Yealink SIP-T43U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Supported Backlight Options
The following table lists available configuration options to configure the backlight of phone models/expansion mod-
ules:
Phone Model (and the connected
expansion module)
Configuration Options
T57W(EXP50)
T54W(EXP50)
T48U(EXP43)
T48S/G(EXP40)
T46U(EXP43)
T46S/G(EXP40)
T29G(EXP20)
Inactive Level (not applicable to EXP50/EXP43)
Active Level
Backlight Time (not applicable to EXP50/EXP43)
T53W/T53(EXP50)
T43U(EXP43)
T27G(EXP20)
T42U
Active Level
Backlight Time (not applicable to EXP50/EXP43)
T42S/G
T41P/S
T40P/G
T23P/G
T21(P) E2
CP920
Backlight Time
Backlight and Time Configuration
The following table lists the parameters you can use to configure screen backlight and time.
Parameter
phone_setting.active_backlight_level <y0000000000xx>.cfg
Description
It configures the intensity of the LCD screen when the phone is active.
Note: If the expansion module is connected, the backlight on the expansion module automatically
changes to match this setting.
Permitted
Values
Integer from 1 to 10
Default
8
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T42U, T29G, T27G
Web UI
T48S/T48G/T46S/T46G/T29G/T27G:
Settings > Preference > Active Backlight Level
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Settings > Preference > Active Level
Phone UI
Color Screen Phones:
Menu > Basic > Display > Backlight > Active Level

Yealink SIP-T43U Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Wall mountable	Yes
Sustainability certificates	REACH, RoHS
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Power consumption (typical)	2.2 W
Bluetooth version	4.1
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS, IPv6, LLDP/CDP/DHCP VLAN
USB 2.0 ports quantity	2
Lines quantity	12 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
Voice codecs	AGC, AJB, AMR-NB, AMR-WB, G.711Mu, G.711a, G.723.1, G.726, G.729ab, OPUS, PLC, VAD, iLBC
Number of handles included	1 pc(s)
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	3.7 \
Display resolution	360 x 160 pixels
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	206.2 mm
Width	224.9 mm
Height	174.9 mm
Package depth	223 mm
Package width	246 mm
Package height	120 mm