Siemens GSM 900, GSM 1900, TDMA 800, TDMA 1900 manual 103, Where can I find additional information?

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31.5.02 10-S46 FDA.fm i 37 Am Engl, A31008-H4600-A2-1-19

U.S. FDA

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People who must conduct extended conversations in their cars every day could switch to a type of mobile phone that places more distance between their bodies and the source of the RF, since the exposure level drops off dramatically with distance. For example, they could switch to:

•a mobile phone in which the antenna is located outside the vehicle,

•a hand-held phone with a built-in antenna connected to a different antenna mounted on the outside of the car or built into a separate package, or

•a headset with a remote antenna to a mobile phone carried at the waist.

Where can I find additional information?

For additional information, see the following websites:

•Federal Communications Commission (FCC) RF Safety Program (select “Information on Human Exposure to RF Fields from Cellular and PCS Radio Transmitters”): http://www.fcc.gov/oet/rfsafety.

•World Health Organization (WHO) International Commission on Non- Ionizing Radiation Protection (select Qs & As): http://www.who.int/emf

•United Kingdom, National Radiological Protection Board: http:// www.nrpb.org.uk

•Cellular Telecommunications Industry Association (CTIA): http:// www.wow-com.com

•U.S. Food and Drug Administration (FDA) Center for devices and Radiological Health: Http://www.fda.gov/cdhr/consumer/

1Muscat et al. Epidemiological Study of Cellular Telephone Use and Malignant Brain Tumors. In: State of the Science Symposium; 1999 June 20; Long Beach, California.

2Tice et al. Tests of mobile phone signals for activity in genotoxicity and other laboratory assays. In: Annual Meeting of the Environmental Mutagen Society; March 29, 1999, Washington, DC; and personal communication, unpublished results.

3Preece, AW, Iwi, G, Davies-Smith, A, Wesnes, K, Butler, S, Lim, E, and Varey, A. Effect of a 915- MHz simulated mobile phone signal on cognitive function in man. Int. J. Radiat. Biol., April 8, 1999.

4Hardell, L, Nasman, A, Pahlson, A, Hallquist, A and Mild, KH. Use of cellular telephones and the risk for brain tumors; a case-control study. Int. J. Oncol, 15: 113-116, 1999.

