Calculator

Phone book editing
Alternative phone books List menu system Outgoing calls Answered calls Missed calls Events

Index. Page 47

SIM card limitations
Network operators offer different kinds of services and different kinds of SIM cards. Please contact your network operator for further details. Depending on your type of SIM card some features described in this user guide may not be available to you or may not be operated in the way described. Where a feature relates to the network you will see this symbol in the user guide. The memory capacity of your SIM card may differ from one type of card to another.

Messages

Setup menu system Call divert
In order to activate the clock you must set the time and date. See page 34 for more information.
Call barring Call waiting

Side 6

KEYPAD FUNCTIONS

LED (Status indicator)

Slow green flash: Your phone is in contact with a network. Fast green flash: Indicates an incoming call or that an event is occuring. Slow red flash: Your phone cannot get in contact with a network. Fast red flash: The battery needs recharging.

DISPLAY SYMBOLS

Earphone Battery level indicator
See page 8 for more information.

Call divert indicator

On: All calls to your mobile telephone are diverted to another telephone number. Flashing: Check the status of your call diverts.
LED Signal strength indicator
The stronger the signal (more signal bars displayed), the better the radio connection.

Event indicators

An event is occurring. There is a missed event. The event is recurring. One or more events will occur today.

Side key

List menu indicator Phone book indicator Scroll indicators
Shows you that there are more functions up or down which you can access. Also used for scrolling through the list menus. Indicates which key to press to increase and decrease the volume level.

On/off key

Press the key for one second to switch your telephone on or off.
Function keys with text line in display
The function of each key varies according to whether you are in standby, menu or conversation mode. The text line at the bottom of the display will inform you of the actual function of each key at any time. By pressing the left-hand function key briefly the time and date will be visible on the display.

7. Enter PIN code, if requested, and confirm by pressing OK The telephone will now start searching for your home network. When connection is successfully established, the name of your network operator will be displayed. If the telephone cannot get in touch with your home network it will start searching for another co-operating network. If the phone cannot establish contact with any network at all and you attempt to make a call, the display will show please redial later.

Side 10

MAKING YOUR FIRST CALL

Selection of language

The display language of your phone is normally the national language of the country in which you purchased your SIM card. If this is not the case the display language will be English. You have the option of choosing between different languages. If by mistake you select a language which you don't understand you can return to your own language by pressing the following keys: 0000. 1. Press MENU 2. Press 31 3. Select language using 4. Confirm by pressing OK 5. Press EXIT
Phone numbers with extension number
Extension numbers can be dialled by entering a pause between the main number and the extension number. To enter a pause, press the -key for one second until the pause code P appears on the display.

Emergency calls

In most cases emergency calls can be made with or without a SIM card. To make an emergency call without a SIM card just enter the worldwide mobile phone emergency number 112, press SOS and confirm by pressing CALL.

Answering a call

1. Press ANSWER when the phone rings. 2. Press END to end the call.

Connected to +4596738000

Making your first call
1. Enter the phone number you want to call. 2. Press CALL to make the call. 3. Press END to end the call. If you call a phone number which is diverted to another phone number, the display will show the phone number to which you are connected and not the one entered by you.
Calling +4596738000 END MENU

END MENU

Use the arrow keys and decrease the speaker volume.

to increase and

REJECT

ANSWER

International calls
When making an international call, enter "+" by pressing the -key for one second and then enter the relevant national code number before the telephone number (e.g. +45 for Denmark).

Side 12

OPTIONS WHEN IN CONVERSATION

Muting the microphone

While having a call, you may wish to have a private conversation with someone else. You will hear everything your caller says but you cannot be heard by the caller. To switch off the microphone: 1. Press MENU 2. Select Microphone off To return to your telephone conversation: 1. Press MENU 2. Select Microphone on Your telephone supports the following network options: Having more than one conversation at a time, placing calls on hold, switching between calls, joining calls and transferring a conversation to another phone number. Switching between calls If you select Switch calls , the active call will be put on hold and the call on hold will now be active. In this way you can switch between your conversations. Ending an active call while another is on hold An active call can be ended by selecting Drop active. The held call will remain on hold and you have to retrieve it to continue conversation. Joining calls If you have an active call and a call on hold at the same time, you can select Join calls to enable all of you to speak together. Having a private call while others are on hold If you have joined all calls and want to have a private conversation with one of the callers, select Private. The other calls will be put on hold. Ending a call put on hold You can end the call put on hold by selecting Drop held. Transferring a call If you have an active call and a call on hold, you can connect the two by selecting Transfer call. In that way, the two parties can talk together while you withdraw from the conversation. Calling a number in the phone book During a conversation you can make a new call to a number stored in your phone book by selecting Phone book. Sending an SMS message If you want to send a message to a third party select Send message.

