Yealink SIP-T41S Administrator's Guide

Phone Customization
223
Web UI
Settings > Time&Date > Start Date
Parameter
local_time.end_time <y0000000000xx>.cfg
Description
It configures the end time of the Daylight Saving Time (DST).
Note: It works only if “local_time.summer_time” is set to 1 (Enabled).
Permitted
Values
Month/Day/Hour-DST by Date, use the following mapping:
Month: 1=January, 2=February,…, 12=December
Day: 1=the first day in a month,…, 31= the last day in a month
Hour: 0=0am, 1=1am,…, 23=11pm
Month/Week of Month/Day of Week/Hour of Day, Offset Days Forward-DST by Week, use the following
mapping:
Month: 1=January, 2=February,…, 12=December
Week of Month: 1=the first week in a month,…, 5=the last week in a month
Day of Week: 1=Monday, 2=Tuesday,…, 7=Sunday
Hour of Day: 0=0am, 1=1am,…, 23=11pm
Offset Days (Optional.): -1=one day offset forward, -2-two days offset forward,..., -6-six days offset for-
ward
Default
12/31/23
Web UI
Settings > Time&Date > End Date
Parameter
local_time.offset_time <y0000000000xx>.cfg
Description
It configures the offset time (in minutes) of Daylight Saving Time (DST).
Note: It works only if “local_time.summer_time” is set to 1 (Enabled).
Permitted
Values
Integer from -300 to 300
Default
60
Web UI
Settings > Time&Date > Offset (minutes)
Parameter
auto_dst.url <y0000000000xx>.cfg
Description
It configures the access URL of the DST file (AutoDST.xml).
Note: It works only if "local_time.summer_time" is set to 2 (Automatic).
Permitted
Values
URL within 511 characters
Default
Blank
Time and Date Manually Configuration
You can set the time and date manually when the phones cannot obtain the time and date from the NTP time
server.
The following table lists the parameter you can use to configure time and date manually.
Parameter
local_time.manual_time_enable <y0000000000xx>.cfg
Description
It enables or disables the phone to obtain time and date from manual settings.

Yealink SIP-T41S Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Keypad illumination	Yes
Wi-Fi	No
Networking standards	IEEE 802.3af
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet LAN interface type	Fast Ethernet
Supported network protocols	SIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, FTP/TFTP/HTTP/HTTPS
Volume control	Digital
Number of programmable keys	6
Lines quantity	6 lines
Phonebook capacity	1000 entries
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Input frequency	50/60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Display diagonal	2.7 \
Display resolution	192 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	CNG, G.711Mu, G.711a, G.723.1, G.726, G.729ab, VAD, iLBC
Certification	CE
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	212 mm
Height	175 mm
Package depth	223 mm
Package width	246 mm
Package height	120 mm