Yealink SIP-T41S Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
218
Time Zone Time Zone Name Time Zone Time Zone Name
+1 Czech Republic(Prague) +12 Fiji Islands
+1 Denmark(Kopenhagen) +12 Russia(Kamchatka Time)
+1 France(Paris) +12 Anadyr
+1 Germany(Berlin) +12 Petropavlovsk-Kamchatsky (RTZ 11)
+1 Hungary(Budapest) +12 Marshall Islands
+1 Italy(Rome) +12:45 New Zealand(Chatham Islands)
+1 Switzerland(Bern) +13 Nuku'alofa
+1 Sweden(Stockholm) +13 Tonga(Nukualofa)
+1 Luxembourg(Luxembourg) +13 Samoa
+1 Macedonia(Skopje) +13:30 Chatham Islands
+1 Netherlands(Amsterdam) +14 Kiribati
+1 Namibia(Windhoek)
NTP Settings
You can set an NTP time server for the desired area as required. The NTP time server address can be offered by
the DHCP server or configured manually.
Topic
NTP Configuration
NTP Configuration
The following table lists the parameters you can use to configure the NTP.
Parameter
local_time.manual_ntp_srv_prior <y0000000000xx>.cfg
Description
It configures the priority for the phone to use the NTP server address offered by the DHCP server.
Permitted
Values
0- High (use the NTP server address offered by the DHCP server preferentially)
1- Low (use the NTP server address configured manually preferentially)
Default
Value
0
Web UI
Settings > Time&Date > NTP by DHCP Priority
Parameter
local_time.dhcp_time <y0000000000xx>.cfg
Description
It enables or disables the phone to update time with the offset time offered by the DHCP server.
Note: It is only available to offset from Greenwich Mean Time GMT 0.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Settings > Time&Date > DHCP Time
Phone UI
Color Screen Phones:
Menu > Basic > Time & Date > DHCP Time

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