Hey all, I'm thinking of switching my service from T-Mobile to the AT&T side of Straight Talk. I can't find good answers on this, so I'm hoping you can help. Can I MMS with my iPhone 5s on Straight Talk? I saw something about switching APNs, but I'm not sure. Can I use MMS if I port my number to Google Voice? Finally, I can't seem to find the option if it is there, but is there a way to switch the default MMS app to some other program? Like Google Hangouts? Thanks!