If a man calls his rabbi with instructions to give his wife a get, is the get valid? Does the husband have to appear in person before a bet din?
On 9/11, I remember reading about a man who did just that, knowing he was about to die. I could not track that article today, but I found one here where the man stayed on the phone with a friend and told him he was about to die, then the building collapsed. Rav Ovadia Yosef accepted this voice recognition as evidence of the death of the man and allowed his wife to remarry.