Copyright © 2004 Nokia. All rights reserved. 22■ Overview of the phone functionsYour Nokia 6810 phone is approved for use on EGSM 900, GSM 1800 and GSM1900 networks. It provides many functions that are practical for daily use, such ascalendar, radio, loudspeaker, clock and alarm clock. Your phone also supports thefollowing functions (many of which are network services):• EDGE (Enhanced Data rates for GSM Evolution), see EGPRS on page 123. EDGEpacket transmission networks enable faster connection than GPRS.• The xHTML browser, which allows you to retrieve and view colourful and richgraphical content from service providers’ web servers. See Services (Menu 9)on page 158.• Presence-enhanced contacts, which allow you to conveniently share youravailability information with your colleagues, family and friends withcompatible devices and services. See My presence on page 105.• Chat, which is a way of sending short text messages that are delivered toonline users. See Chat on page 80.• The messaging keyboard for writing text comfortably, see Writing and sendingmessages on page 63.• The e-mail function, which allows you to write, send and retrieve e-mails fromyour e-mail account. See E-mail application on page 76.• The multimedia messaging service (MMS), which allows you to send andreceive multimedia messages that contain text, picture, sound or video clips toand from compatible devices. You can save the pictures and ringing tones forpersonalising your phone, see Multimedia messages on page 70.