Voice mail number

If you have a voice mail number stored in your phone book this should be stored under location 1. On some networks this has already been done by the operator. Contact your network operator for further details on how to activate your voice mail.
If the location number consists of more than 1 digit, press the first digit(s) and hold the last digit for one second. 2. The call will automatically be initiated.
How to edit a name or a telephone number
1. Press to enter the List menu system.
How to find a name and a telephone number
2. Select Phone book and press

SELECT

3. Select Edit entry and press OK 4. Enter one or more letters of the entry you wish to edit or select it by using 5. Press EDIT 6. Change the number using CLEAR 7. Enter the correct phone number. 8. Confirm the change by pressing OK 9. Change name and location number in the same way, if necessary.
How to select your own location number
If you do not want to store the entry under the suggested location number, you can select a number of your own choice. Store frequently used numbers in location numbers 1 to 9 so that you can speed dial them by pressing only one key (see page 15). 1. Store telephone number and name as described previously in steps 1. to 3. 2. Press CLEAR and enter a location number of your own choice (up to 3 digits). 3. Confirm by pressing OK If you choose a location number that is occupied, the phone will give you the option of overwriting the existing entry. If you do not want to overwrite the existing entry, press EXIT and the location number suggested will be visible again.

MNO6 mno6

How to delete a name and a telephone number
How to edit a name and a phone number
Press CLEAR briefly one character will be deleted Press CLEAR for one second the entire display will be deleted

Speed dialling

It is possible to make calls to any number stored in the phone book more easily by using the location number (up to 3 digits). To be able to use the speed dialling function it must be switched on (see page 33). 1. Press the location number for one second.

2. Select Answered calls and press OK 3. Scroll through the telephone numbers. 4. When the telephone number you wish to redial is displayed, press SELECT 5. Press CALL to initiate the call.
Information number phone book

Find entries

Fixed number phone book

Back to standby mode

While you are in menu mode, pressing EXIT briefly will bring you one level up in the system. Holding EXIT will always bring you to the standby mode. The telephone automatically returns to standby mode when no key has been pressed for 60 seconds.
Service number phone book

Barred number phone book

Find, add, edit or delete entries

Side 20

MISSED CALLS
Your phone remembers the last 10 incoming calls which you did not answer. If the caller is one of the entries that you have stored in your phone book, then his name will appear on your display. The display will tell you how many missed calls your phone has received. If, for instance, there are 15 missed calls the standby display will show. 15. As the telephone registers only identified calls in the list, the number of missed calls shown on the display and the number of phone numbers actually listed may be different.

EVENTS

How to copy a phone number from one of the lists into your phone book
Your phone acts as a calendar enabling you to keep a check on different events such as meetings, phone calls to be made, birthdays, etc. The calendar is active even though your telephone is switched off.
How to be notified of occuring events
When an event is occurring you will see this symbol on the display, the phone will emit a ringing tone (if activated - see page 32) and the LED on top of the phone will flash green. The event text will be shown on the display. The phone will continue ringing for one minute if you dont acknowledge the event. Press DELETE/OK to do so. The event is automatically deleted unless you have selected that you dont want it to be deleted. See page 35 for more information.
2. Select the actual menu and the phone number you wish to copy into your phone book. 3. Confirm by pressing SELECT 4. Press to access your phone book.

How to add a new event

5. Give the number a name and a location number and press OK

2. Select Events and press SELECT 3. Select New event and press SELECT You can now choose from the following different event types:
How to delete call information Immediate access to the list of missed calls
1. Press 2. Scroll through the telephone numbers using or 3. When the telephone number you wish to dial is displayed, press SELECT 4. Press CALL to initiate the call. You can delete all entries stored in the Outgoing, Answered and Missed calls lists. Select the sub menu Delete call information in the Phone book setup menu and select the list which you want to delete.

How to postpone an event

If you do not have the time to see an event at the moment it occurs, you can postpone it. Press REMIND. The event will recur after 10 minutes.

Custom setup

(Recurring - if set by you) Standard alarm (Not recurring) 1 hour notice (Not recurring) Wake up alarm (Not recurring) Birthday (Recurs every year) In Custom setup you can define any setting according to your own wishes. The options available are: Set date, set start and end time, enter event text, set recurring frequency, select tone volume and pattern, and define advance notice for the event. As a minimum you will always have to enter date and start time (if you want to change the ones displayed). The cursor will always stand to the left of the digit/letter to be entered or corrected. Use the arrow keys to move the cursor. moves to the left, to the right. Confirm your entry by pressing OK , and the event is automatically saved. The settings of the last 4 event types are predefined by the manufacturer, but you can always change the settings. See under How to edit or delete an event on page 22 for more information.

How to see stored events

2. Select Events and press SELECT 3. Select List events and press OK Each date under which one or more events are stored will now be listed, indicated by the name of the day of the week and date. Use the arrow keys to scroll through the dates. After being highlighted for 2 seconds, the times of the first two events under the selected date will be listed. Press SELECT , and after further 2 seconds the text of the first stored event will be shown on the display. Use the arrow keys to scroll through the events. A recurring event will be marked by of the starting time. to the left

How to see the list of missed calls at a later moment
As soon as you have used the list, either to make a call or to view numbers, the symbol will disappear from the display. However, the list will always be available through the List menu system. 1. Press to enter the List menu system.
2. Select Missed calls and press OK The telephone number will be deleted from the list as soon as you have called it, but you can always find it again in the list of last outgoing calls.

