I've just been given an iPhone 5 and so swapped sims with my iPhone 4 and transferred all the data using iTunes back-up. Unfortunately only about 10 recent voicemail messages have transferred, whereas those on my iPhone 4 (all still there) go back to 2012, just before my husband became seriously ill. I then tried to restore them via iCloud backup, with exactly the same results. What can I do to retrieve them? If v/m messages can't be transferred, why isn't there a warning? Needless to say I've rung O2, the carrier, today, with no success. All suggestions gratefully received.
