Hi guys, I can't get my voicemail set up when not answered I do all the prompts and stuff but it does nothing and just rings out, I've asked the agents and every time I ask they keep telling me to do the same but don't seem to answer the second part of the question which I keep askin which is " I have an iPhone 4 is there any other setting I need to do on the phone along with doing the go48 prompts?" Please help!!!