I'm so confused with all the types of relay services etc. If anyone can tell me: what do I use if I don't want video, i'm crappy at signing... I can speak fine but only hear a little bit. I want to read captions, but speak to the party with my voice. I'd like to hear the other party and get captions, but not absolutely necessary. Captions are mandatory as I don't sign well yet but am at proufound deaf level. I do read lips pretty well, but no one I know will use a video phone anyway! I have an iPhone 3gs, no front camera, and whatever I use must be over wireless or 3G as voice calls are 40 cents/ min. Anyone know which service might work? Thanks so much!