Side 22

How to edit or delete an event
1. Follow steps 1 to 3 and proceed as described on page 21 to select the event you want to edit or delete. 2. Press SELECT twice. 3. Press OPTION 4. Select Edit event or Delete event and press OK Selecting Edit event you will get the possibility of editing the date, the start and end time of the event, the event text, the recurring frequency, the tone volume and pattern, and the advance notice for the event. 5. Confirm your corrections by pressing OK Select Delete event to delete the event. If the event is recurring you will be asked to confirm that you really want to delete it. When you turn on your phone, you will see this symbol on the display.

MESSAGES

Short Message Services (SMS)
Your phone can receive and send short text messages via the network. On some networks you have to subscribe to this facility. There are two types of messages: point-to-point messages which you can both receive and send, and cell broadcast messages which you can only receive. In addition to reading the message, you can either delete it send a reply forward it to another phone number edit it before sending extract a phone number, if any, from the message to call or to store in your phone book call back to the sender 1. Press OPTION 2. Select the option you wish to enter and confirm by pressing OK 3. The display will guide you through the next steps. When a message has been read it will be indicated by a to the left of the date of receipt. The SMS indicator remains on the standby display as long as there are unread messsages.

Phone book setup (Menu 5)
Fixed dialling on/off Barred dialling on/off Phone book sorting Delete all entries stored in the lists (Outgoing, Answered, Missed)
While you are in menu mode, holding EXIT will always bring you to the standby mode. The telephone automatically returns to standby mode when no key has been pressed for 60 seconds.
Network services (Menu 1)
17 Call divert Call barring Call waiting Closed user group Outgoing call identification Line selection Calling name presentation
Call timers and charge (Menu 6)
View duration and cost of last call View duration and cost of total calls Reset call timers and call charge Display call timer and credit during conversation 65 Call charge

Menu numbers

On the right hand side in the first line of the display you will always see the number of the menu and sub menu in which you are operating. This is indicated by up to 6 digits. Example: = Menu 6: Call timers and charge 2 = Sub menu 2: View total calls A before the sub menu/option number indicates the option you have selected.

Tones setup (Menu 2)

Ring tone Trembler (optional extra) Message tone Broadcast tone Key tone Factory settings

Security (Menu 7)

75 PIN code SIM card lock Change network password Encryption indication Line lock

Phone setup (Menu 3)

39 Selection of language Dial setup Selection of network Power saving function Car kit options Edit welcome greeting Time & date setting Event auto delete Factory settings
Calculator (Menu 8) Applications (Menu 9)
The availability of this menu depends on your SIM card. If available it will always appear as the first menu when you press MENU. The options and the menu title in this special menu are defined by your network operator. The menu allows you to set up a dialogue between you, your SIM card and your network operator.
Shortcut to the setup menu system
As you get more familiar with the Setup menu system, you will probably find it easier to access some of the menus simply by pressing the menu code number. For example, to see the duration of your total calls: 1. Press MENU 2. Press 62

Message setup (Menu 4)

41 Setup for sending Point-to-point messages 42 Setup for receiving Cell broadcast messages 43 Delete messages

Side 28

CALL DIVERT
You have the option of diverting all calls or choosing to divert incoming calls only if unanswered. The unanswered calls option diverts calls if you are busy if you do not reply if there is no contact Registration To enable a call divert you must register it first. You will be asked to specify whether you want the call divert function to apply to all services, speech, data services, fax services or message services (SMS). Deactivation/activation You may not be able to make use of the deactivate and activate options. In that case you must cancel a call diversion by selecting Cancel. Next time you want your incoming calls diverted, select Register. Calls can be diverted to a telephone number stored in your phone book or to any other number. Access your phone book by pressing or enter a phone number via the keypad. If you have chosen to have all calls diverted, the call divert indicator will be visible on the standby display. If you wish to suspend your calls being diverted for a time, select Deactivate. All registrations will remain in the network, so next time you wish to divert your calls to the same number, simply select Activate. Validity time If you have selected

How to activate call divert for all calls
1. Press MENU 2. Select Network services by pressing SELECT 3. Confirm by pressing SELECT once more to indicate that you want access to the call divert menu. 4. Select using

Divert if unanswered

Divert if no reply
you can specify that a period of time must elapse before the call is diverted. This period can be from 5 to 30 seconds at intervals of 5 seconds. It is always possible to see the status of the activated call diversions by selecting Status. Registered call diversions can be cancelled individually or can all be cancelled at once by selecting Cancel all.
Divert all calls Register All services Speech Data services Fax services Message services Number Activate Deactivate Status Cancel Status Cancel all (call diverts)
5. Confirm your choice by pressing OK If you want to activate a call divert on the basis of
Divert Divert Divert Divert

if if if if

unanswered busy no reply no contact
just follow the procedure described above giving you the same options.

