Ericsson TH688 Mobile Phone for GSM DECT User’s Guide Second edition (November 1998) This manual is published by Ericsson Mobile Communications AB, without any warranty. Improvements and changes to this manual due to typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made by Ericsson Mobile Communications AB at any time and without notice. Such changes will, however, be incorporated into new editions of this manual. All rights reserved.
Congratulations... and thank you for buying the TH688, a product specially suited for heavy users of mobile phones on the move. The TH688 combines the benefits of a mobile phone with those of a cordless phone, giving you a flexibility and a convenience of being reached everywhere. Ericsson’s mobile phones are produced to meet high quality standards and are marked with the symbol. This manual introduces you to your mobile phone and shows you how to get the most out of your new product.
Table of Contents Congratulations... . . . . . . . . . . . ii CE . . . . . . . . . . . . . . . . . . . . ii Connecting Your TH 688 to a Home Base Station . . . . . . . . . . 4 Guidelines for Safe and Efficient Use v The Keypad and Display . . . . . . . 5 General . . . . . . . . . . . . . . . . . . v Exposure to Radio Frequency Energy . . v Efficient Phone Operation . . . . . . . . v Antenna Care and Replacement . . . . . v Driving . . . . . . . . . . . . . . . . . . v Electronic Devices . . . . . . . .
How to Select Answering Mode . . . How to Change the Greeting Text . . How to Display Your GSM Phone Number . . . . . . . . . . . . . . . . How to Change the Display Language How to Activate the Data Menus (GSM Only) . . . . . How to Reset the Phone . . . . . . . . 17 . 17 . 18 . 18 . 18 . 18 Protecting Your SIM Card and Phone . . . . . . . . . . . . . . . . . 19 The Card Lock . . . . . . The Phone Lock . . . . . . Call Barring (GSM Only) . The Keypad Lock . . . . . . . . . . . . . . . . . . . . . .
Guidelines for Safe and Efficient Use General Since its introduction in the mid 1980s the mobile phone is one of the most exciting and innovative products ever developed. Your phone can help you to stay in touch with your office, your home, emergency services and others. Your mobile phone is a radio transmitter and receiver. When the phone is turned on it receives and transmits radio frequency (RF) energy.
Electronic Devices Children Most modern electronic equipment, for example, equipment in hospitals and cars, is shielded from RF energy. However, RF energy from telephones may affect some electronic equipment. ● Turn off your phone in health care facilities when regulations posted in the areas instruct you to do so. ● Do not use your mobile phone near medical equipment without requesting permission.
The Dual Mode (GSM/DECT) Phone The TH 688 is a dual mode phone. This means that you can use it both as a GSM mobile phone and as a cordless phone in a DECT network. Provided you have made the required settings, it will use the DECT network whenever you are in reach of it, and the GSM network whenever you are out of reach of the DECT network. To be able to switch between a DECT network and a GSM network the phone must be set to Auto mode. This is done in the NETWORKS menu.
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The Phone Antenna Indicator light Beeper External antenna connector Ear piece Volume keys Display GSM/DECT Signal strength meter Battery Battery meter SIM card holder Microphone Keypad Handsfree connector Charging connector Microphone EN/LZT 126 1452 R2A 1
Preparing Your Phone for Use The SIM Card When you become a subscriber of a GSM network you obtain a SIM (Subscriber Identity Module) card. Your SIM card is supplied with a security code or PIN (Personal Identity Number) which you need in order to gain access to the phone and GSM network. The SIM card contains a computer chip that keeps track of your phone number, the services you have ordered from your GSM network operator and your phone book information.
How to Charge the Battery ● ● Connect the charger to the phone as illustrated in the figure. You need to press hard to fit the plug into the phone. The flash symbol on the charger must face upwards. Connect the charger to the mains. The phone will now start charging the battery.
Turning On the Phone ❶ Press and hold down the NO key until you hear a click. If you have inserted a SIM card in your phone, the display will prompt you to enter your PIN code. If not, the display will read ‘SIM card not present’. ❷ Enter your PIN code. The digits appear as * in the display. If you make a mistake while entering your PIN code erase the faulty digit by pressing the CLR key. ❸ Press YES. If you have entered your PIN code correctly, you will be welcomed by your phone.
