Business VoIP phone services

Enhance Your Communication: Yealink EXP40 Expansion Module for SIP-T46G & T48G Phones

  • The Yealink EXP40 is an expansion module designed specifically for the SIP-T46G and T48G phone models, enhancing the functionality of these devices for professional use.
  • Key features include a large graphical LCD display with backlight, offering a clear and user-friendly interface.
  • It supports up to 40 additional programmable keys, each with dual-color LED indicators, allowing for efficient call handling and easy status monitoring.
  • This module is ideal for receptionists or administrative staff who manage high call volumes, as it facilitates quick access to functions such as speed dialing and BLF (Busy Lamp Field).
  • The EXP40 seamlessly integrates with the base phone, providing expanded capabilities without compromising on aesthetics or usability. Its plug-and-play setup ensures easy installation and minimal downtime. Unique selling points include its direct compatibility with specific Yealink models, enhancing productivity without the need for additional training or complex configuration.

Yealink EXP40: Expansion Module for SIP-T46G & T48G

Elevate your communication capabilities with the Yealink EXP40 Expansion Module, a robust and versatile accessory designed specifically for the SIP-T46G and T48G Yealink desk phones. This module is engineered to enhance productivity and streamline operations in busy office environments, making it an indispensable tool for professionals who manage high call volumes or require quick access to a multitude of contacts.

Key Features:

  • Rich Visual Experience: The EXP40 features a large 160×320 graphic LCD display that offers a clear and intuitive interface. This backlit screen provides easy visibility and navigation through up to 20 physical keys, each equipped with a dual-color LED. This ensures that users can easily monitor line status at a glance, enhancing workflow efficiency.
  • Expandable Functionality: Each module allows you to add an additional 40 programmable keys, with the capability to daisy-chain up to six modules for a total of 240 additional keys. This scalability makes the EXP40 an ideal solution for receptionists, administrative assistants, call center agents, power users, and executives who need to monitor and manage multiple connections effortlessly.
  • Seamless Integration: Designed exclusively for compatibility with Yealink SIP-T46G and T48G models, the EXP40 integrates seamlessly without any complex setup procedures. It connects via a simple RJ-12 cable that ensures stability and reliability in communication.
  • Versatile Usability: The programmable keys support multiple functions such as speed dialing, BLF/BLA (Busy Lamp Field/Bridged Line Appearance), call forwarding, transfer, park, pickup, and more. This versatility allows users to customize their phone system according to specific needs and preferences.
  • Effortless Installation: Mounting the EXP40 is straightforward. It can be set up on a desk or mounted on the wall according to space availability and user convenience. The device also includes its own stand with two adjustable angles for optimal viewing.


  • Enhanced Productivity: By expanding the functional capacity of your Yealink desk phone, the EXP40 helps streamline complex operations involving numerous contacts or lines—perfect for managing large-scale communications efficiently.
  • Ease of Use: With its intuitive interface and programmable keys, even new users can quickly learn how to use the expansion module effectively.
  • Customization: Adapt your phone system’s functionality as your business grows or as needs change without requiring significant new investments in hardware.
  • Professional Aesthetics: Sporting a sleek design that complements its parent devices (SIP-T46G & T48G), the EXP40 not only performs excellently but also enhances the professional look of your workspace.

Value Proposition:

Investing in the Yealink EXP40 Expansion Module means equipping your business with tools that promote efficiency and adaptability. Ideal for industries where quick response times are crucial—such as hospitality, healthcare, financial services—the EXP40 ensures that every call is handled as smoothly and professionally as possible. Enhance your team’s performance by giving them control over their communications environment with an easy-to-use interface that supports rapid adjustments on-the-fly.

Transform how you communicate within your organization by integrating the Yealink EXP40 into your office’s communication system—a smart move towards future-proofing your business interactions.




Expansion Module

See which fits your needs

  • Specs
  • Yealink T34W Business Phone

  • Cisco IP Phone 8845

  • Poly VVX 601

  • Avaya J179 IP Phone

  • Product


  • Display Type

  • 7-inch Adjustable Color Touchscreen

  • 5-inch 800x480 pixel WVGA color display

  • 4.3-inch 480x272 pixel color LCD screen

  • 3.5-inch color display

  • Connectivity

  • Dual-band Wi-Fi (2.4 GHz/5 GHz), Dual Gigabit Ethernet ports

  • Gigabit Ethernet switch, Integrated Bluetooth

  • Dual Gigabit Ethernet, Integrated Bluetooth® 2.1 EDR

  • Dual Gigabit Ethernet, Wi-Fi option

  • Audio Quality

  • HD voice with Smart Noise Filtering

  • Wideband audio, full duplex speakerphone

  • HD Voice technology, Acoustic Clarity™ technology

  • Opus codec support, Full duplex speakerphone

  • Video Capabilities

  • None

  • 720p HD two-way video

  • None

  • None

  • USB Ports

  • USB 2.0 for headset connection

  • None

  • Dual USB ports (2.0 compliant)

  • None

  • SIP Accounts

  • Up to four SIP accounts

  • Up to 5 SIP accounts

  • 16 SIP lines (registrations)

  • Eight SIP registrations

  • Additional Features

  • Power over Ethernet (PoE), Headset support via USB

  • Manual shutter for privacy, programmable soft keys

  • Voicemail and videomail support, Adjustable base height

  • Supports up to three 24-button Expansion Modules

  • Management Platforms

  • Yealink Device Management Platform (YDMP)

  • Third-party call control support

  • Zero Touch Provisioning, Web-based configuration

  • Avaya Device Enrollment Services for easier setup

  • Scale Effortlessly with Advanced VoIP Systems

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    Desktop Phones

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    Conference Phones

    Cordless Phones

    ATAs & VoIP Gateways


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