Product Overview
The Yealink T43U is a professional Gigabit desktop IP phone that delivers cost-effective reception and office functionality while offering scalability for growing businesses. Designed as part of the T4U series, it combines robust performance, advanced features, and enhanced accessory support to empower businesses of all sizes.

Supporting up to 12 SIP accounts and provisioning flexibility, the T43U allows a single receptionist or operator to manage calls for multiple numbers or companies. Its 3.7” backlit display, 8 line keys, and 21 programmable memory keys provide quick access to extensions, features, and speed dials.

The T43U supports up to three EXP43 expansion modules, giving receptionists access to more than 180 BLF/line keys for efficient call handling. With dual USB ports, the T43U enables a wide range of accessory support, including Bluetooth, Wi-Fi, headsets, and call recording. Dual firmware images add resilience and ensure reliable operations in business-critical environments.

Key Features

• 3.7” backlit LCD display (360 × 160 pixels)

• 2 × Gigabit Ethernet ports with PoE support

• 12 SIP accounts

• 8 line keys

• 21 memory keys with 3-page view

• Expansion module support – Up to 3 × EXP43 modules

• Dual USB ports for flexible connectivity and accessories

• Dual firmware images for system protection

• Wall-mountable design

• Unified T4U series firmware for simplified deployment

Benefits

• Cost-effective receptionist console – Manage multiple numbers and SIP accounts from a single phone

• Scalable solution – Expand with up to 3 EXP43 modules, supporting more than 180 BLF keys

• Future-proof connectivity – Dual USB ports support Wi-Fi, Bluetooth, USB headsets, and recording

• Reliable performance – Dual firmware images safeguard against system failure

• Ideal for growing businesses – Compact design, expandable functionality, and unified firmware ease management