Yealink EXP40 LCD Expansion Module

The Yealink EXP20 LCD Expansion Module is a powerful enhancement tool designed for professionals who handle high volumes of calls, such as receptionists, administrative staff, and contact center agents. With a high-resolution 160×320 LCD display and 20 programmable dual-color LED keys, the EXP20 offers intuitive control and expanded functionality for Yealink SIP-T27P and SIP-T29G IP phones. It enables users to simplify complex call handling tasks such as BLF, speed dial, transfer, hold, and more—streamlining operations and improving responsiveness in busy work environments.

Product Features

160×320 graphic LCD with grayscale
The large backlit LCD provides a rich visual interface with 16 levels of grayscale, enhancing user experience and ease of use.

20 physical dual-color LED keys
Each key is programmable and equipped with dual-color LEDs, providing clear and immediate visual status of monitored extensions or functions.

Expandable with daisy-chaining
Users can daisy-chain up to 6 EXP20 modules, supporting up to 108 programmable keys with the help of page switching functionality.

Advanced call handling functions
Supports a wide range of functions including Busy Lamp Field (BLF), Bridge Line Appearance (BLA), speed dial, call forwarding, call pickup, intercom, hold, transfer, voicemail, and Do Not Disturb (DND).

Seamless compatibility
Designed specifically for the Yealink SIP-T27P and SIP-T29G IP phones, matching both their form factor and user interface for a consistent experience.

Flexible power options
When fewer than two expansion modules are connected, power is supplied via the host phone. External power is needed for more extensive setups.

Product Specifications

• Display: 160×320 graphic LCD, 16-level grayscale
• Programmable Keys:
  • 20 physical keys with dual-color LEDs
  • 18 additional keys via page switch
• Supported Functions: BLF, BLA, speed dial, intercom, call pickup, hold, transfer, voicemail, forward, DND
• Compatibility: Yealink SIP-T27P and SIP-T29G IP phones
• Module Expansion: Up to 6 EXP20 modules daisy-chained (maximum 108 keys)
• LED Indicators: Dual-color LEDs for status and function indication
• Connectivity: 2 x RJ12 (6P6C) ports for data input and output
• Power Supply:
  • < 2 modules powered via host phone
  • External adapter required for setups with 2 or more modules
  • Adapter input: AC 100~240V; output: DC 5V/3A
• Weight: 290g