Side 30

CALL BARRING
You can set up call barring for different types of outgoing and incoming calls to restrict the use of your phone. You have to activate the type of call barring you wish to set up. You are asked to specify whether you want the call barring to apply for all services, speech, data services, fax services or message services (SMS). When setting up or cancelling any call barring, you will be asked to enter your 4-digit password provided by your network operator. You can always see the status of the actually activated call barring by selecting Status.
CALL WAITING / SUPPLEMENTARY NETWORK SERVICES
1. Press MENU 2. Select Network services by pressing SELECT 3. Select Call barring using and confirm by pressing SELECT 4. Select using

Incoming call barring

Select All calls if you want to bar all incoming calls. Select Roaming if you want incoming calls to be barred only when you are connected to a foreign network.
option of calling outside the group perhaps at a higher charge.
Outgoing call identification
You can select whether you want your phone number to be shown or not at the next outgoing call. In Network Service select the option Outgoing call identification , then Show info for next call and confirm your choice by pressing OK.

Cancelling call barrings

Call barrings can be cancelled individually or by selecting Cancel all.

Message tone

Your telephone can alert you to the arrival of a SMS message by means of different alert tones.

Keypad tone

To help you keep check on your dialling, the phone can be set to give 8 different tone patterns following every key pressed.
Language Dial setup Network selection Power saving Car kit Greeting Time & date Event auto delete Factory settings
5. Confirm by pressing SELECT 6. Make your selection using 7. Confirm by pressing OK

Network selection

When you wish to use your phone abroad, you have to select a foreign network. This can be done either manually or by letting your telephone do it for you automatically. In the automatic mode, your phone will automatically try to reach your home network first, then, alternatively to find another available network stored in a preferred list made by you (see page 34). In the manual mode, the phone will always start searching for the network with which it was in contact when it was switched off. If the phone cannot locate this network it will present some alternative networks on the display, and you can then select one manually. You can select any network from the list, but your phone can get in contact only with cooperating networks (Roaming). The telephone can get into contact with other networks but only for emergency calls. Your dealer or network operator can tell you which networks are co-operating.
Ringing volume level and ringing tones
You can adjust the ringing volume level and select the ringing tones according to your surroundings and preferences. Ringing volume levels are high, medium, low, escalating and off. The LED on top of the phone will emit a fast green flash to indicate an incoming call. If the ringing tone is set to off you will see the symbol on the standby display. You have the option of selecting between 27 different ringing tone patterns. The selected ringing tone will sound at the relevant ringing volume level when making your selection.

Factory settings

You can always return to the original tones setup of your phone. The phone is set up by the manufacturer as follows: Ringing volume level: Ringing tone: Trembler: Message tone: Broadcast tone: Key tone: Loud British Off Simple Discreet 1 3

Language selection

The display language of your phone is normally the national language of the country in which you purchased your SIM card. If this is not the case the display language will be English. You have the option of choosing between different languages. (See page 10 for how to select language).

Dial setup

Automatic redial If the phone number you are calling is busy or your call is not answered, you can let your phone make up to 10 automatic redial attempts. A special redialling success tone sounds when the attempt is successful. To cancel the auto redialling attempts just press the left function key.

Side 34

Preferred list The list of networks on your SIM card defines the order of preference in which your phone will select a network in automatic mode. Network operators offer different services and call charges; therefore it may be beneficial for you to make a preferred list of your own. Enter the individual networks in your own order of preference and store them on your SIM card. To do this, you must access the Selection of net-work sub menu, select the Set preferred list option and use to select the empty location in which you want to store the new network. Pressing EDIT will give you a list of available net-works. Scroll through the list using. When you see a network you wish to store in your preferred list, just press OK. If you select a currently used location and press EDIT , the former occupant can be deleted when you enter the new one. Just press EXIT to leave the list as it was. Once a network is stored in the preferred list, you can always see the country and network code of the actual network by pressing EDIT in the Set preferred list option.

Car kit installation

This option is only effective if the phone is connected to a handsfree car kit. See page 41 for more information. Note: If your phone has been without power for more than 8 hours you should set the time and date function again. Otherwise you may risk that all functions using the time and date feature may not be active.

Welcome greeting

You can change the welcome greeting of your phone according to your own wishes. Delete the old message by holding CLEAR , enter the new greeting via the keypad and confirm by pressing OK.

Event auto delete

Your phone will automatically delete an event as soon as it has occurred. However, a recurring event will not be deleted in this way. You must then enter the List menu system. If you dont want the event to be deleted automatically select Event auto delete off. In that case the right function key text will be OK when the event occurs.

Time & date

The current time and date will be shown in the standby display after 3 seconds if you have selected these to be shown. To do so just select Show time on and Show date on. You can set both time and date and any corrections are made by using the arrow keys. moves the cursor to the left. moves the cursor to the right. Entering the Time format option you can set the clock to either 12 or 24 hours. In the option Date format you have the choice of specifying the sequence in which you want the date to be shown, e.g. date, month and year. However, if one of the following symbols are shown in the standby display, time and date will not be visible:

SECURITY

How to enable, disable and change PIN codes
1. Press MENU 2. Select Security using 3. Confirm by pressing SELECT 4. Select using either

PIN code

To prevent misuse of your SIM card, e.g. if it is lost or stolen, you can select a PIN code to be entered each time you switch on the phone. The PIN code is a 4 to 8-digit number of your own choice, which you can change any time you like. If you enter an invalid PIN code three times, your SIM card will be blocked and to unblock it you have to enter the PIN Unblocking Key (PUK) code supplied by your network operator. This procedure prevents unauthorized person from working out your PIN code by repeatedly entering different combinations of numbers. The display will inform you how many tries you have left before the SIM card is blocked. If you enter an invalid PUK code 10 times, your SIM card will be permanently blocked and you have to contact your network operator. Some SIM cards use a PIN2 code for accessing special functions. Contact your network operator for further information on PUK2 and PIN2 code.

