How to change the notification sounds in Facebook Messenger, Hangouts, Viber, and WhatsApp (Android tutorial)
How to change the Facebook Messenger sound? There's one thing about IM services that's mighty annoying – pretty much nobody bothers to change their incoming message notification sound. That's why you hear the same tones everywhere you go, and at times, you can't be sure if it was your phone that beeped or not. The solution? Change your IM notification sound, of course. Here's how you change the default ringtones and notification sounds on Facebook Messenger, WhatsApp, Viber, and Hangouts.
Dec 28, 2018 ... You can change the Facebook Messenger sound, change the Viber notification ... Viber doesn't have an interface to pick custom ringtones and ...