Avaya XM24 Expansion Module (700406523) – 24-Button Digital Phone Add-On

Avaya XM24 Expansion Module (700406523) – 24-Button Telephone Add-On

The Avaya XM24 Expansion Module (700406523) is a professional telephone accessory designed to expand the call-handling capabilities of compatible Avaya 6400 Series digital desk phones. Featuring 24 additional programmable call appearance and feature buttons, the XM24 provides convenient access to frequently used lines and telephone-system functions.

Designed for compatible Avaya 6416D+M and 6424D+M telephones, the gray XM24 expansion module features dual red and green status indicators beside each programmable button. This allows users to monitor assigned line appearances and supported features directly from their workstation.

The XM24 connects to the compatible telephone's dedicated expansion-module port and requires an appropriate external Avaya power supply. It is ideal for receptionists, administrative assistants, customer service teams and businesses operating supported Avaya digital telephone systems.

Avaya XM24 Expansion Module Key Features

• Genuine Avaya XM24 telephone expansion module
• Manufacturer part number: 700406523
• Adds 24 programmable call appearance and feature buttons
• Dual red and green status indicators for each button
• Designed for compatible Avaya 6400 Series digital phones
• Compatible with Avaya 6416D+M and 6424D+M models
• Connects to the telephone's dedicated XM24 expansion port
• Supports programmable business calling features where enabled by the PBX
• One XM24 expansion module supported per compatible telephone
• Requires a compatible external Avaya power supply
• Gray housing matching compatible Avaya business telephones
• Desktop installation alongside the host telephone

Technical Specifications

• Brand: Avaya
• Model: XM24
• Part Number: 700406523
• Product Type: Digital Telephone Expansion Module
• Programmable Buttons: 24
• Button Arrangement: Two Columns
• Status Indicators: Red and Green LEDs
• Connection: Dedicated XM24 Telephone Expansion Port
• Supported Host Phones: Avaya 6416D+M and 6424D+M
• Maximum Modules Per Phone: 1
• Power Requirement: Compatible External Avaya Power Supply
• Mounting: Desktop Installation
• Color: Gray
• Technology: Digital PBX Telephone Accessory
• Standalone Operation: No

Compatible Avaya Telephones

• Avaya 6416D+M Digital Telephone
• Avaya 6424D+M Digital Telephone

Other 6416/6424 variants may support an XM24 with the appropriate mounting configuration and system support. Confirm the host telephone model, stand, connection cable and PBX requirements before purchasing.

Power and Installation Requirements

The Avaya XM24 requires a supported external power supply connected through the compatible host telephone. The Avaya 1151B1 is specified in earlier Avaya documentation, while later IP Office documentation identifies 1151D1 and 1151D2 power supplies for supported configurations.

A compatible XM24 connection cord, telephone power cord and appropriate mounting hardware may also be required. The XM24 and attached telephone must be installed on a suitable desktop surface and are not intended for wall mounting as a combined assembly.

Why Choose the Avaya XM24?

The Avaya XM24 allows businesses to expand the number of available programmable buttons without replacing a compatible 6400 Series telephone. Additional buttons help receptionists and office staff manage multiple line appearances and access frequently used system features more efficiently.

Its dedicated status indicators make it especially useful in busy business environments where quick visual feedback and organized call handling are important.

Common Use Cases

• Reception desks and front offices
• Administrative assistant workstations
• Business call-handling environments
• Multi-line digital telephone installations
• Existing Avaya 6400 Series systems
• Replacement or expansion of supported digital phone installations

What's Included

• 1 x Avaya XM24 Expansion Module (700406523)

Host telephone, external power supply, connection cord and mounting stand are not guaranteed to be included. Confirm the exact contents of the selected product condition and package before ordering.