Ericsson GH688 Mobile Phone for the GSM Network User’s Manual
Second edition (June 1997) 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. © Ericsson Mobile Communications AB, 1996.
Congratulations... and thank you for buying the GH688, a product specially suited the heavy user of mobile phones. The GH688 offers advanced data communication functions, up to six hours of uninterrupted talk time and comes with an extra large display. 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 Guidelines for Safe and Efficient Use . . . . . . . . . . . . . . iv The Phone . . . . . . . . . . . . . . . . 1 Preparing Your Phone for Use . . . . 2 The SIM Card . . . . . . . . . . . . . 2 The Battery . . . . . . . . . . . 2 The Low Battery Alarm . . . . . 4 Turning On the Phone . . . . . . . . . 5 When No Network is Displayed 5 The Display Language . . . . . . 5 The Time . . . . . . . . . . . . 5 How to Turn off the Phone . . . 5 The Keypad and Display . . . . . . . . 6 Key Functions.
Setting the Time, Date and Alarm . . The Clock . . . . . . . . . . . The Date . . . . . . . . . . . . The Alarm . . . . . . . . . . . Diverting Incoming Calls. . . . . . . How to Activate a Call Divert . How to Check the Status of a Call Divert . . . . . How to Cancel a Call Divert . . Other Networks . . . . . . . . . . . . How to Select Search Mode . . How to Select a Network . . . Forbidden Networks . . . . . List of Networks . . . . . . . . DTMF Tones . . . . . . . . . . . . . Automatic DTMF . . . . . .
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.
• Do not use an antenna designed for any other type of portable telephone than the telephone you have purchased. Unauthorized antennas, modifications, or attachments could damage the phone and may violate the appropriate regulations. Driving Check the laws and regulations on the use of telephones in the areas where you drive. If you are going to use your mobile phone while driving: • Give full attention to driving. • Use hands-free operation, if available.
Children • Do not allow children to play with your phone since they could hurt themselves or others or accidentally damage the phone. Blasting Areas • Turn off your mobile phone when in a “blasting area” or in areas posted “turn off two-way radio” to avoid interfering with blasting operations. Construction crews often use remote control RF devices to set off explosives. Potentially Explosive Atmospheres • Turn off your phone when in any area with a potentially explosive atmosphere.
The Phone Antenna Indicator light Beeper External antenna connector Volume keys Display Signal strength meter Ear piece Battery Battery meter SIM card holder Keypad Charging connector Handsfree connector Microphone EN/LZT 126 1353 R1B 1
Preparing Your Phone for Use The SIM Card When you become a subscriber of a 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 network. The SIM card contains a computer chip that keeps track of your phone number, the services you have ordered from your network operator and your phone book information.
How to Attach the Battery to the Phone How to Charge the Battery • Connect the charger to 1. Place the battery on top of the phone. 2. Press until you hear a click. How to Remove the Battery Make sure that the phone is turned off before removing the battery. 1. Press the locking catch on the bottom of the battery. 2. Lift the battery up and away from the phone. EN/LZT 126 1353 R1B the phone as illustrated in the figure. You need to press hard to fit the plug into the phone.
The Low Battery Alarm As a reminder that the battery soon needs recharging or replacing, an alarm signal (a long beep) sounds and the message Battery low appears for ten seconds in the display. 4 In addition, the indicator light on top of the phone starts blinking red. If the phone is left on, the low battery alarm will be repeated several times and, finally, the phone will turn itself off when the battery is no longer able to power it satisfactorily. It is not possible to turn the phone on again.
Turning On the Phone 1. Press and hold down the NO key until you hear a click. The display will prompt you to enter your PIN code. 2. 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. 3. Press YES. If you have entered your PIN code correctly, you will be welcomed by your phone. The phone will then search for a network. When a network is found, the phone beeps three times.
The Keypad and Display Key Functions The keys have other functions when you have accessed the phone’s menu system. See The Phone’s Menus, p.12. 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. 6 Numeric keys To enter the digits 0-9.
