Glossary184EMS (Enhanced Message Service)An adaptation of the Short Message Service (SMS)that allows you to send and receive ring tones andthe service provider’s logo, as well as combinationsof simple media to and from EMS-complianthandsets. Because EMS is based on SMS, it can useSMS centres the same way that SMS does. EMSworks on all Global System for Mobilecommunications (GSM) networks. EMS senders canuse text, melodies, photos, sounds, and animationsto enhance the expressive power of messages thatare limited by the display constraints of mobiledevices.GPRS (General Packet Radio Service)New non-voice value-added service that allowsinformation to be sent and received across a mobiletelephone network. GPRS provides continuousconnection to the Internet for mobile phone andcomputer users. It is based on the Global Systemfor Mobile Communication (GSM) circuit-switchedcellular phone connections and the Short MessageService (SMS).GSM (Global System for MobileCommunication)International standard for cellular communication,guaranteeing compatibility between the variousnetwork operators. GSM covers most Europeancountries and many other parts of the world.Glossary185JavaProgramming language generating applications thatcan run on all hardware platforms, whether small,medium or large, without modification. It has beenpromoted for and geared heavily to the Web, bothfor public Web sites and Intranets. When a Javaprogram runs from a Web page, it is called a Javaapplet. When it is run on a mobile phone or pager, itis called a MIDlet.MMS (Multimedia Message Service)A message service for the mobile environment,standardized by the WAP Forum and the 3rdGeneration Partnership Program (3GPP). For phoneusers, MMS is similar to Short Message Service(SMS)-it provides automatic, immediate delivery ofuser-created content from phone to phone. Themessage addressing used is primarily phonenumbers, thus the traffic goes from phone tophone. MMS also provides support for e-mailaddressing, so that messages can be sent by e-mail. In addition to the text content of SMS, MMSmessages can contain still images, voice or audioclips, and also video clips and presentationinformation.Multi-party callingAbility to establish a conference call involving up tofive additional parties.Phone passwordSecurity code used to unlock the phone when youhave selected the option to lock it automaticallyeach time it switches on.