I'm selling my iPhone 4 tomorrow. The only thing that won't transfer from my 4 to 5 is the voicemail. I only have new VM messages on my iPhone 5. My 4 has my older messages that I want to save. AT&T said there is no way to transfer them. The rep suggested that I use the voice memo to save them. So I'd have to play each one from my 4 and hope it records clearly to my 5 Is there no other way?