The Keypad and Display Indicators in the Display The keys have other functions when you have accessed the phone’s menu system. See The Phone’s Menus, p.10. YES To confirm selections and settings and to answer an incoming call. ON/OFF To turn the phone on or off. NO To cancel selections or reject incoming calls. Left and right arrow keys To access and navigate the menu system. CLR (Clear) To erase digits from the display and mute the telephone. Number keys To enter the digits 0-9.
Preparing Your Phone for DECT Networks In order to benefit in the best way possible from the dual mode functions, make sure the following items have been programmed into your phone. This is usually done by a network administrator. If necessary, you can program it yourself. Programming the sequences below will make your telephone distinguish internal calls from external ones automatically when you are making calls.
Making and Receiving Calls in GSM mode The instructions in this chapter assume that you have turned on your phone and switched it to GSM mode, and that you are within range of a GSM network. Note! When you are abroad, you may use other networks, provided your GSM network has an agreement that allows you to do this. See Other Networks, p. 25. How to Make a Local Call ❶ Enter the area code and phone number. The digits are shown in the display. ● To erase a digit press CLR.
Making and Receiving Calls in DECT mode The instructions in this chapter assume that you have turned on your phone and switched it to DECT mode, and that you are within range of a DECT network. How to Make a Local Call ❶ Enter the external line prefix followed by the phone number you wish to dial. The digits are shown in the display. ● To erase a digit press CLR. ● To erase all digits, press and hold down CLR until all digits have been erased. ❷ Press YES to make the call.
During a Call How to Change the Volume You can use the volume keys to increase or decrease the ear piece volume. How to Mute the Microphone ❶ Press and hold down the CLR key. Mute is shown in the display. ❷ To resume conversation, release the CLR key. How to Use the Display as a Scratch Pad You can enter a phone number on the keypad during a call. When you end the call the number remains in the display. To call the number press YES. You can also store the number in the phone book. See The Phone Book, p.
The Phone’s Menus This chapter describes how to navigate the menu system.
The Menus The menus are arranged in a continuous loop. The right and left arrows allow you to access the menu system and then scroll from menu to menu. When you reach the desired menu, press YES to select it. Most of the menus have a number of functions. Scroll with the right and left arrows until you reach the desired function. Press YES to select it. Similarly a function has a number of different settings that you can reach by using the right and left arrows.
How to Check the First Characters If you enter more than 20 characters (0 – 9 and *, #, + or p) into the display, the first characters will disappear from the display. Instead, a left arrow is shown to the left in the second line, in front of the characters. Pressing the right arrow takes you to the CHECK menu, which lets you see the first characters you have entered. If you wish to enter a special character, press the right arrow. To return to the standby display, press the left arrow.
The Phone Book This chapter describes how you can create a personal phone book by storing phone numbers and accompanying names on the SIM card (card memory) and in the phone (flash memory). The PHONE BOOK menu also includes functions for recalling the last dialled numbers. If you have the CLI (Calling Line Identification) service you can also recall the last answered numbers. The Flash Memory The flash phone book can hold up to 1000 telephone numbers.
Overwrite Protection Using the Position This message appears if you try to store a phone number in a position which already contains a phone number. You can then do one of the following: ● Store the number in a different position . Press NO and then the new number of the position. ● Store the number in the selected position, thus erasing the old number. Press YES. ❶ Clear the display by pressing CLR. ❷ Press the left arrow followed by YES to select the PHONE BOOK menu.
How to Erase a Phone Number from the Card Memory ❶ Select Erase from the PHONE BOOK menu. ❷ Enter the position number and press YES, or scroll with the right and left arrows until you find the position and number you wish to erase. ❸ Press YES to erase the number. Another way of erasing a number is: ❶ Recall the number using Name recall or Position recall. ❷ Press and hold down CLR. The question ‘Erase?’ appears. ❸ Press YES to erase the number.
Personalizing Your Phone The SETTINGS menu includes a number of functions which let you adapt your phone to your personal needs in different situations. The functions in the SETTINGS menu are described in the order in which they appear when you scroll with the right and left arrows. ❷ Use the right and left arrows or the volume keys at the side of the phone to adjust the volume. During a call you can use the volume keys at the side of the phone to adjust the volume.
