HelloWorld creates real conference calls with up to 9 people from different countries at once. The people dialed are randomly selected from a database for each country. The audience selects the countries by pressing keys labeled with the countries' flags. All calls are recorded and can be listened to later on the HelloWorld homepage. HelloWorld is part of the Art & Technology FUTURE exhibition at the IT-ceum in Linköping between December 2006 and February 2007. More information on HelloWorld. Callrecords on the HelloWorld homepage. The Art & Technology FUTURE exhibition in Linköping. The IT-ceum in Linköping.