See this link for a collection of compatible custom sounds: Sound Files
Custom Sound Files (IX Support Tool)
Changing Call Destination (IX Support Tool)
Chime Schedule Settings (IX Support Tool)
Configuring After Hours Ringback Tone (IX Support Tool)
Configuring an IX-RS Sub Station a Master Station (IX Support Tool)
Configuring External Signaling (IX Support Tool)
Configuring Timer Settings (IX Support Tool)
Connecting a Door Station to an External Call Button (IX Support Tool)
Custom Call Transfer Destinations for Doors (IX Support Tool)
Custom Sound Files (IX Support Tool)
Displaying Speed Dial Buttons on an IX-MV7* Home Screen (IX Support Tool)
Enabling Door Release Contacts on the IX-RS (IX Support Tool)
Exporting and Importing Configuration Files (IX Support Tool)
How to Initialize/Factory Reset an IX Series Station
IX Series - Paging with a Door Station's Speaker Output
IX | IXG Series Door Station Volume Levels
IX | IXG Series Multicast Paging
IX-SOFT Hostname Calling (IX Support Tool)
IX-SOFT Map Settings (IX Support Tool)
IXW-MAA Flow Chart (IX & IXG Support Tools)
IXW-MA Relay Output Association (IX Support Tool)
Network Security Summary (IX Support Tool)
Noisy Environment (IX Support Tool)
Option Input Settings (IX Support Tool)
Option Relay Control with IX-MV7 Speed Dial Button (IX Support Tool)
Paging and All Call (IX Support Tool)
Programming an IX-DF4 or COP-IX-DF6 (IX Support Tool)
Programming IX Series Emergency Stations (IX Support Tool)
Receptionist Mode on the IX-MV7 (IX Support Tool)
Redeploying IX-SOFT to a New PC (IX Support Tool)
Recovering Administrator ID and Password from Expanded IX Series Stations (IX & IXG Support Tool)
Reducing Chime Volume (IX Support Tool)
Setting Up Door Station to Door Station Communication (IX Support Tool)
Setting Up Sub Station to Sub Station Communication With Auto-Answer (IX Support Tool)
Speed Dial Definitions for IX | IXG Series Answering Stations (IX & IXG Support Tool)
Station Replacement (IX Support Tool)
System Takeover and Expansion Guide (IX Support Tool)
Updating Station Firmware (IX Support Tool)
Using the IXW-MA To Trigger an Input When a Station Goes Offline (IX Support Tool)
SIP Registration
IX Series - Canadian CSC Specification (Master Format: 2014)
IX Series Bell Schedule Tool Instructions
IX | IXG Series Door Station Volume Levels