How to Select Key Lock ❶ Select Keylock from the SETTINGS menu. ❷ You can choose manual or automatic keypad lock. In automatic mode the keypad is locked 25 seconds after the last key has been pressed. In manual mode you have to select the KEYLOCK menu to activate the lock. See Protecting Your SIM card and Phone, p. 19. How to Select Key Sound ❶ Select Key sound from the SETTINGS menu. ❷ Choose whether clicks, tones or nothing (silent) will be heard when you press the keys.
The Greeting function also lets you turn the greeting text off. How to Display Your GSM Phone Number SETTINGS If your phone number cannot be retrieved from your SIM card, you can enter it yourself. ~ Own line ❶ Select Own line from the SETTINGS menu. ❷ Scroll to GSM number and press YES. Phone no appears. ❸ Press YES again. Enter new phone number appears. ❹ Enter the number and press YES. If your SIM card allows it, you can also enter your fax and/or data number.
Protecting Your SIM Card and Phone The Card Lock Your SIM card is protected by a card lock which is unlocked with a PIN code. The PIN code is obtained when you purchase your SIM card. Each time you turn on your phone, the PIN code has to be entered to unlock the card. If the PIN code is entered incorrectly three times in succession, the SIM card will be blocked. This is indicated by the message Card blocked Unblock? Should this happen, see Problems You Can Solve, p. 44.
the security code until the original SIM card or a different SIM card is inserted. How to Change the Security Code ● Select Phone lock from the ACCESS menu and follow the same procedure as when changing the PIN code. How to Lock/Unlock the Phone ❶ Select Phone lock from the ACCESS menu. The current setting Full lock, Autolock or Unlocked is shown between brackets. ❷ Select the required setting. ❸ Enter the security code and press YES. PHONE LOCK is displayed together with the new setting.
The keypad will remain locked until you: ● Answer an incoming call. ● Replace the battery. ● Unlock the keypad. How to Lock the Keypad ❶ Select Keylock from the SETTINGS menu. ❷ Select Automatic or Manual keylock. The automatic keylock locks the keypad 25 seconds after the last key has been pressed. ❸ Press YES. How to Unlock the Keypad ● Press the left arrow followed by YES to unlock the keypad.
Setting the Time, Date and Alarm The CLOCK menu lets you set the time and date. It also lets you activate the alarm function. The Clock The time is shown continuously at the bottom of the display when the phone is in standby mode. The hours and minutes can be presented in either the 24-hour format or the 12-hour (a.m./p.m.) format. How to Change the Time Format ❶ Select Clock mode from the CLOCK menu. ❷ Select the required clock mode and press YES.
How to Turn the Alarm Off ❶ Press any key to turn the alarm off when it sounds. ❷ Press YES if you do not want the alarm to be repeated. How to Turn the Alarm Function Off ❶ Select Set alarm from the CLOCK menu. ❷ Scroll to the Off option by pressing the right and left arrows. Press YES.
Diverting Incoming Calls If you want to make certain that your incoming calls are taken care of when you are unable to answer them, you can use the Call Divert service of the cellular network to divert them to another phone number. The Call Divert service lets you: ● Divert calls if you already are engaged in a call. ● Divert calls that you do not answer in 30 seconds. ● Divert calls when you have turned off your phone or you are unreachable.
Other Networks When you turn on the phone, it normally selects its home network. If the home network is not within range, for example when you are abroad, you may use another network, provided your home network has an agreement that allows you to use the network. This is called roaming. The NETWORKS menu includes a number of functions which you can use to determine how the phone searches for a network. You may also select a network yourself from those within range.
If your home operator and an operator of a forbidden network come to an agreement that allows you to use the forbidden network, you can select this network even though the message Forbidden is displayed. List of Networks It is possible to create a list which defines the order of preference in which the phone will select a network during automatic network selection when the home network is not within range. The numbers of networks that can be stored in the list depends on your SIM card.
❶ From the NETWORKS menu, select Edit list and press YES. NET1 (the name of your first DECT network) appears. ❷ Press YES. Move appears in the bottom row of the display. ❸ Scroll to Erase using the right arrow key. ❹ Press YES. Confirm by pressing YES a second time. Your network is removed. ❺ Press CLR to return to standby. Rename ❶ From the NETWORKS menu, select Edit list and press YES. NET1 (the name of your first DECT network) appears. ❷ Press YES. Move appears in the bottom row of the display.
