in jubilve city
because you need better wifi
In Jublife City
either by cheating or a wifi event (but wifi event expired)
You can trade, battle, and have voice chats with your friends over Wifi in Pokemon Diamond/Pearl, but to do so you need to know your friends' Friend Codes, and your friends need to know your Friend Code.
Yup.
yes
in jubilve city
because you need better wifi
you just can't
In Jublife City
Via Nintendo Wifi.
either by cheating or a wifi event (but wifi event expired)
its the card that enables you to use the wifi station in jublife city.
Of course you can. I played my Pokemon Diamond with my cousin that has Pearl.
You can trade, battle, and have voice chats with your friends over Wifi in Pokemon Diamond/Pearl, but to do so you need to know your friends' Friend Codes, and your friends need to know your Friend Code.
You cannot.