Original sentence: As part of the migration of Google Voice to Google Hangouts, the Hangouts dialer app is now required to place VoIP calls, whether a user has Google Voice or not.MMS was added as well for over 100 carriers worldwide, including all four major US carriers
Edited sentence: As part of the migration of Google Voice to Google Hangouts, users can now use the Google Hangouts Dialer app to make and receive calls via VoIP.Full native MMS was finally added as well for over 100 carriers worldwide, including all four major US carriers.This also provides the benefit of making and receiving calls on other WiFi devices such as tablets that don't have voice service through a mobile carrier