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

38

Text Messaging

 

 

 

Text Entry Tips

T9® Text Input

When entering text for address book listings, SIM phone book entries, e- mails, SMS messages

or for any other application, please keep in mind the following helpful hints:

Press * before entering text to toggle between UPPERCASE and lowercase letters. Press twice to toggle between letters and digits.

Press 1to end a word and add a blank space.

Press 0to end a word and add a period. It also acts as a wildcard character for an apostrophe or hyphen in a word. For example, §Provider.s§ = Provider’s.

Press to move the cursor to the right. Ends a word.

Press #to temporarily deactivate T9. Press once again to reactivate T9.

Special characters

Press the key repeatedly until the letter is displayed. To write special characters after numbers (for example, 5£), press *first to switch to letter mode.

 

 

 

 

 

 

 

1

Blank 1

£

$

¥

¤

0

.

,

?

!

0

+

- : ¿

¡ “ ’ ; _

** / ( ) < = > % ~

# #

@ \

& § Γ ∆ Θ Λ

Ξ

Π Σ

Φ Ψ Ω

T9 Text Input determines likely word matches from individual key entries by making comparisons with an extensive dictionary.

Select T9 text input

To select T9 text input for message composition:

§OK§ Select soft key to open text options menu while in message composition screen.

Scroll to select T9 input, then select T9 preferred to

set T9 as default. (You may also select the language you wish to

use for composition by selecting T9 language and scrolling to the language.)

- Press to return to message composition.

Enter text using T9

Press the keys once where the relevant letters are located. For

example, to enter the word “hotel”:

46835:

hotel

T9 even converts language-specific special characters (such as ä, à). Simply compose the message using the respective standard character, for example, A instead of Ä.

If the word that T9 suggest is not what you intended, see “T9 word suggestions,” page 39.

Page 43
Image 43
Siemens TDMA 800, GSM 900, GSM 1900 Text Entry Tips T9 Text Input, Select T9 text input, Enter text using T9, ¡ ’ = % ~, @

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.