Yealink SIP-T43U Getting Started

Recovery Mode on Yealink IP phones
10
5. Press to verify the current firmware version after upgrading successfully.
Note
For VCS (Video Conferencing System) Series
The section is only applicable to the VCS series including VC400, VC120, and VC110.
The following procedures take the VC400/VC120 for reference.
Procedures
1. Long press the recessed Reset key (Use the tip of a pin to hold the reset key) and press on the
codec to trigger the recovery mode. Do not release the Reset key until the recovery mode wizard
appears on the display device.
Note
2. Enter the desired values in the IP Address, Netmask, IP Gateway and TFTP Server fields
respectively.
The IP phone must be configured in the same subnet as the TFTP server.
3. Press on the remote control to complete the recovery mode.
The video conferencing system will download and upgrade the firmware from the TFTP server. After
upgrading, the video conferencing system will initialize successfully and get ready for use.
4. Press on the VCP40 phone to verify the current firmware version after upgrading successfully.
You need to press (for SIP-T19(P) E2 IP phones), tap ->Status (for SIP VP-T49G IP
phones), tap Settings->Status (for VP59/SIP-T58A IP phones) or tap Menu->Status (for
SIP-T57W IP phones), (for SIP-T3 IP phones) to verify the current firmware version since
there is no key.
For VC110, you need to long press the Reset key and reconnect the power adapter to trigger the
recovery mode.
IP Address:
Netmask:
IP Gateway:
TFTP Server:
10. 2. 11.124
255.255.255. 0
10. 2. 11.254
10. 2. 11.123
…. Update Fail ….
Please reboot
Welcome

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