hangouts does everything BUT this.<p>The UI shows several user accounts that you have to keep switching. it is a total nightmare.<p>then, the worst offense, you have absolutely no idea if you send a message to someone, if it will go via hangouts http IM message or via SMS. you have zero control&#x2F;feedback from the UI. The ONLY way to know, is to create contacts with just email address and others with just phone numbers. and even then, sometimes it will go via hangouts IM when you send to a phone number-only contact.<p>the separation between an app for first class SMS (and nothing else) and google voice (for google voice) was the right choice and it still works.<p>DO NOT pair gvoice to hangouts. you&#x27;ve been warned.