[Johny Atos]

http://www.guildwars.com/support/faq...lt.php#support

Can I play Guild Wars on a dial-up modem?

Yes, you can. We are well aware that many users do not have broadband access, and we want the largest possible number of gamers to be able to join our game without being held back by technical issues like their Internet connection. We have designed Guild Wars to function excellently on a dial-up connection and players confirm they have no problems with their connection, even when playing on a server located in a different continent.