How to change password

If you subscribe to a call barring service your network operator will have supplied you with a 4-digit password. If you want to change this, select Network password in the Security menu.

Encryption indication

If you connect to a network which does not support encryption, you will get a warning in the display when trying to make a call. You have the option of turning off this network warning by selecting Encryption indication off in the security menu.

How to see timers

1. Press MENU 2. Select Call timers and charge using 3. Confirm by pressing SELECT 4. Select using either
PIN code PIN code on PIN code off PIN code change Change PIN Change PIN2 SIM lock SIM lock on SIM lock off Network password Encryption indication Encryption indication on Encryption indication off Line lock Line lock on Line lock off

Other accessories

Vibra-Alarm 400 mAh Li-ION battery Vibra-Alarm 650 mAh Li-ION battery Light 650 mAh Li-ION battery Light 750 mAh NiMH battery High Power 1800 mAh Li-ION battery Travel Charger Cigarlighter Charger 12/24 V

BOSCH EASY SETS

Accessories for Bosch mobile phones
Manufactured and sold under U.S. Patent Nos. 4,675,863, 4,777,633, 4,785,450, 4,811,420 (including related divisional, continuations and foreign counterparts) licensed from InterDigital Technology Corporation.
For the car GSM 909 Executive Voice Controlled Handsfree Car Kit Professional Handsfree Car Kit Basic Car Kit Simple Car Holder Cigarlighter Charger 12V/24V For the computer Data Interface For charging Desktop Charger Travel Charger - EU Travel Charger - UK Travel Charger - AUS Travel Charger - US For power Light 650 mAh Li-Ion battery Vibra-Alarm 400 mAh Li-Ion battery Vibra-Alarm 650 mAh Li-Ion battery Light 750 mAh NiMH battery High Power 1800 mAh Li-Ion battery Outfit Headset Belt clip

109 104

701 707

GSM 908/GSM 909 DUAL/GSM 909 DUAL S AT Command Reference

References

[1] GSM 07.05 Use of Data Terminal Equipment - Data Circuit terminating Equipment (DTE-DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS) [2] GSM 07.07 AT command set for GSM Mobile Equipment (ME) [3] ITU-T V25ter Serial asynchronous automatic dialling and control

Contents

Introduction..... 2 Abbreviations and Definitions.... 2 2.1 2.Abbreviations.... 2 Definitions..... 2
AT Commands..... 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 3.20 3.21 3.22 3.23 3.24 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 3.33 3.34 3.35 3.36 3.37 3.38 E Command Echo.... 3 Q Result code suppression..... 3 V response format..... 3 &C Circuit 109 behaviour.... 3 &D Circuit 108 behaviour..... 4 &K Local flow control..... 4 +IPR Fixed DTE data rate.... 4 +CGMI/GMI/FMI Manufacturer Id.... 5 +CGMM/GMM/FMM.... 5 +CGMR/GMR/FMR Revision Id... 5 +CGSN/GSN Serial Number.... 5 Z Reset..... 5 &F Restore factory settings.... 6 I Manufacturer Information.... 6 +GCAP Request capabilities.... 6 +WS46 Select wireless network.... 6 D Dial..... 7 +CBST Select Bearer Service... 7 +CRLP Radio Link Protocol.... 8 T Select tone dialling.... 8 P Select pulse dialling.... 8 A Answer a call.... 9 H Hang-up call..... 9 O Go on-line..... 9 W Negotiation process message selection... 9 S0 Automatic answer.... 9 S7 Connection completion timeout... 10 S8 Comma dial modifier time.... 10 L Monitor speaker mode.... 10 M Speaker control setting.... 11 +CPAS Phone activity status.... 11 +CPBS Select phonebook memory storage.... 11 +CPBR Read phonebook entries.... 11 +CPBW Write phonebook entry.... 12 +CMEE Mobile Equipment Errors.... 12 +CSMS Select Message Service.... 12 +CPMS Select preferred message storage... 12 +CMGF Message Format.... 13 - 1/20 1.4/B__22CR.doc
GSM 908/GSM 909 DUAL/GSM 909 DUAL S, AT Command Reference
3.39 3.40 3.41 3.42 3.43 3.44 3.45 3.46 3.47 3.48 3.49 3.50 3.51 3.52 3.53 3.54 4
+CSCA Service Centre Address... 13 +CNMI New Message Indications.... 13 +CMGL List Messages.... 14 +CMGR Read Message.... 14 +CMGD Delete Message..... 15 +CMGS Send Message.... 15 +FTS Stop transmission and wait.... 15 +FRS Receive silence..... 15 +FTM Transmit data.... 16 +FRM Receive data.... 16 +FTH Transmit data with HDLC framing... 16 +FRH Receive data with HDLC framing... 17 +FCLASS Select mode.... 17 +CME ERROR: <err>.... 17 +CMS ERROR: <err>.... 18 +CMTI..... 18
List of AT Commands and Result codes.... 19 4.1 4.2 AT Commands..... 19 Result codes.... 20

