Mes collègues et moi utilisons le même compte d'utilisateur

This is possible, but as soon as you use the app, it checks if you are logged in multiple times. It will automatically log out the other apps. This only happens if you have registered a VoIP account.

Making calls with an app cannot work well in combination with multiple colleagues. Taking turns being logged in can work, but this doesn't provide any guarantee. We therefore recommend using a separate account for each colleague.

Making calls with an app cannot work well in combination with multiple colleagues. If you don't connect a VoIP account to the app, you can use the app to adjust availability. For example, by switching between mobile numbers or devices when you take turns being on duty.