How do I get someone's phone number in Pokemon Silver?

Question

i have peoples phone numbers in the game but i don't remember how to do it

Answer 1

Go up to a trainer and battle them. After the battle some trainers will offer their phone number. you can say yes or you can refuse. You can only hold so many phone numbers in your phonebook. After a couple of days the trainer should ring you looking for a rematch. You're not obliged to go, but it's good for training your Pokemon. You can always go back to a trainer who's phone number you refused earlier and accept it once you've deleted people's phone numbers you do not want.

Hope I helped. :)