Yealink SIP-T21 E2 Administrator's Guide

Configuring Basic Features
251
=settings-datetime&q=load
Phone User Interface
Configure DHCP time feature.
Configure the NTP server, time zone.
Details of Configuration Parameters:
Parameters
Permitted Values
Default
local_time.manual_ntp_srv_prior
0 or 1
0
Description:
Configures the priority for the IP 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
0 or 1
0
Description:
Enables or disables the IP 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 Greenwich Mean Time (GMT).
Web User Interface:
Settings->Time & Date->DHCP Time
Phone User Interface:
Menu->Basic->Time & Date->DHCP Time->DHCP Time
local_time.ntp_server1
IP address or domain name
cn.pool.ntp.org
Description:
Configures the IP address or the domain name of the NTP server 1.
The IP phone will obtain the current time and date from the NTP server 1.
Example:

Yealink SIP-T21 E2 Specifications

General

Brand	Yealink
Model	SIP-T21 E2
Category	IP Phone
Language	English