Indicators in the Display 4 2 7 8 Signal strength meter The received signal strength displayed as bars. The more bars, the stronger signal. K Keypad locked The keypad on your phone is locked. B Alarm activated The alarm function is activated. Battery meter The current battery strength. The fuller the icon, the more power there is remaining. EN/LZT 126 1353 R1B l Diversion arrow All incoming calls are diverted to another number. S Silent ring signal The ring signal is turned off.
Making and Receiving Calls The instructions in this chapter assume that you have turned on your phone and that you are within range of a network. It is possible to check the duration of the call later on. See The Call Time/Call Cost, p. 48. Note! When you are abroad, you may use other networks, provided your home network has an agreement that allows you to do this. See Other Networks, p. 31.
How to Make an Emergency Call • Enter 112 (the international emergency number) and press YES. The display shows Emergency. Some operators may require that a SIM card has been inserted into the phone, and in some cases that the PIN code has been entered as well. How to Receive a Call When you receive a call the phone will ring and the indicator light on top of the phone rapidly blinks green. The display will show Answer?. 1. Press YES to answer the call. EN/LZT 126 1353 R1B 2.
How to Use the Display as a Scratch Pad During a Call How to Change the Volume You can use the volume keys to increase or decrease the ear piece volume. 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. 14.
The Phone’s Menus This chapter describes how to navigate the menu system. Standby display Phone book Mail Name recall *Voice mail Position recall *Read Store messages Edit Card messages Erase Send messages Erase all Missed calls from phone Set VoiceM Copy all Area info Copy Answered calls Dialled numbers Keylock On? Clock Calculator Set alarm Set clock Set date Clock mode Date mode * If Set VoiceM and Area info have been activated.
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.
1 Space - ? ! , . : “ ' ( ) 1 2 ABCÅÄÆàÇ2Γ 3 DEFèÉ3∆n 4 GHIì4 5 JKL5Λ 6 MNOÑÖØò6 7 PQRSß7ΠΣ 8 TUVÜù8 9 WXYZ9 0 0+&@/$%£ΘΞΨΩ # #* Note! To enter a digit, you can also press and hold down the numeric key. How to Enter Lower-Case Letters • Enter the letter, for example an ‘A’, and then press *. An ‘a’ appears. Lower-case letters will now appear until you press * again.
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 (phone 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 Card Memory The memory positions in the card memory are numbered from 1 onwards.
• To erase a faulty letter press CLR. • Use the right and left arrows to insert or erase letters. 7. Press YES to store the name and number. If you wish to store the phone number in a different position continue to the next instruction. 8. Press the right arrow twice to move the cursor to the top line of the display. Enter the number of the required memory position and then the right arrow. • To enter the number of a memory position on the phone memory, for example ¤1, press # to enter the ¤ character.
• If the displayed name is not the required one, scroll through the phone book with the right and left arrows until you find the correct name. 5. Press YES to call the name or NO to return to standby. Using the Name – Alt. 2 1. Clear the display by pressing CLR. 2. Press the left arrow followed by a numeric key. For example, to recall a name beginning with ‘A’, press 2. To recall a name beginning with ‘E’, press 3 twice.
2. Press and hold down CLR. The question ‘Erase?’ appears. 3. Press YES to erase the number. How to Erase All Phone Numbers From the Phone Memory 1. Select Erase all from phone from the PHONE BOOK menu. 2. Press YES to erase all phone numbers. How to Copy Phone Numbers From Card Memory to Phone Memory 1. Select Copy all from the PHONE BOOK menu. 2. Select Card->Phone and press YES. 3. Enter the number of the first positions in the card memory you wish to copy and press YES: 4.
The Answered Calls Memory If you subscribe to the Calling Line Identification (CLI) service of your network, the numbers of the last 5 answered calls are stored in the phone. To recall the last answered numbers, see Who Is Calling?, p. 36. The Dialled Numbers Memory If your SIM card supports this function and allocates 5 or more positions for last dialled numbers, the last numbers called are stored on the SIM. Otherwise, they are stored in the phone. How to Recall the Last Dialled Numbers 1.
