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

80

 

 

Setup

 

 

 

 

 

 

 

 

 

 

 

§Menu§

Setup

Network

Barrings

© Z

 

 

Configuration

Locking restricts the use of your SIM

 

 

User settings

 

 

card (not supported by all service

User settings

 

 

providers). You need a 4-digit

Your phone can be operated in

password that your service provider

supplies you. You may need to be

TDMA networks as well as in

registered separately for each lock.

GSM networks. You can set one of

Outgoing calls

 

these operational modes as

 

standard or switch between the two

All outgoing calls (except 911 and

modes automatically.

112 emergency numbers) are

When turning on the phone for

barred.

 

the first time, automatic selection

Outgoing international

 

is active.

 

 

 

 

 

Only domestic calls can be made.

Automatic selection

 

 

Outgoing international except

When automatic selection is active,

home country

 

the most recently used network is

 

searched and the phone determines

International calls are not permitted.

whether a SIM card is inserted.

However, you can make calls to your

Depending on the status, the

home country when abroad.

All incoming calls

 

currently available network is

 

displayed for selection.

The phone is barred for all incoming

GSM Only

 

 

calls. (Forwarding all calls to the

Only GSM networks will be used

mailbox has a similar effect.)

when a SIM card is inserted.

When roaming

 

TDMA Only

 

You do not receive calls when you

Only TDMA networks will be used

are outside your home network. This

when a SIM card is inserted.

means that no charges are incurred

for incoming calls when roaming.

Status check

Displays information on your phone’s lock status: lock is set, lock is not set or status is unknown (for example, with a new SIM card).

Clear all

All locks are cleared.

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Siemens TDMA 800, GSM 900, GSM 1900, TDMA 1900 manual Barrings, §Menu§ Setup Network, Configuration, User 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.