1 Introduction

This reference describes the AT commands supported by the GSM 908/GSM 909 DUAL and GSM 909 DUAL S. Each supported AT command is described in detail with supported parameters.
2 Abbreviations and Definitions

2.1 Abbreviations

DCE DTE SIM ITU-T TIA ETSI ME RLP SM AT Data Circuit terminating Equipment Data Terminating Equipment Subscriber Identity Module International Telecommunications Union Telecommunications Standardization Sector Telecommunications Industry Association European Telecommunications Standards Institute Mobile Equipment Radio Link Protocol Short Message Attention; this two-character abbreviation is always used to start a command line to be sent from the DTE to DCE

2.2 Definitions

<CR> <LF> <.> [.] Carriage return character Line feed character Name enclosed in angle brackets is a syntactical element. Brackets themselves do not appear in the command line Optional subparameter of a command or an optional part of DCE information. Brackets themselves do not appear in the command line

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1.4/B__22CR.doc

3 AT Commands

3.1 E Command Echo
Syntax: E[<value>] Supported values: <value> 0 Commands are not echoed 1 Commands are echoed (default)
3.2 Q Result code suppression
Syntax: Q[<value>] Supported values: <value> 0 Result codes are transmitted (default) 1 Result codes are suppressed and not transmitted

3.3 V response format

Determines whether the resultcodes should be returned in numerical or verbose form. Syntax: V[<value>] Supported values: <value> 0 Returns the code in numerical form 1 Returns the code in verbose form (default)
3.4 &C Circuit 109 behaviour
Determines how ITU-T V.24 circuit 109 (Received line signal detector, CD) relates to the detection of received line signal from remote end. Syntax: &C[<value>] Supported values: - 3/20 1.4/B__22CR.doc

<value> 0 Circuit 109 always ON 1 Circuit 109 operation relates to detection of received signal. (default)
3.5 &D Circuit 108 behaviour
Determines how DCE responds when ITU-T V.24 circuit 108 (Data Terminal Ready, DTR) changes from the ON to OFF condition during online data state. Syntax: &D[<value>] Supported values: <value> 0 DTR is ignored 1 Go to command mode 2 Hang up and go to command mode (default)
3.6 &K Local flow control
Selects the local flow control method. Syntax: &K[<value>] Supported values: <value> 0 Flow control disabled 3 RTS/CTS (hardware) flow control is enabled (default)
3.7 +IPR Fixed DTE data rate
Specifies the transmission speed at which the DCE will accept commands. Syntax: +IPR=<rate> Supported values: <rate> 19200
Automatic rate detection (default) 600 bit/s 1200 bit/s 2400 bit/s 4800 bit/s 9600 bit/s 19200 bit/s

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3.8 +CGMI/GMI/FMI Manufacturer Id
Returns manufacturer identification. Syntax: +CGMI or +GMI or +FMI

3.9 +CGMM/GMM/FMM

Returns model identification. Syntax: +CGMM or +GMM or +FMM
3.10 +CGMR/GMR/FMR Revision Id
Returns revision identification in format X.Y.Z, e.g. 1.0.2. Syntax: +CGMR or +GMR or +FMR
3.11 +CGSN/GSN Serial Number
Returns serial number, e.g.: 0045036700152000. Syntax: +CGSN or +GSN

3.12 Z Reset

Resets the DCE and returns to default (factory) settings. Syntax: - 5/20 1.4/B__22CR.doc
3.13 &F Restore factory settings
Restores DCE factory settings. Syntax: &F
3.14 I Manufacturer Information
The I<n> command returns information about the modem. The implementation of this command is manufacturer specific. Syntax: I<n> Supported values: <n> 9 Returns Plug and Play Id character string
3.15 +GCAP Request capabilities
Returns a complete list of capabilities, in this case +FCLASS, +CGSM. Syntax: +GCAP
3.16 +WS46 Select wireless network
Selects wireless network to operate with the DCE. Syntax: +WS46=[<n>] Supported values: <n> 12 GSM digital cellular (default)

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3.17 D Dial
Dials the number specified in the dialling string. Syntax: D<n> Supported values: <n> 1, 2, 3, 4, 5, 6, All digits specified may be used in the dialling string. 7, 8, 9, 0,*, #, Note: When dialling string starts with international access code character + or 00" type of +, A, B, C address is set to 145 otherwise 129 (unknown). Ignored values: <n> D , T P ! W @ ;

