Yealink SIP-T48G Administrator's Manual page 86

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
2. Select DHCP IPv4 Client and then press the Enter soft key.
3. Press the Save soft key to accept the change.
The IP phone reboots automatically to make settings effective after a period of
time.
Static DNS address(es) can be configured and used even though DHCP is enabled.
Procedure
Static DNS can be configured using the configuration files or locally.
Configuration File
Local
Details of Configuration Parameters:
network.static_dns_enable
Description:
Triggers the static DNS feature to on or off.
0-Off
1-On
If it is set to 0 (Off), the IP phone will use the IPv4 DNS obtained from DHCP .
If it is set to 1 (On), the IP phone will use manually configured static IPv4 DNS.
66
<y0000000000xx>.cfg
<MAC>.cfg
Web User Interface
Phone User Interface
Parameters
Configure the static DNS feature.
Parameters:
network.static_dns_enable
Configure static DNS address.
Parameters:
network.primary_dns
network.secondary_dns
Configure the static DNS feature.
Configure static DNS address.
Navigate to:
http://<phoneIPAddress>/servlet
?p=network&q=load
Configure the static DNS feature.
Configure static DNS address.
Permitted Values
0 or1
Default
0