Indicates a strong signal. Indicates a weak signal.

31.5.02 06-S46 Body.fm i 37 Eagle Am Engl, A31008-H4500-A1-4-7619

Getting Started

15

 

Phone settings

Network connection

The phone may be operated in either TDMA or GSM networks. When your phone is turned on, it automatically searches for the currently available network (p. 80).

Signal strength

After the network search has started, your phone’s signal strength indicator is shown in the upper left

corner of the display screen.

M

L

Display contrast

The display contrast may be adjusted (p. 75).

Your phone number

To keep track of your mobile phone number, it is recommended that you

enter your new phone number in the SIM phone book’s <Own numbers>

folder for easy reference (p. 30).

Time/Date

After you have turned your phone on the first time, you will want to set the correct time and date (p. 63).

The SIM (Subscriber Identity Module) card contains a phone book which is available in addition to your phone’s address book. The entries in the SIM phone book and the address book are managed separately; however, data may be exchanged between the two.

Import SIM card phone book

When a SIM card is inserted for the first time, or when it is changed, the phone book on the SIM card may be imported to your phone’s address book.

In the SIM card phone book, each entry contains only one name and one phone number; therefore, some data fields in the phone’s expanded address book will be left empty. Your phone’s address book entries may be edited after the SIM phone book data has been imported (p. 26).

Do not interrupt the import process and do not accept calls during this time. Follow the instructions on the display.

To copy the data from the SIM

phone book to your phone's address book later, use the Copy into 9

function of the SIM phone book menu (p. 29).

Page 20
Image 20
Siemens TDMA 1900, GSM 900, GSM 1900, TDMA 800 manual Phone settings

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.