Ericsson GH198 user manual Sending Dtmf Signals, Sending a Code

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Sending DTMF Signals

You can use keys 0 -- 9, and # to send DTMF (Dual

Tone Multi Frequency) signals*

to access special services,

for example ‘‘banking by phone’’.

DTMF signals cannot be sent unless the ‘‘DTMF’’ option in Special Function No 1. Key Clicks, Silent Keypad or DTMF Signals is enabled.

If required, select the ‘‘DTMF’’ option. This can be done both when the phone is in standby mode and when a call is progress. Refer to the chapter Special Functions.

1.Call the desired number.

2.When the call has been connected, pressing keys

0 -- 9, and # will cause the corresponding DTMF signals*to be sent.

The characters entered remain in the display. To avoid that the characters are stored in the scratch pad, erase them using the C (CLEAR) key before ending the call.

DTMF Signalling

Sending a Code

If you need to send a code (a sequen-ce of digits), for example your personal access code, it could sometimes be advantageous to use the following method.

A code cannot be sent unless the ‘‘DTMF’’ option in Special Function No. 1 is disabled.

If required, select the ‘‘CLICK ON’’ or ‘‘SILENT’’ option. This can be done both when the phone is in standby mode and when a call is in progress. Refer to the chapter Special Functions.

1.Call the desired number.

2.When the call has been connected, enter the code you wish to send. The code can be any combination of the digits 0 -- 9, and the characters

and #.

*If you make a mistake, while entering the code, you can correct it with the C (CLEAR) key.

You may enter a maximum of 36 characters. However, if you enter digits only, a maximum of 20 can be entered.

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Contents Ericsson Ericsson Mobile Communications AB Innovatron PatentsSafety and Precautions 1208/4/P/502763Contents Special Functions Introduction About this manualRecharg Overview Key functions SIM -- Subscriber Identity Module PIN -- Personal Identification NumberElectronic lock Observe the followingPIN check enabled Making the Phone Ready for UseTurning the Phone On SIM not insertedServ indicator flashes Message ‘‘NO NETW’’ No Net- work is displayedIf a number contains more than 10 digits Entering a Phone NumberMaking a Call See also the chapter Dialling Memory and Scratch Pad Ending the callIf a call is unsuccesful Receiving a Call Call Time MeterVolume Control Microphone MuteScratch Pad Key LockStatus Indicators DisplayAlphanumeric Field Numeric FieldAlphabetic Mode CallFunction UseKeypad Recall Store Clear MODE/MUTEPower Volume controlAlphabetic mode letter mode EndNumeric keys Chapter Basic OperationMute -- Privacy key Audible Signals Ringing SignalIllumination Star and HashVisual Signals Alarm SignalError Signal Confirmation ClickStoring Numbers Storing a Number and NameMemory Protection Memory FullErasing a Stored Number and Name Numeric and Alphabetic Mode Recalling a Number Using Numeric ModeScrolling through the Memory Alternative Method for Recalling a NumberRecalling a Number Using Alphabetic Mode Speed CallingAppending Digits to a Recalled Number Replacing the Last Digits of a Recalled NumberDialling Memory Scratch PadRecalling the Last Six Numbers Called Storing a NumberRecalling a Number Sending Dtmf Signals Sending a CodePre-programmed Dtmf Signalling To send the codeText in the display Special Function ‘‘RETRY OFF’’Accessing a Special Function Using MethodChanging a Setting Storing a New SettingUsing a Combination of the Two Methods Leaving a Special FunctionRinging Signal Volume Key Clicks, Silent Keypad or Dtmf SignalsCall Forwarding ###Cancelling ALL call forwarding services ‘‘IF BUSY’’ ‘‘NO REPLY’’ ‘‘UNREACHABL’’Call Barring ‘‘CANCEL ALL’’ ‘‘CHG PASSW’’‘‘ACTIVATE’’ appears ‘‘BARRING ON’’ orAutomatic Re-try Changing your password‘‘CHANGE PASSWORD’’ -- -- -- ‘‘CHG PASSW’’ is displayed Back Light Current NetworkAvailable Networks ‘‘LIGHT AUTO’’ or ‘‘LIGHT OFF’’ or ‘‘LIGHT ON’’Network Selection Mode Automatic Network SelectionDeleting a network List of ‘‘Preferred’’ NetworksReviewing the list of networks Minute Minder Last Call TimeTotal Call Time Unblocking Procedure PINDigitSIM Unblocking Key Enabling/Disabling the PIN CheckAny Key Language SelectionArea Code ‘‘ANYKEY OFF’’ or ‘‘ANYKEY ON’’, is displayedBattery Discharge Battery VoltageEntering and storing the area code Turning the Area Code facility on or OFFPhone Lock Full lockAuto lock Changing your security codeEnabling the electronic lock Disabling the lock or changing the lock levelStandard battery Slimline battery High-capacity Battery BatteriesCare and Maintenance Low battery alarm during a callInserting and Removing a Standard or Slimline Battery Removal InsertionInserting and Removing a High-Capacity Battery Slide indicator RechargingConnecting the basic charger Basic ChargerRecharging a standard battery Hands-Free Vehicle Kit Portable Hands Free Vehicle Power Adaptor and Rapid Charger Recharging a battery and powering the phone Connecting the multi charger Multi ChargerRecharging a battery using the horizontal compartment Recharging a battery using the vertical compartmentObserve the following Serv Indicator Flashes Received Signal Is WeakFlashing Red Indicator Light -- Alarm Signal Sounds Phone Does Not Come OnMessages Steady Red Indicator LightChanging Your Password ‘‘SIM SECUR’’ or Password changing was successful‘‘UPDATE ERROR’’ ‘‘SIM UPDATE’’ or Inserting the SIM

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.
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