Switch on, off / PIN, Aircraft security, OK Cancel

12		Switch on, off / PIN
12

Emergency number (SOS)

By pressing the soft key SOS you can make an emergency call over the network without a SIM card and without entering a PIN (not possible in all countries).

This must only be used in real emergencies.

Network connection

tStrength of the incoming signal.

UA weak signal reduces the call quality and may lead to loss of connection. In this case, change your location.

Do not interfere with the antenna at the top of the phone unnecessarily during operation, otherwise the quality of the connection may be impaired.

Metal parts in the vicinity of the antenna can impair the reception and transmission quality.

If you are outside your “home network“, your phone automatically selects another GSM network (see also p. 67).

SIM services

pThis symbol is displayed if your SIM card supports special applications such as banking.

Aircraft security

If you have deactivated PIN control (see p. 66), you must provide addi- tional confirmation before the phone can be switched on.

This is intended to prevent you from switching on the phone inadvertent- ly, for example while you are in an aircraft.

SHold down.

Aircraft security

Please confirm to

activate

OK Cancel

OK Select:

The phone is switched on. Cancel Select or do nothing:

The activation procedure is aborted; the phone is not switched on.

SL45i, SL42 specifications

The Siemens SL42 and SL45i are notable mobile phones that made their mark in the early 2000s, particularly appealing to users looking for a combination of functionality and stylistic appeal in their devices. Both models share many of the same features, with subtle differences that cater to various user preferences.

The SL42 was launched as part of Siemens’ mobile phone lineup, designed to be compact, lightweight, and easy to use. One of its standout features was its clamshell design which allowed for a more pocket-friendly form factor. The SL42 featured a monochrome display with a resolution sufficient for basic texting and calling purposes. The user interface was straightforward, making it ideal for those who preferred simplicity over complexity.

The SL45i, an advanced iteration, brought additional features that enhanced its usability. It introduced a richer, more vibrant color display capable of supporting a variety of graphic elements, making it more appealing to users who enjoyed a more engaging interface. One of the key technologies integrated into the SL45i was the support for Java applications, enabling users to download and install various games and utilities, thereby expanding the phone's functionality beyond standard calling and texting.

Both models were equipped with a built-in FM radio, providing an entertaining option for users on the go. Additionally, the SL45i had a more advanced camera feature than the SL42, allowing for basic photography, which was quite innovative at the time.

Battery life was another highlight of both the SL42 and SL45i. Siemens focused on ensuring that users could rely on their devices for extended periods without frequent recharging. This was especially appreciated by users who traveled or spent long hours away from home or office settings.

The build quality of these phones was robust, with a design that could withstand daily wear and tear. They were marketed towards a demographic that valued reliability and practicality without sacrificing style.

In conclusion, the Siemens SL42 and SL45i represented an important phase in mobile technology, combining essential features like calling, texting, and limited multimedia functions into mobile phones that were both functional and aesthetically pleasing. Their contribution to mobile technology helped pave the way for future innovations in the industry.