Bingo - anyone play or know the rules?

I'm thinking of making a Bingo Caller app and just want to get the rules right in my head

Would a Bingo caller just call out number from either 90, 35, or 70 - just randomly until all numbers have been called out (or I guess until someone shouts Bingo?).

What is with the letters infront of some of the numbers too? I often seen numbers like N54 B05 etc - why do they do that?

Any other info I might need to make a Bingo Caller app?

Re: Bingo - anyone play or know the rules?

You may find some helpful info about bingo calling here, Azz...

Re: Bingo - anyone play or know the rules?

....sorry I can't help Azz I have never played bingo..
I think they use ping pong balls with numbers on and call out the numbers..

Re: Bingo - anyone play or know the rules?

My Mom and Aunt used to drag me to church bingo night when I was young; never liked it and don't know the rules. Good luck, Azz!

Re: Bingo - anyone play or know the rules?

You play for a line first then a full house. Money is payed on both. The caller says the numbers and u cross them off. Each player plays as many books as they wish to increase their chances. On filling any line you shout house of yes or line (it varies) then a dolly bird tootles along and looks at the line you've marked off and calls the numbers marked back to the caller for checking and if its ok'd you get the money, same applies in the full house.

Re: Bingo - anyone play or know the rules?

Thanks guys!