I dont normally talk on the phone when I am driving.
But I was in the car, and the phone kept ringing, and it was distracting me. I picked up because I was worried that something had happened to somebody, heard it was a sales call so said sorry and hung up straight away.
Of course the police saw me. I was pulled over and given the "you dont have to say anything speech". He gave me a parking ticket, and I paid.
I have received a court summons. 
Do they ban people from driving from one offense?
Is it better for me if I show, or should I just plead guilty by letter? What is the best or the worst outcome I can possibly hope for?