DTMF Tones You can use your phone to send DTMF (Dual Tone Multi Frequency) tones. This feature can be used for a variety of purposes, such as banking by phone or controlling an answering machine. ● Automatic DTMF Pre-programmed DTMF Signalling You can send DTMF tones during a call. You can send the characters 0 - 9, *, and # as DTMF tones by pressing the corresponding keys.
Who Is Calling? The Calling Line Identification (CLI) service allows you to see the caller’s phone number in the display, giving you a chance to identify the caller. This service may not be available on all networks and may require a separate subscription. Incoming Calls When an incoming call is received, the caller’s phone number appears in the display. If the caller’s name and number is stored in the phone book, the name of the caller will be displayed too.
❹ Press YES to make the call. A special code is inserted in front of the phone number. Showing Your Phone Number (GSM Only) If you subscribe to withhold your phone number when making calls, you can use the Send Id function in the SPECIAL FUNCTIONS menu to send your phone number on a particular call. Note! This function is operator dependent. How to Show Your Phone Number ❶ Enter the phone number you wish to call. ❷ Press the right arrow, followed by YES. The SPECIAL FUNCTIONS menu appears.
Handling More than One Call (GSM only) The phone allows you to handle more than one call simultaneously. This means that you may hold a call in progress and make or answer a second call and then switch between the two calls. Note! For information on how to handle more than one call in a DECT network, please consult your DECT network operator. How to Activate the Call Waiting Service To be able to receive a second call, you must activate the Call Waiting service. ❶ Select Call Waiting from the ACCESS menu.
Receiving a Third Call Provided your Call Waiting function is activated, you may receive a third call when you are engaged in one call and have a second call on hold. You will hear a tone in the ear piece and the message Call Wait appears in the display. How to Accept the Call Only one call can be in hold at a time. If you wish to accept the third call you must end one of the existing calls or both. If you end one of the existing calls: ● Press YES to accept the waiting call.
Conference Calls (GSM only) The Conference Call service allows you to have a joint conversation with up to five people. You may put an individual or a group of conference members on hold while you add other people to the conference call. You may also put conference members on hold while you talk to someone privately. The Conference Call service may not be available on all GSM networks. Note! For information on how to handle conference calls in a DECT network, please consult your DECT network operator.
The Answering Service (GSM only) ❷ Scroll to New number and press YES. ❸ Enter the new number and press YES. The answering service of your network lets your callers leave a voice message when you cannot or do not wish to answer all calls. This service may not be available on all networks and may require a separate subscription. How to Turn off the Voice Mail Note! For information on how to handle Voice mail in a DECT network, please consult your DECT network operator.
Sending and Receiving Text Messages (GSM only) The Short Message Service (SMS) allows you to send and receive text messages. A message may contain up to 160 characters. Text messages can be received when the phone is in standby mode, when you are engaged in a call or when incoming calls are diverted to another phone number. If the phone is turned off when somebody sends a message to you, a message will be displayed when you turn on the phone. Note! This function may not be available in all networks.
How to Erase a Message ❶ Press NO if you do not want to reply to a message. The message Erase? appears. ❷ Press YES to erase the message from the Messages memory. You will now automatically come to the next message in the message list. Note! You can press CLR anywhere within the menu to erase a message. When the message Erase? appears, press YES. How to Store the Message Press NO if you do not wish to erase the message. The message will remain in the Messages memory. The message Store? appears.
❹ Scroll to the desired repeat length and press YES. How to Change a Message Type The phone is prepared for sending other types of messages. Your Service Centre of your network may offer the facility to convert a text message into a format (fax, telex, voice, etc.) that suits the receiver of the message. Consult your Service Centre for further information about the formats you can use. ❶ Select Send messages from the MAIL menu. ❷ Scroll to Options and press YES.
Area Information (GSM only) The ordinary Short Message Service can be defined as a personal service with messages specifically and exclusively directed to you. The Area Information (AI) is another type of text message which is sent to all subscribers in a certain cell of a network at the same time. The information may be a local road report or a local taxi phone number. Note! This feature may not be available on all networks. How to Turn On the Area Information ❶ Select Area info from the MAIL menu.
