The man who made the first mobile phone call exactly 40 years ago says all he could hear was the sound of stunned silence, because the person on the other end couldn't believe it. Martin Cooper called rival company AT&T who were still focused on making phones that only worked in cars.
In 1973 the battery life was only 20 minutes, but that didn't matter because the phone was so heavy. Martin Cooper spoke to Geraint Vincent via a newer telecommunications device - Skype:
More top news
David Cameron will try to convince MPs that Britain should be striking so-called Islamic State targets in Syria on Thursday.
Prince Harry has paid tribute to his mother, Princess Diana, and his nanny by naming buildings at a new African charity centre after them.
Strike action by doctors does not create a greater risk of patients dying, a new study has found.