When can you trade wirelessly in Pokemon Pearl?

Answer 1

Whenever you want!!Yes, just like before go to the top of the Pokemon center. No Wireless adapters needed. No wires needed. However, you can't trade with firered, emerald, leafgreen, ruby, or Sapphire. You can transfer them to pearl though! This is how. Complete the pokedex of Sinnoh (See all Pokemon) See Prof. Rowan then go to the Pal Park. Put a Pokemon Gameboy advance game into the bottom slot and reset the DS. On the menu click Migrate from Ruby, Saphire, Emerald, leafgreen, or firered. Choose 6 out of you PC and talk to the man in Pal Park. You get given Park Balls. (Masterballs but yellow.) Then Catch your Pokemon like they are in the safari park!!

Answer 2

yes its possiple theres people in houses that you can trade with out wireless connextoin