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. How to Change the Ring Volume 1. Select Ring level from the SETTINGS menu. RING LEVEL ~ 0QQQQqqU You can set the level of the ringing signal in six steps.
How to Change the Ring Type 1. Select Ring type from the SETTINGS menu. RING TYPE ~ Medium 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. 23. You can set the tone of the ringing signal in three steps: low, medium or high. You can also choose a mixed tone or a melody.
Note! You can have one setting when the phone is used as a handheld unit and another setting when the phone is used together with any Ericsson handsfree equipment. How to Set the Minute Minder 1. Select Min Minder from the SETTINGS menu. ~ MINUTE MINDER On This function gives an indication of the time spent during conversation by entering a short beep every minute. How to Set Call Information 1. Select Call info from the SETTINGS menu.
Enter the greeting text using the numeric keys. See the table in The Phone’s Menus, 11. The Greeting function also lets you turn the greeting text off. How to Change the Name of Two Lines See The Two Line Service, p. 47. How to Display Your Phone Number If your phone number cannot be retrieved from your SIM card, you can enter it yourself. 1. Select Phone no from the SETTINGS SETTINGS menu. ~ Phone no 2. Enter the number and press ( ) YES.
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. 55 . How to Change the PIN Code 1.
How to Lock the SIM Card 1. Select Lock card from the ACCESS menu. 2. Press YES. 3. Enter your PIN code and press YES. The message Locked confirms that the card lock is now activated. The Phone Lock The phone lock protects the phone against unauthorised use in the event of theft. It is not activated when you purchase the phone. You should, however, activate the phone lock as soon as possible and also change the factory-programmed security code of 0000 to any 3to 8-digit personalised code.
Call Barring Note! This service may not be available on all networks or may require a separate subscription. The Call Barring service of the cellular network allows you to bar different types of outgoing and incoming calls to restrict the use of your phone.
The Keypad Lock It is possible to lock the keypad so that unintentional key action has no effect if the phone is turned on. An icon in the shape of a key to the left in the middle of the display informs you that the keypad is locked. Note! Calls to the international emergency number 112 can be made when the keypad is locked. The phone’s alarm can be turned off by pressing any key. The keypad will remain locked until you: • Answer an incoming call. 26 • Replace the battery. • 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 1. Select Clock mode from the CLOCK menu. 2. Select the required clock mode and press YES. How to Set the Clock 1.
How to Set the Alarm 1. Select Set alarm from the CLOCK menu. 2. Scroll to the New time option by using the right and left arrows. Press YES. 3. Enter the time in hours and minutes. Press YES. Note! If you have chosen the 12-hour format in the Clock mode function you can alternate between a.m. and p.m. by pressing * and #. 28 How to Turn the Alarm Off 1. Press any key to turn the alarm off when it sounds. 2. Press YES if you do not want the alarm to be repeated.
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.
The message Please wait appears followed by either the phone number and Divert On if the call divert is activated, or Divert Off if it is not activated. How to Check the Status of All Call Diverts 1. Select the Check all option from the DIVERT menu. The message Please wait appears followed by information about all call diverts, whether they are activated or not. How to Cancel a Call Divert 2. Press YES and scroll to the Cancel option. 3. Press YES to cancel the divert.
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 no network is within range, the message No network is displayed. • If more than one network is within range, the name of the other networks can be displayed by pressing the right arrow. 2. When the network you wish to use is displayed, press YES to select it. How to Start an Automatic Network Search An automatic network search can be started at any time. • Select New search form the NETWORKS menu. Forbidden Networks The names of the forbidden networks are stored in a list on your SIM card.
