I decided to use google voice for my free texting purposes. I tried to do a search on how to use the number on my phone (not a Google Voice number) as the main number Google Voice uses for text messages. Logically this doesn't make sense since a message would goto to that number (the service provider), thus charging me but I'm hoping I'm wrong and that everyone's doing this. So... can I use the number my service provider has for my iphone as my google voice number in order to send and receive text messages for free? Or do I just have to give people a different number now whenever I want them to text message me.