Pause during dialling Tone dialling Pulse dialling Register recall Wait for dial tone Wait for quiet answer Initiates a voice call
I, i Override the CLIR suppression G, g Control the CUG service information
3.18 +CBST Select Bearer Service
Selects the bearer service <name> with the data rate <speed>, and the connection element <ce> to be used when data calls are originated. Syntax: AT+CBST=[<speed>[,<name>[,<ce>]]] Supported values: <speed> 71
Autobauding (default) 2400 bit/s (V.22 bis) 2400 bit/s (V.26ter) 4800 bit/s (V.32) 9600 bit/s (V.32) 9600 bit/s (V.34) 2400 bit/s (V.110) 4800 bit/s (V.110) 9600 bit/s (V.110)
<name> 0 Asynchronous modem (default)

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<ce> 2 3
Transparent Non Transparent (default) Both, Transparent preferred Both, Non Transparent preferred
3.19 +CRLP Radio Link Protocol
Sets Radio Link Parameters. Syntax: AT+CRLP=[<iws>[,<mws>[,<T1>[,<N2>]]]] Supported values: <iws> 0-61 IWF to MS window size (default 61) <nws> 0-61 MS to IWF window size (default 61) <T1> >380 Acknowledgement timer in ms (default 480) <N2> >0 Retransmission attempts (default 6)
3.20 T Select tone dialling
Selects tone dialling. The command is ignored but added for compatibility. Syntax: T
3.21 P Select pulse dialling
Selects pulse dialling. The command is ignored but added for compatibility. Syntax: P

3.22 A Answer a call

Answers an incoming call. Syntax: - 8/20 1.4/B__22CR.doc

3.23 H Hang-up call

Hangs up the current call. Syntax: H[<value>] <value> 0 Hang-up call, go on-hook (default).

3.24 O Go on-line

Return from online command state to online data state. Syntax: O[<value>] <value> 0 Return from online command state to online data state (default)
3.25 W Negotiation process message selection
Determines which result codes that is used to describe the type of connection and protocol, etc., that resulted from handshaking and negotiation. Syntax: W[<value>] <value> 2 3

CONNECT result code reports DTE speed Hayes 4 line format CARRIER, PROTOCOL, COMPRESSION, DTE speed CONNECT result code reports DCE speed (carrier rate) (default) Hayes 4 line format CARRIER, PROTOCOL, COMPRESSION, DCE speed

3.26 S0 Automatic answer

This S parameter controls the automatic answering function in the DCE. Syntax: S0=[<value>] <value> 0 Automatic answering is disabled (default) - 9/20 1.4/B__22CR.doc
Answer the call after the number of RINGs specified by <value>. Note: Disabled when no cable is connected.
3.27 S7 Connection completion timeout
This S parameter specifies the amount of time, in seconds, that the DCE will wait for a carrier before disconnecting. Syntax: S7=[<value>] <value> 1-255 Number of seconds in which a connection must be established or call will be disconnected. The command is supported but has no effect.
3.28 S8 Comma dial modifier time
This S parameter specifies the amount of time, in seconds, the DCE must pause when the , dial modifier is used. Command is accepted for compatibility reasons, but has no effect. Syntax: S8=[<value>] <value> 0-255 All values accepted, but no effect.
3.29 L Monitor speaker mode
Speaker volume setting. The command is accepted for compatibility reasons, but has no effect. Syntax: L[<value>] <value> 0-3 All values accepted, but no effect.
3.30 M Speaker control setting
Speaker control setting. The command is accepted for compatibility reasons, but has no effect. Syntax: M[<value>] <value> - 10/20 1.4/B__22CR.doc
All values accepted, but no effect.
3.31 +CPAS Phone activity status
Returns activity status <pas> of the mobile. Syntax: +CPAS Supported values: <pas> 0

Ready to accept commands

3.32 +CPBS Select phonebook memory storage
Selects phonebook memory storage that is used by phonebook commands. Syntax: +CPBS=<storage> Supported values: <storage> SM SIM phonebook (default)
3.33 +CPBR Read phonebook entries
Reads phonebook entries in the number range specified in the command. Syntax: +CPBR=<index1>[,<index2>] The <index1>, <index2> are integer type values in the range of location numbers in phonebook memory.
3.34 +CPBW Write phonebook entry
Writes phonebook entry in location number <index> in the current phonebook memory. Syntax: +CPBW=[<index>][,<number>[,<type>[,<text>]]] Supported values:

<index>

integer type values in the range of location numbers of phonebook memory - 11/20 1.4/B__22CR.doc
<number> string type phone number of format <type> <type> type of address octet in integer format. Default 145 when dialling starts with +, otherwise 129 <text> string type field
3.35 +CMEE Mobile Equipment Errors

This command enables or disables report of Mobile Equipment errors. Syntax: +CMEE=[<n>] Supported values:
<n> 0 Disable, no ME errors are shown 1 Enable, ME errors are shown in numeric form (default) 2 Verbose mode
3.36 +CSMS Select Message Service
Selects messaging service <service>. It returns types of messages supported by the ME. Syntax: +CSMS=<service> Supported values: <service> 0 GSM 03.40 and 03.41
3.37 +CPMS Select preferred message storage
This command selects the preferred message storage for reading and deletion of SMS messages. Syntax: +CPMS=<mem1>[,<mem2>[,<mem3>]] Supported values: <mem1> SM SIM message storage <mem2> SM SIM message storage <mem3> SM SIM message storage

