The EXP43 by Yealink is an expansion unit compatible with professional IP phones SIP-T43U, SIP-T46U, and SIP-T48U. It supports up to three expansion units, each of which can accommodate up to 60 programmable keys with three pages of switching. The large 272×480 pixel color LCD screen with backlighting and the twenty physical keys with two-color LEDs make user navigation easier and make it ideal for managing a high volume of calls.

• Features a 4.3″ 272×480-pixel backlit screen
• 20 physical keys with two-color LEDs
• Supports up to 40 additional keys through page switching
• 3 independent control keys with lit LEDs for quick page switching
• Programmable for shared line, BLF directory, call parking, conferences, transfer, group pickup, group listen, LDAP, XML Browser
• Has a front and super central wall for ergonomic viewing angle
• Requires an external Yealink power supply (5V/2A) to support two or three expansion units
• Can be adapted for Yealink T43U/T46U/T48U IP phones
• USB port (compatible with 2.0) for data input and output

Dimensions: 196.5mm x 124.0mm x 137.5mm x 42.6mm

Operating temperature: 0~40°C (+32~104°F)

Operating humidity: 10~95%