Copyright2003 Nokia. All rights reserved. 16Overview of the phone functionsYour Nokia 6800 phone is approved for use on EGSM 900 and GSM 1800networks. It provides many functions which are practical for daily use, such as themessaging keyboard for easy and convenient writing, calendar, clock, alarm clock,countdown timer, calculator, games and many more. Messaging conceptYour phone combines the functions of a normal mobile phone and a messagingdevice. When the flip is closed you can use all functions of your phone like in anyother mobile phone. By opening the flip of the phone you can use the additionalmessaging keyboard, which is specially designed for writing text easily andcomfortably, see Writing and sending messages on page 69. Multimedia messaging service (MMS)The phone is able to send multimedia messages that contain text and a pictureand receive multimedia messages containing text, a polyphonic ringing tone and apicture. You can save the pictures and ringing tones for personalising your phone,see Multimedia messages on page 73. Polyphonic sound (MIDI)Polyphonic sound consists of several sound components that are played at thesame time. Your phone can play four instruments at the same time from over 40