4. Finally, press YES to add the network to the list. How to Erase a Network from the List 1. Select Edit list from the NETWORKS menu. 2. Scroll to the network you wish to erase and press YES. 3. Scroll until Erase appears. 4. Press YES to delete the network from the list. EN/LZT 126 1353 R1B How to Rearrange the List 1. Select Edit list from the NETWORKS menu. 2. Scroll to the network you wish to move and press YES. Move is displayed. 3. Press YES and enter the new position in the list.
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 You can send DTMF tones during a call. You can send the characters 0 – 9, *, and # as DTMF tones by pressing the corresponding keys. 5. Press YES to make the call. When the call has been connected, the phone number disappears from the display.
How to Send a Code – Alt. 1 1. Call the required phone number and wait until the call has been connected. 2. Recall the code from the phone book. 3. Press YES to send the code. The characters are sent one by one. In the meantime the message Sending is displayed. EN/LZT 126 1353 R1B How to Send a Code – Alt. 2 It is possible to store both a phone number and a code separated by a pause character in the phone book. 1. Recall the phone number and the code from the phone book. 2. Press YES to make the call.
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. 1.
Hiding Your Phone Number Showing Your Phone Number Normally, your phone number will be sent when you make calls. If you do not wish your phone number to be sent on a particular call, the phone number can be hidden with the Hide Id function in the SPECIAL CHARACTERS menu. If you subscribe to withhold your phone number when making calls, you can use the Send Id function in the SPECIAL CHARACTERS menu to send your phone number on a particular call. Note! This function is operator dependant.
Handling More than One Call 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. How to Activate the Call Waiting Service To be able to receive a second call, you must activate the Call Waiting service. 1. Select Call Waiting from the ACCESS menu. 2. Press YES to activate. There may be a short delay before the network responds.
The waiting call is cleared. If the caller’s network supports it, the caller will hear a busy tone. Note! If Divert On busy is activated, the waiting call is diverted to the number you have specified. How to Switch Between Two Calls 1. Press YES to switch between the active call and the call on hold. How to End the Current Call 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.
Conference Calls 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 networks. How to Initiate a Conference Call 1. Call the first person you wish to include in the conference call. 2.
The Answering Service 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. Voice Mail The Voice mail function makes it easy to call your answering service to listen to recorded voice messages. Before you can use the Voice mail function it must be activated. How to Activate the Voice Mail 1. Select Set VoiceM from the MAIL menu.
Sending and Receiving Text Messages 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 on all networks.
The display shows: 4 Message? 7 2 8 Read? • Press NO if you want to read the message later on. • Press YES if you want to read the message at once. The date and sender will appear in the display. • Press YES to read the message. • Scroll forward through the message with the right arrow and back through the message with the left arrow. • To move three lines forward, press ‘3’. The message Reply? appears after the last line of the message.
How to Read Stored Messages 1. Select Read messages from the MAIL menu to read messages from the Messages memory. Select Card messages to read messages stored in the SIM card memory. 2. Press YES. 3. Scroll with the right and left arrows until you find the message you are looking for. 4. Press YES. 5. Read the message as described in How to Read a Message, p. 42. How to Send Messages 1. Select Send messages from the MAIL menu. 2. Press YES. New appears in the display. 3. Press YES to enter a new message.
Area Information 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 1. Select Area info from the MAIL menu. 2. Press YES. 3.
The Area Information Message List You can decide which types of AI messages you wish to receive. The phone’s Area Info list can hold up to 9 codes. How to Insert an Area Information Code Provided you have turned on the presentation of AI messages, you can access the Area info list from the MAIL menu. 1. Select Area info from the MAIL menu. 2. Press YES. 3. Scroll to Edit list and press YES. The digits to the left indicate the position in the list.
The Two Line Service Two voice lines with different phone numbers, Line1 and Line2, may be assigned to your phone. The ability to receive and send text messages (SMS), is only available on Line1. The Two Line service may not be available on all networks and may require a separate subscription. How to Select a Line 1. Select the menu that allows you to alternate between Line1 and Line2. 2. Press YES.
