3.
A dialog box pops up to prompt that settings will take effect after a reboot.
Click OK to reboot the Skype for Business phone.
4.
To configure a static IPv4 address via web user interface:
Click on Network->Basic.
1.
In the IPv4 Config block, mark the Static IP Address radio box.
2.
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Parameters Permitted Values Default