❶ Select Area info from the MAIL menu. ❷ Press YES. ❸ Scroll to Edit list and press YES. The digits to the left indicate the position in the list. You can scroll forward and backward through the list with the right and left arrows. ❹ To insert a code, scroll to the first empty location by using the right arrow. Press YES. ❺ Enter the new code. (You only need to enter 40 for 040, since the phone will add the leading zero automatically.) How to Erase or Replace a Code ❶ Select Area info from the MAIL menu.
The Call Time During an outgoing call, the call time is shown in the display. With the Call info function in the SETTINGS menu you can have the time displayed for all calls, both incoming and outgoing. How to Check Time of Last Call You can check the time of the last incoming (or outgoing) call with the Last call option in the INFO menu. ● Select the INFO menu. Depending on the setting in the Call info function in the SETTINGS menu, you can check: ● The elapsed time of the last outgoing call.
Fixed Dialling (GSM only) Note! This function is SIM card dependent. The Fixed Dialling function allows calls to be made only to fixed numbers stored on the SIM card. If an attempt is made to call other numbers, the message Number not permitted appears in the display. It is possible to store partial numbers, for example an area code or an area code followed by the first digits common to several numbers. Storing 0123456 allows calls to be made to 012345600 and 012345625.
Data Menus (GSM Only) The phone can be used with the Ericsson Mobile Office kit. This links the phone to a desktop or laptop PC, allowing you to use data communication and fax services from the PC. The Data menus function in the SETTINGS menu lets you activate the NEXT CALL TYPE menu. SETTING ~Data menus (On) When Data menus is On, the NEXT CALL TYPE menu appears after the INFO menu. The Next call type function must be activated if you have the same number for all types of calls to your mobile phone.
Composing Your Own Ring Signal The Phone’s Note System Your phone has the capability of handling a range of tones spreading over two octaves. See the table below to understand the relationship between the notes and the numeric keys on the telephone. Press this: 1–9 How to Enter a Simple Melody The simple melody is Do-Re-Mi. This song corresponds to the C, D and E notes on a music scale. ❶ Select EditMelody from the SETTINGS menu. ❷ Clear the display by pressing CLR. ❸ Press 1.
Problems You Can Solve This chapter lists some simple things you should check before calling for service personnel. This could save you the cost of unnecessary service. The Phone Does Not Come On ❸ Enter a new PIN code and press YES. You can of course also enter the PIN code you used previously. If you have entered both the unblocking key and the PIN code correctly, the message New PIN appears. The battery may have to be charged or replaced.
Warranty If your Ericsson product requires warranty service you should return the product to the dealer/retailer from whom it was purchased. If your Ericsson product requires warranty service when you are abroad, the service is available in those countries listed on your International Warranty Certificate. In the event of difficulty, details of our authorized service network are available from your local Ericsson subsidiary.
Index A Call Alarm How to set How to turn off 22 22 23 Answered calls How to erase How to review Answered calls memory Answering mode How to select 29 29 15 17 Answering service How to call In DECT networks 34 34 Area information How to receive How to turn off How to turn on Message list Message types 39 38 38 38 38 Area information code How to erase How to insert How to replace Autolock How to cancel Call barring Call bars How to activate How to cancel How to activate How to cancel 19 Call
How to erase phone numbers 15 Display 4 Display language How to use as scratch pad Indicators Time 4 9 5 4 Display language How to change 18 Display light How to change 17 Divert calls DTMF 24 Automatic How to send code during call How to use several pauses Pause function Pre-programmed signalling DTMF tones Dual mode Preparing Your Phone for Select mode 28 28 28 28 28 28 6 vii E G How to enter Greeting text How to change How to change Emergency Call External Line Prefix How to connect
How to change How to enter Wrong Network search How to start automatic 25 Networks List of Other Note system 26 25 43 O 6 P How to change Wrong How to reset PBX prefix Phone How to lock How to turn off How to turn on How to unlock Phone book How to edit International numbers Making calls using the Phone lock Phone number How to display How to erase - alt. 1 How to hide How to recall How to show How to store - alt.
