There can be multiple reasons why you are not receiving call notifications for inbound calls:
Please check the following list:
Are you in full-screen mode ? If yes, you'll have to reduce it because this blocks notifications.
Did you enable "Silent Call notifications" in the Desktop app settings ? If yes, please uncheck.
Did you turn off the sound on your computer ?
Did you set up "Open Call Rules" in the Ottspott back-office ?
For Windows: Did you check this url: chrome://flags, search "native notifications" ? Enable it if it is not.
In case the notifications still doesn't show, please contact us via the chat widget or email us at email@example.com.