Yealink SIP-T43U Administrator's Guide

Audio Features
178
Topic
Smart Noise Block Configuration
Smart Noise Block Configuration
The following table lists the parameter you can use to configure smart noise block.
Parameter
voice.ans_nb.enable <y0000000000xx>.cfg
Description
It enables or disables the Smart Noise Block feature.
Note: It works only if “voice.tns.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
CP920
Web UI
Settings > Voice > Noise Proof > Smart Noise Block
Acoustic Shield
The acoustic shield feature is designed for background noise suppression when you are using the phone handset
or a connected headset.
It is particularly used in the open office environment, such as the call center, where background noise can impact
far-end audio quality.
It is only applicable to T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U phones.
Topic
Acoustic Shield Configuration
Acoustic Shield Configuration
The following table lists the parameter you can use to configure the acoustic shield.
Parameter
features.acoustic_shield.mode <y0000000000xx>.cfg
Description
It enables or disables the acoustic shield feature during the call.
Permitted
Values
0-Disabled
1-Enabled, you need to manually enable acoustic shield by pressing the Acous.S On soft key during
the call.
2-Auto, the acoustic shield is automatically enabled when the call is set up. You can press the
Acous.S Off soft key during the call to disable it.
Default
0
Supported
Devices
T57W, T54W, T53W, T53, T48U, T46U, T43U, T42U
Web UI
Settings > Voice > Acoustic Shield > Acoustic Shield Mode
Parameter
features.acoustic_shield.level <y0000000000xx>.cfg
Description
It configures the noise suppression level for handsets and headsets.
The higher value represents the better noise suppression effect.
If it is set to 3, the phone automatically shields the noise out of 20 centimeters (7.9 inches) when you

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