Mine too IIRC in 2002 I suppose. In those days, even incoming calls used to be charged a lot. So, received a wrong number was like a choona of Rs.10 or more at times. I had to check the phone number before receiving the calls in case it was unknown number to make sure it was not a choona. LOL
And honestly speaking, I have never found any phone (I must have changed a dozen or so in all these years) that has battery backup or durability of the 3310. It used to fall down from 2-3 floors above the building the ground yet it would not break. Similarly, there has been occasions when the phone was smashed etc. but it still worked. Really the chuck norris of mobile phones.