It sounds a good concept.
Store your emeergancy contact as ICE in your mobile phone. The emergancy service will then know who to contact.
Short extract :-
A Cambridge-based paramedic has launched a national campaign with Vodafone to encourage people to store emergency contact details in their mobile phones.
Bob Brotchie, a clinical team leader for the East Anglian Ambulance NHS Trust, hatched the plan last year after struggling to get contact details from shocked or injured patients.
By entering the acronym ICE â€“ for In Case of Emergency â€“ into the mobileâ€™s phone book, users can log the name and number of someone who should be contacted in an emergency.
it seems to be taking off http://news.bbc.co.uk/1/hi/england/4674331.stm
Mr Brotchie told Radio 4's Today programme: "I was reflecting on some difficult calls I've attended, where people were unable to speak to me through injury or illness and we were unable to find out who they were.
"I discovered that many people, obviously, carry mobile phones and we were using them to discover who they were.
"It occurred to me that if we had a uniform approach to searching inside a mobile phone for an emergency contact then that would make it easier for everyone."
Mr Brotchie said his idea had spread as far as the USA and Australia and had gathered pace since the 7 July attacks.
He has urged mobile manufacturers to take it on board by adding ICE headings to phones before they are sold.