Came across this in another forum, thought it may prove especially useful for lads who go off road riding, where mobile phone reception can often be poor.
Taken from an interesting article in 'The Update' magazine from George Fisher Ltd which could save someone's life one day. Applies only in UK
From MRT trainer Lyle Brotherton.
Sometimes in a poor reception area a text message can get through where a voice call can't, however the catch was that you could not text 999. Well now you can; you just have to register first.
How to? 1) Text 'register' to 999 2)After a minute you will get a text back, to which you reply 'yes' 3) The system will then text you to confirm registration 4) That's it I have done the above and registered my phone.