The Call Time/Call Cost 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. You can also have the call cost or the number of call units displayed provided your network and your SIM card support this feature. How to Check Time or Cost of Last Call You can check the time/cost of the last incoming (or outgoing) call with the Last call option in the INFO menu.
4. Enter the new currency with the numeric keys , for example GBP for Pounds Sterling, and press YES. 5. Enter the price per call unit, for example 0.25, and press YES. To enter the decimal points, press * or #. 6. Enter the PIN2 code and press YES. How to Revert to Displaying Call Units 1. Select Price from the INFO menu. 2. Press YES to select the Home option. 3. Press YES to revert to displaying call units.
Fixed Dialling 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. Here you only need to add the last two digits.
Data Menus 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 two data menus. SETTINGS ~Data menus (On) These data menus, SPEECH THEN FAX and NEXT CALL TYPE , must be activated if you have the same number for all types of calls to your mobile phone. This is called single numbering.
The Calculator The phone’s built-in calculator supports the four fundamental rules of arithmetic and percentages. How to Use the Calculator In this example we are going to divide 134 by 32. 1. Scroll to the CALCULATOR menu and press YES. 2. Enter 134. 4. Scroll with the right and left arrows to the division sign (/), and press YES. 52 5. Enter 32. 6. Scroll with the right and left arrows to the equal sign (=) or press #. 7. Press YES to get the result.
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. How to Enter a Simple Melody The simple melody is Do-Re-Me. This song corresponds to the C, D and E notes on a music scale. 1. Select EditMelody from the SETTINGS menu. 2. Clear the display by pressing CLR. EN/LZT 126 1353 R1B 3. Press 1.
Press this: To: 1–9 Insert notes. To get a short note press the key for a short time. To get a long tone, hold down the key. # Increase or decrease the pitch of the note to the left of the cursor in half tone steps. Press once for sharp, twice for flat and three times for normal pitch. C D E * Insert a short pause. F G A The arrows Scroll within the melody. Press and hold down to go the beginning or end of the melody.
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 Handheld phone: The battery may have to be charged or replaced. Handsfree phone in vehicle: Ensure that the phone is properly inserted in its holder. Check the fuse. The fuse holder is fitted to the battery cable, near the vehicle’s battery.
B Index A Alarm How to set How to turn off Answered calls How to erase How to review Answered calls memory Answering mode How to select Answering service How to call Area information How to receive How to turn off How to turn on Message list Message types Area information code How to erase How to insert How to replace Autolock 56 27 28 28 36 36 18 21 41 45 46 45 45 46 45 46 46 46 24 Barring password How to change Battery How to attach How to charge How to remove The low battery alarm 25 2 3 3 3 4 C Ca
Charger How to connect How to disconnect Clock How to set Conference call How to initiate Cost of last call How to check Credit limit for calls How to set 3 3 27 27 40 48 49 D Data Data menus How to activate Date How to set Date format How to set Dialled numbers memory How to erase phone numbers Display Display language How to use as scratch pad Indicators EN/LZT 126 1353 R1B 51 22 27 27 27 18 18 5 5 10 7 Time Display call units How to Display language How to change Display light How to change Divert c
Line1/Line2 How to answer a call Lines Different settings 47 47 M Melody How to enter Menus How to navigate Message How to read How to repeat How to reply How to store Message signal How to change Message type How to change Messages How to send Messages memory Minute minder How to set N Network 58 53 12 42 44 43 43 20 44 44 42 21 Automatic search mode Available Current Forbidden How to select search mode Manual search mode No network can be found Preferred Network How to select Network list How to add
PIN code How to change How to enter Wrong PIN2 code How to change Wrong Pre-programmed DTMF signalling How to send code Price per call unit How to enter 2 23 5 55 23 55 35 48 R Re-dial Automatic re-dial Ring signal Compose your own Ring type How to change Ring volume How to change 8 8 53 20 19 S Second call How to make How to receive EN/LZT 126 1353 R1B 38 38 Security code How to change SIM card Blocked How to insert How to lock How to unlock SIM card memory Special characters How to insert Speed di