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Contents FCC/Industry Canada Notice Contents WAP Business Card Calculator Currency Converter Clock S46TOC.FM Safety Precautions Please observeSafety Information Antenna carePhone operation DrivingElectronic devices Airplanes Blasting areasEmergency Calls SAR Specific Absorption Rate SAR Specific Absorption Rate Overview of the phone Earpiece Soft keys Left side buttonsDisplay Symbols Transmission unencryptedWeekly view Monthly viewView SaveEdit DeleteBefore using your phone Getting StartedAfter turning on your phone p Remove battery cover Insert SIM cardSecurity/PIN Type of SIM cardInsert battery Charge batteryCharging Battery level indicator fully charged to empty Empty batteryTurn phone on Standby and talk timesService provider SIM problemsSetMenu Phone settings Menu Navigation If Message type, Validity period or Service center 144 Meeting at 08a h G123 Recipient Send to‡ = Return GAbc SMS OptionsMaking a Call DialingEnd call Accept callBusy signal Redial Call backPrompt Auto dialDuring a call Swap/Conference Z Phone number memoConference Swap/3-way CallCall menu Send Dtmf tonesInternational Calling International Dialing CodesPlacing International Calls §Menu§ Setup Security Babysitter BabysitterActivate Babysitter Turn Babysitter offAddress Book New entryView and edit entries Address book Last name Einstein First name AlbertCall an entry Search for an entryAddress book entry Store control code Extending numbersSynchronizing with Outlook §Save§SIM Phone Book SIM phone book menuTo dial an entry using the record number LocationRecord Number Edit record numberService numbers Protected phone numbers§OK§ Voice command for functions Voice ControlRecord voice controls Apply voice controls§Menu§ Office Voice control Voice dialing Or Voice command New recordNew sample PlayText Messaging Read MessagesReply menu Inbox/Outbox ArchiveInbox/Outbox/Archive Menus §Menu§ Messages Use SMS sample Delay, Appointment or Thanks Use SMS sampleCompose SMS 128Create new e-mail Text options menuEnter text using T9 Text Entry Tips T9 Text InputSelect T9 text input ¡ ’ = % ~T9 word suggestions Word correction140 At 08a we are eating F SpellMessage setup Setup Voice Mailbox§Menu§ Call Forward Call typeVoice Mailbox Cell Broadcast Z Cell broadcast messagesCell Broadcast/SIM Services Z SIM servicesCB languages Bitmap viewer Receiving graphicsStoring graphics Loading graphicsInternet access Start menu Example HomeBrowser menu MoreProfile settings ProfilesActivate profile CommerceEdit E D Select §Menu§ Surf & fun Internet ProfileOperating instructions Changing the homeEnter an Internet address URL BookmarksZCall Information Calls missedCalls received Calls dialed§Menu§ Call info Call timer DurationLast call All calls Last call Calls dialed Remain. unitsCall Forward Z All callsSpecific Call Forward Receiving faxStatus check Clear all§Select§ ClearVoice Memo Recording a memoNew record Stop/SaveUsing the soft keys Voice memo menu§Menu§ Office Voice Memo §Options§ Open menu New record SelectOrganizer CalendarAgenda Daily view Apr2002 W16 29 B30Appointments New appointmentAppointments menu Missed alarms Missed alarms menu§Menu§ Office Organizer Alarm clock §Menu§ Office Organizer Missed alarmsBusiness Card Business card menu§Menu§ Office Business card Tel./mobileCalculator61 §Menu§ Office CalculatorCalculator 123 4567 Calculator functionsCurrency Converter ConvertEnter exchange rate Currency converter menuClock 64Stopwatch/Countdown StopwatchCountdown Stopwatch menuGames65 Game instructionsKey control §Menu§ Surf & fun Games66Profiles ActivateProfiles menu §Menu§ ProfilesHeadset Aircraft mode Activate Aircraft mode§Menu§ Profiles … Select Aircraft mode §Options§ Open menu ProfilesReset FavoritesChange ApplyFast Access Keys Left soft keySet ChangeSpeed dialing keys Set-up/ChangeClear speed dialing key Apply§Menu§ Setup Device Keys Emergency call Quick menu selectionRinger setting Volume72Audio MelodiesAudio Compose melody Melody managerLoad SaveCall screening Silent alertKey tones Minute beepSetup75 §Menu§ Setup Device select a functionDevice LanguageSetup StatusKeys T9 input§Menu§ Setup Security Select a function SecurityCodes CodeOnly Call list p of the last Dialed numbers Phone code protectedCalls can be made only to a single PIN2 protectedConfiguration §Menu§ Setup Network select a functionNetwork Provider Select Options and Delete§Menu§ Setup Network ConfigurationUser settings Barrings§Menu§ Setup During a call Select a function Outgoing accessUser group Select group82Setup §Menu§ Setup Connectivity Select a functionSwitch Gprs off, Switch Gprs on ConnectivitySetup83 Gprs infoSerial Conn WAP browser84Setup AccessoriesHeadsetCar Kit Flex Memory Flex memory menuXTNDConnect Sync Software XTNDConnect Sync softwareFlexible memory Fax/Data Mode Using a PC Fax/data modeVoice/fax 88Send/Print Send viaPrint via IrDA IrDATroubleshooting89 Problem Possible causes Possible solutionsTroubleshooting Charge counter Damage Siemens Service 94Specifications Exposure to radiofrequency signalsDeclaration of conformity Specifications95 Technical data96Maintenance Maintenance tipsPhone ID Lost phoneAccessories Why the concern? What kinds of phones are in question?31.5.02 10-S46 FDA.fm i 37 Am Engl, A31008-H4600-A2-1-19 100 What is FDAs role concerning the safety of mobile phones? 101102 Where can I find additional information? 103Ten Driving Safety Tips 104105 Intellectual Property 106Intellectual Property Restrictions Index107 108Index Call records109 Phone identity numbers Imei110 SMS

GSM 900, GSM 1900, TDMA 1900, TDMA 800 specifications

Siemens is a renowned telecommunications equipment manufacturer known for its innovative solutions in mobile communication. Among its notable contributions are the TDMA 800, TDMA 1900, GSM 900, and GSM 1900 systems. These technologies have played a significant role in shaping mobile telephony, particularly during the late 20th century.

TDMA, or Time Division Multiple Access, is a digital transmission protocol that allows multiple users to share the same frequency channel by dividing the signal into time slots. The Siemens TDMA 800 operates in the 800 MHz frequency band, which is ideal for regional mobile communication. Its main features include improved call quality, greater capacity, and effective handover capabilities. This system was particularly popular in the United States, where it formed the backbone of early digital cellular networks.

On the other hand, the TDMA 1900 operates in the 1900 MHz band, catering to urban areas with higher population densities. This system further enhances voice clarity and offers faster data transmission speeds. Its key characteristics include support for features such as call waiting, caller ID, and enhanced voice privacy, making it suitable for modern telecommunication needs.

GSM, or Global System for Mobile Communications, is another critical technology developed by Siemens. The GSM 900 operates at 900 MHz and is one of the most widely adopted mobile standards globally. Its contributions to the communication landscape include superior frequency reuse, allowing for a greater number of simultaneous calls. The GSM 900 also supports various services beyond voice calls, including SMS (Short Message Service) and basic data transmission.

Meanwhile, GSM 1900, which functions in the 1900 MHz frequency band, is predominantly used in North America. This technology shares many features with GSM 900, but it accommodates a larger number of channels per frequency unit due to its higher frequency. The GSM 1900 system has been critical in facilitating the growth of mobile data services, providing a solid foundation for the evolution of mobile internet access.

Overall, Siemens' TDMA and GSM technologies have significantly influenced the development of mobile telecommunications. With features focused on capacity, flexibility, and quality, these systems established the groundwork for the advanced mobile networks we rely on today. Their legacy continues to be seen in the current generation of wireless technologies, highlighting the importance of innovation in the telecommunications industry.
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