Yealink SIP-T2 SERIES Administrator's Manual page 202

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Procedure
NTP time server and time zone can be configured using the configuration files or locally.
Configuration File
Local
180
<MAC>.cfg
Web User Interface
Phone User Interface
Configure NTP by DHCP priority
feature and DHCP time feature.
Parameters:
local_time.manual_ntp_srv_prior
local_time.dhcp_time
Configure the NTP server, time
zone.
Parameters:
local_time.ntp_server1
local_time.ntp_server2
local_time.interval
local_time.time_zone
local_time.time_zone_name
Configure NTP by DHCP priority
feature and DHCP time feature.
Configure the NTP server, time
zone.
Navigate to:
For
SIP-T48G/T46G/T42G/T41P/T40P/T2
9G/T27P/T23P/T23G/T21(P)
E2/T19(P) E2/CP860:
http://<phoneIPAddress>/servlet
?p=settings-datetime&q=load
For SIP VP-T49G:
http://<phoneIPAddress>/servlet
?m=mod_data&p=settings-datet
ime&q=load
Configure DHCP time feature.
Configure the NTP server, time
zone.