,

Aastra M522 Expansion Module (NT4X43AA)

The Aastra Meridian M522 Expansion Module (NT4X43AA) adds 22 programmable feature keys to compatible Aastra Meridian M5216 and M5316 business phones. Ideal for receptionists and high-volume users, this refurbished expansion module is professionally tested and backed by warranty.

Aastra Meridian M522 Expansion Module (NT4X43AA)

The Aastra Meridian M522 Expansion Module (NT4X43AA) expands the functionality of compatible Aastra Meridian business phones by providing additional programmable buttons for line appearances, speed dials, and feature access. Designed for receptionists, administrative staff, and high-call-volume users, the M522 helps improve productivity and call management.

Features

  • 22 programmable feature keys
  • LCD indicators for button status
  • Supports quick access to lines, extensions, and system features
  • Up to two expansion modules can be connected to a compatible phone
  • Adds up to 44 additional programmable buttons
  • Professionally tested and refurbished
  • Warranty included

Compatibility

Compatible with:

  • Aastra Meridian M5216
  • Aastra Meridian M5316

Specifications

  • Manufacturer: Aastra
  • Model: M522 Expansion Module
  • Part Number: NT4X43AA
  • Product Type: Phone Expansion Module
  • Condition: Refurbished
  • Warranty: Included

Why Choose the Aastra Meridian M522 Expansion Module?

The Aastra Meridian M522 Expansion Module (NT4X43AA) is a practical solution for businesses that require additional programmable keys without replacing their existing phone system. By adding 22 programmable buttons, users can quickly access extensions, speed dials, and frequently used features, helping improve efficiency in busy office environments.

The M522 Expansion Module is commonly used by receptionists, administrative staff, operators, and customer service teams that handle a high volume of incoming and outgoing calls. Up to two expansion modules can be connected to a compatible phone, providing a total of 44 additional programmable buttons for enhanced call management.

Refurbished and Professionally Tested

This refurbished Aastra Meridian M522 Expansion Module has been professionally tested to help ensure reliable performance and compatibility with supported business phone systems. Refurbished telecom equipment offers a cost-effective alternative to purchasing new hardware while helping organizations extend the life of existing communications infrastructure.

Whether you are replacing a failed unit, expanding an existing workstation, or maintaining a legacy telecom system, the Aastra Meridian M522 Expansion Module (NT4X43AA) provides a dependable solution for day-to-day business communications.

Related Products

Looking for additional Aastra and Nortel phone system components? Browse our inventory of refurbished telecom equipment, replacement parts, business phones, and expansion modules to support your existing communications system.

Documentation

Need setup and operating instructions for the Aastra Meridian M522 Expansion Module (NT4X43AA)?

Download the User Guide for detailed information on phone features, programming, call handling, and system operation.

Download Aastra M522 User Guide (PDF)