Description
Yealink EXP43 – Specifications
General / Purpose
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Device type: Color LCD expansion module (sidecar) for compatible Yealink IP phones (e.g., T43U, T46U, T48U)
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Adds additional programmable line/function keys for reception desks, call centers, or administrative staff
Display & Screen
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Screen: 4.3‑inch color LCD
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Resolution: 272 × 480 pixels
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Backlit display with color icons for functions
Keys & Buttons
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20 physical keys per page, each with dual-color LED for status (free, busy, ringing, etc.)
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Supports up to 3 pages, giving up to 60 programmable keys per module
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3 dedicated control keys for fast page switching
Programmable Functions / Supported Features
Keys can be assigned to:
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Busy Lamp Field (BLF) / Bridge-Line Appearance (BLA) / Shared-line monitoring
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Speed-dial, hotline, direct call / extension dialing
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Call transfer, call forward, call park / pick-up, call hold, group pickup / listening, conference, voicemail / message waiting indicator
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Directory access (LDAP/XML) depending on phone or PBX support
Connectivity & Expandability
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Connection via RJ12 to compatible host phone; can daisy-chain up to 3 EXP43 modules per phone
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Total possible keys: up to 180 (3 × 60 keys)
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Power: first module can draw power from host phone; additional modules may require external power
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Adjustable stand with two angles; side-mounted next to IP phone
