The SIP-T43U IP phone is a feature-rich business tool for excellent communications and extended functionality. It is a 12-line IP phone that comes with a 3.7-inch large black-and-white screen and the EXP43 support. United Yealink Optima HD Voice technology and wideband codec of Opus, the T43U awards you the superb audio quality and crystal-clear voice communications. The phone feels quicker and more responsive when performing call features. Moreover, the T43U puts dual USB ports in a phone that makes Bluetooth, Wi-Fi, USB headset and USB recording come true, and you can use any two of them freely according to your needs. The Yealink new T4U series offers the same elegant appearance as the T4 line, but with improvements for greater interoperability and better collaboration.
Speakerphone: Yes
Call Services: Call Forwarding, Call Hold, Call Transfer, Call Waiting, Caller ID, Voice Mail
Volume Control:Yes
Indicators: Visual ringer light, Voice message waiting indicator
Hearing Aid Compatible: Yes
Additional Functions: Built-in clock, Call recording, Do Not Disturb (DND), Group call pickup, HD Voice, Music on hold, Mute, Redial
IP Telephony
Main Features: Integrated Ethernet switch, Multiple VoIP protocol support
VoIP: Yes
VoIP Protocols: SIP, SIP v2
Voice Codecs: G.711a, G.711u, G.722, G.723.1, G.726, G.729ab, iLBC, Opus
Lines Supported: 12 lines
Quality of Service: IEEE 802.1p, IEEE 802.1Q (VLAN), Type of Service (ToS)
IP Address Assignment: DHCP, PPPoE, Static
Security: IEEE 802.1X, TLS
Network Protocols: DNS, HTTP, HTTPS, IP, SNTP, SRTP, STUN, TCP, TFTP, TR-069, UDP
Network Ports Qty: 2 x Ethernet 10Base-T/100Base-TX/1000Base-T
Power Over Ethernet (PoE) Support: Yes
Voice Features: Acoustic echo cancellation (AEC), Adaptive jitter buffer (AJB), Automatic gain control (AGC), Comfort noise generation (CNG), HD Voice, Packet loss concealment (PLC), Voice activity detection (VAD), Yealink Optima HD voice technology
Network Features: Class 3 PoE, Lightweight Directory Access Protocol (LDAP), Network Address Translation (NAT)
Capacity
Phone Directory Capacity: 1000
Connections
2 x USB, Handset jack / RJ-9, Headset jack / RJ-9
Environmental Parameters
Operating humidity: 10~95%
Operating temperature: -10~50 C (+14~122 F)
1-year limited warranty