well I don't know about emails but the first time we went to visit my aunts grave after the funeral GPO (Now BT) was parked there, the man was up a pole installing a line thankfully she must have forgotten our number. When i was at home one day I came in to hear dad saying "You have been gone a long time " he then put down the phonewhen i asked him who he had been talking to he siad the voice on the phone said "Hello it's yer auntie jean." not bad considering the woman had been dead 40 years by then.