23Copyright © 2004 Nokia. All rights reserved.■ Overview of the phone functionsYour Nokia 6820 phone is approved for use on EGSM 900,GSM 1800 and GSM1900 networks. It provides many functions that are practical for daily use, such asa calendar, clock, alarm clock, and built-in camera. The camera can be used forrecording video clips and taking pictures which you can, for example, attach aswallpaper in standby mode or as thumbnail pictures in Contacts. See Camera(Menu 6) on page 131. Your phone also supports the following functions:• EDGE (Enhanced Data rates for GSM Evolution), see (E)GPRS on page 119. EDGEpacket transmission networks enable faster connection than GPRS.• The xHTML browser allows you to retrieve and view colourful and richgraphical content from service providers’ web servers. See Services (Menu 9)on page 154.• Presence-enhanced contacts allow you to conveniently share your availabilityinformation with your colleagues, family and friends with compatible devicesand services. See My presence on page 100.• Chat is a way of sending short text messages that are delivered to online users.See Chat on page 75.• A messaging keyboard for writing text comfortably, see Writing and sendingmessages on page 58.• The e-mail function allows you to write, send and retrieve e-mails from your e-mail account. See E-mail messages on page 71.• The multimedia messaging service (MMS) allows you to send and receivemultimedia messages that contain text, picture, sound or video clips to and