aastra m5312 digital phone with power supply (nt4x37)
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Aastra M5312 Digital Phone (NT4X37)

The Aastra M5312 Digital Phone (NT4X37) features a large adjustable display, 10 programmable keys, speakerphone functionality, and support for Meridian expansion modules. Includes power supply, professionally tested, and backed by warranty.

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Aastra M5312 Digital Phone with Power Supply (NT4X37)

The Aastra M5312 Digital Phone (NT4X37) is a feature-rich business telephone designed for organizations using Nortel Meridian and Norstar phone systems. Equipped with a large adjustable display, 10 programmable feature keys, speakerphone functionality, and support for expansion modules, the M5312 is an ideal solution for users who manage high call volumes and require efficient access to business communication features.

Features

  • Large adjustable display
  • 10 programmable line and feature keys
  • Speakerphone functionality
  • Displays calling and called names
  • Supports Multiple Appearance Directory Numbers (MADNs)
  • In-use indicators for ring again, call forward, and message waiting
  • Hold, release, and volume control keys
  • Compatible with Meridian M536 and M518 add-on modules
  • Professionally tested
  • Warranty included

Includes

  • Aastra M5312 Digital Phone
  • Handset
  • Handset Cord
  • Phone Line Cord
  • Stand
  • User Guide
  • Button Pack
  • Power Supply

Compatibility

Compatible with supported Nortel Meridian and Norstar business phone systems.

Supports Meridian M536 and M518 add-on modules for additional line and feature expansion.

Specifications

  • Manufacturer: Aastra
  • Model: M5312 Digital Phone
  • Part Number: NT4X37
  • Product Type: Digital Business Phone
  • Programmable Keys: 10
  • Display: Large Adjustable Display
  • Speakerphone: Yes
  • MADN Support: Yes
  • Expansion Module Support: Meridian M536 and M518
  • Power Supply: Included
  • Warranty: Included

Why Choose the Aastra M5312 Digital Phone?

The Aastra M5312 is designed for businesses that require dependable call handling and enhanced communication features. Its programmable keys, speakerphone capability, and large display make it an excellent choice for office professionals, administrative staff, and customer service teams.

Support for Multiple Appearance Directory Numbers (MADNs) allows users to efficiently manage shared directory numbers, while compatibility with Meridian expansion modules provides additional flexibility for growing business needs. The M5312 remains a popular option for organizations maintaining existing Nortel telecom infrastructure.

Professionally Tested

Each Aastra M5312 Digital Phone (NT4X37) is professionally tested to help ensure reliable performance and compatibility with supported business phone systems. It provides a cost-effective solution for maintaining and expanding existing telecommunications environments.

Related Products

Looking for additional Aastra and Nortel phone system equipment? Browse our selection of digital business phones, expansion modules, replacement handsets, and telecom system components.

Documentation

Need setup and operating instructions for the Aastra M5312 Digital Phone (NT4X37)?

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

Download Aastra M5312 User Guide (PDF)

 

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