Google is now letting Google Voice users get notifications for missed calls. Users can get notified via their Google Voice inbox or they can opt to receive email notifications (or both). 

This would appear to be another step in Google bringing together your different means of communication. Google Voice already gives you a number that when called reaches you through all of your phones. 

Google recently rolled out the ability to make and receive calls from within Gmail. The service attracted over a million calls in just 24 hours. 

Last week, Google highlighted some additional features of calling in Gmail, like call screening, switching calls between Gmail and other phones, recording incoming calls, and a click-to-dial Chrome extension. 

To turn on the Google Voice notifications, go to the Calls tab in the settings menu.