CLEAR

1.If pressed momentarily, it erases the last digit or letter entered. Can be pressed repeatedly to erase several characters.

2.If held down, it erases all digits, for example a phone number, from the display.

3.Exits from the Special Functions.

This key has two different functions: MODE and MUTE.

1.MODE

Press M momentarily. The text ‘‘FCN’’ (Function) and the FCN indicator come on in the display. The following functions can be obtained if a second key is pressed within 10 seconds:

Press M, followed by RCL (RECALL), to display the first digits of a phone number that includes more than 10 digits.

Press M, followed by Send, to send the digits in the display as DTMF signals when a call is in progress. Refer to the chapter DTMF Signalling.

Press M, followed by , to use the Inter-

national Access function.*

Refer to the

chapter Basic Operation.

Press M, followed by # (Hash), to lock/un- lock the keypad.

Press M twice, or M followed by (Up), to select the first Special Function. Fur- ther pressing M or (Up) repeatedly, will scroll through all the Special Func- tions.

To select the last Special Function, press M followed by (Down). Refer to the chapter Special Functions.

A Special Function can also be selected by pressing M, followed by the number (one or two digits) of the Special Func- tion. Refer to the chapter Special Func- tions.

2.MUTE -- Privacy key

Hold down M to mute the microphone during a conversation. If the phone is used with hands free equipment, the separate microphone will be muted.

Numeric keys

Used to enter phone numbers to be called, or stored in memory.

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Ericsson GH198 user manual Chapter Basic Operation, Mute -- Privacy key, Numeric keys

GH198 specifications

The Ericsson GH198 is a notable mobile phone that emerged in the late 1990s, encapsulating the early era of cellular technology. This device, popular in its time, encompassed several features and characteristics that appealed to users seeking reliable communication solutions.

One of the main features of the Ericsson GH198 was its compact design, which allowed for easy handling and portability. Weighing in at a mere 300 grams, it was lightweight compared to many of its contemporaries. The device boasted a monochrome LCD display, which, while simpler than today's standards, offered clear and readable text for phone numbers and messages. The display was complemented by a user-friendly interface, allowing for seamless navigation through features.

The GH198 operated on the GSM (Global System for Mobile Communications) standard, a significant technology in mobile telephony that laid the groundwork for modern mobile networks. GSM technology enabled the GH198 to provide enhanced voice quality, reliability, and better coverage than previous analog systems. The phone supported various frequency bands, enhancing its usability across diverse regions.

One of the standout characteristics of the Ericsson GH198 was its extended battery life. The device utilized a NiMH battery, which provided talk time of up to 12 hours and standby time of up to several days. Users appreciated this longevity, as it reduced the frequency of charging interruptions, allowing for prolonged connectivity on the go.

In terms of functionality, the GH198 offered essential features such as SMS (Short Message Service) capabilities, enabling users to send and receive text messages—a feature that was gaining popularity during its release. Additionally, the phone included a phonebook memory capacity for storing hundreds of contacts, making it convenient for users to maintain their personal and professional connections.

The Ericsson GH198 also supported functionalities such as call waiting and caller ID, enhancing the overall user experience. Its simple yet effective design made it ideal for both business professionals and everyday users looking for straightforward communication tools.

In summary, the Ericsson GH198 embodied the pinnacle of mobile technology in its era. With its compact design, reliable GSM connection, impressive battery life, and essential communication features, it played a significant role in the evolution of mobile phones, paving the way for future innovations in the telecommunications industry.