132 x 64-pixel graphical LCD with backlight
One-touch speed dial, hotline, call forward, call waiting, call transfer, sms
Full-duplex hands-free speakerphone with AEC and Headset support

The sound quality of the Yealink SIP-T23G is excellent, thanks to the Yealink HD Voice technology. This technology prevents echo and enhances the acoustic performance.
The Yealink SIP-T23G allows you to use up to 3 SIP accounts. These accounts allow you to simultaneously make multiple calls and switch between these conversations.
The YeaLink SIP-T23G features a Dual Port Gigabit connector. This connection allows you to easily connect the T23G to a computer, so no extra PC network cable needed.

4.3″ 480 x 272-pixel colour display with backlight
Yealink Optima HD voice
Simple, flexible and secure provisioning options

Revolutionary new design
Yealink Optima HD voice
Stand with two adjustable angles

Bright and easy to read 2.7 inch LCD screen (192×64 P
Brightness and contrast levels are adjustable.
Clear and natural HD audio quality thanks to the Opus audio codec

Dual-port gigabit Ethernet
2.7″ greyscale graphical backlit LCD
HD Voice: HD Codec, HD speaker, HD handset

High-end ID design, Exceptional HD sound with wideband technology, Up to 4 simultaneous voice calls, Up to 5 DECT cordless handsets
Up to 5 Multiple Lines, 2.4″ 240 x 320 colour screen with intuitive user interface, Up to 30 hours talk time, Up to 400 hours standby time, Quick charging: 10 mins charge time for 2 hours talk time
Specification, Phone Features, Up to 4 simultaneous calls, Up to 5 handsets, up to 5 VoIP accounts, Handset select for receiving call