For WhatsApp voice notes to work in Intercom, you'll need two things:
1. Make sure our Chrome extension is installed. This will help you listen to voice notes without download the file to your computer. You may download the Chrome extension here (make sure you're logged into Octopods):
2. Modify your Intercom settings to enable the WhatsApp voice note file type. Go to your attachment settings:
Add the ".ogg" file type. Once you've done that, you should be able to access WhatsApp voice messages in your Intercom inbox.