Sorry if this has been covered somewhere else. I just started using Google Voice, and for some reason, it's very confusing to me. Basically, all I want to do is use it for texting people who aren't on Verizon. I have the GV app on my phone, and I used it for texting (sending and receiving) a friend and it appears to have worked correctly. However, I'm reading a lot of things that talk about adding the 406 number to the person's contact info. I didn't do that, and things seem to have worked correctly. The text showed up in my inbox from their normal cell number, and when I replied, it showed as being from my GV number, there were no 406 numbers or anything like that involved. Am I missing something with these other numbers?