Yealink T46G Administrator's Manual page 115

Details of Configuration Parameters:
Parameters
local_time.manual_ntp_srv_prior
Description:
Configures the priority for the Skype for Business phone to use the NTP server address
offered by the DHCP server.
0-High (use the NTP server address offered by the DHCP server preferentially)
1-Low (use the NTP server address configured manually preferentially)
Web User Interface:
Settings->Time & Date->NTP by DHCP Priority
Phone User Interface:
None
local_time.dhcp_time
Description:
Enables or disables the Skype for Business phone to update time with the offset time offered
by the DHCP server.
0-Disabled
1-Enabled
Note: It is only available to offset from GMT 0.
Web User Interface:
Settings->Time & Date->DHCP Time
Phone User Interface:
Menu->Basic->Date & Time->DHCP Time
local_time.ntp_server1
Phone User Interface
Permitted Values
0 or 1
0 or 1
IP Address or Domain
Name
Configuring Basic Features
Configure DHCP time feature.
Configure the NTP server and time
zone.
Default
cn.pool.ntp.org
0
0
101