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3.38 +CMGF Message Format
Set command selects the message format. Syntax: +CMGF=<mode> Supported values: <mode> 0

PDU mode

3.39 +CSCA Service Centre Address
Set command updates the service centre address, through which mobile originated SMS are sent. Syntax: +CSCA=<sca>,[<tosca>] Supported values: Please refer to GSM 07.05 [1] for detailed description of parameters.
3.40 +CNMI New Message Indications
Set command selects the procedure, how receiving of new messages from the network is indicated to the DTE when DTE is active. Syntax: +CNMI=[<mode>[,<mt>[,<bm>[,<ds>[,<bfr>]]]]] Supported values: <mode> 1 Discard indication and reject new received message unsolicited result codes when DTE-DCE link is reserved (e.g. on-line data mode); otherwise forward them directly to the DTE (default) <mt> 0 1
No SMS-DELIVER indications are routed to the DTE (default) Indication of SMS-DELIVER is routed to the DTE using unsolicited result code +CMTI: <mem>,<index>
<bm> 0 <ds> 0 <bfr> 0
No CBM indications are routed to the DTE (default)
No SMS-STATUS-REPORTs are routed to the DTE (default)
DCE buffer of unsolicited result codes defined within this command is flushed to the DTE when <mode> 1.3 is entered (default) - 13/20 1.4/B__22CR.doc
DCE buffer of unsolicited result codes defined within this command is cleared when <mode> 1.3 is entered.

3.41 +CMGL List Messages

Command returns messages with status value <stat> from preferred message storage <mem1> to the DTE. Syntax: +CMGL[=<stat>] Supported values: <stat> 4
received unread message (default) received read message stored unsent message stored sent message all messages

3.42 +CMGR Read Message

Command returns messages with location value <index> from preferred message storage <mem1> to the DTE. Syntax: +CMGR=<index> Supported values: <index> integer type; value in the range of location numbers supported by the associated memory

3.43 +CMGD Delete Message
Command deletes message with location value <index> from preferred message storage <mem1>. Syntax: +CMGD=<index> Supported values: <index> integer type; value in the range of location numbers supported by the associated memory

3.44 +CMGS Send Message

Command sends message from the DTE to the network. Syntax: - 14/20 1.4/B__22CR.doc
+CMGS=<length><CR>PDU is given<ctrl-Z/ESC> Supported values: Please refer to GSM 07.05 [1] for detailed description of parameters.
3.45 +FTS Stop transmission and wait
Causes the DCE to stop any transmission. The DCE then waits for the specified amount of time, and then sends the OK result code to the DTE. Syntax: +FTS=<n> Supported values: <n> 0-255
Wait for <n> * 10 ms before responding with OK
3.46 +FRS Receive silence
Causes the DCE to listen, and to report back to the DTE with an OK result code when silence has been present on the line after the specified amount of time. Syntax: +FRS=<n> Supported values: <n> 0-255 Silence for <n> * 10 ms before responding with OK

3.47 +FTM Transmit data

Causes the DCE to transmit data using the modulation selected in <mod>. Syntax: +FTM=<mod> Supported values: <mod> 72 96
V.27ter 2400 bit/s V.27ter 4800 bit/s V.bit/s V.bit/s

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3.48 +FRM Receive data
Causes the DCE to enter receive mode using the modulation selected in <mod>. Syntax: +FRM=<mod> Supported values: <mod> 72 96
3.49 +FTH Transmit data with HDLC framing
Causes the DCE to transmit data using the modulation selected in <mod>. Syntax: +FTH=<mod> Supported values: <mod> 3 V.bit/s
3.50 +FRH Receive data with HDLC framing
Causes the DCE to enter receive mode using the modulation selected in <mod>. Syntax: +FRH=<mod> Supported values: <mod> 3 V.bit/s

3.51 +FCLASS Select mode

Command puts the DCE into a particular mode of operation (data, fax etc.). Syntax: +FCLASS=<n> Supported values:

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<n> 0 1
Data Fax class 1 (TIA-578-A)
3.52 +CME ERROR: <err>
This message indicates an error related to the mobile equipment or network. Supported values: <err> (numeric) <err> ( verbose) Phone failure No connection to phone Phone-adaptor link reserved Operation not allowed Operation not supported PH-SIM PIN required SIM not inserted SIM PIN required SIM PUK required SIM failure SIM busy SIM wrong Incorrect password SIM PIN2 required SIM PUK2 required Memory full Invalid index Not found Memory failure Text string to long Invalid characters in text string Dial string to long Invalid characters in dial string No network service Network timeout Unknown

3.53 +CMS ERROR: <err>
This message indicates an error related to the mobile equipment or network in connection with SMS commands. Supported values: <err> (numeric) 0-127 128-<err> ( verbose) GSM 04.11 Annex E-2 values GSM 03.40 section 9.2.3.22 values ME failure SMS service of ME reserved Operation not allowed Operation not supported Invalid PDU mode parameter Invalid text mode parameter SIM not inserted SIM PIN necessary PH-SIM PIN necessary - 17/20 1.4/B__22CR.doc

332 500

SIM failure SIM busy SIM wrong Memory failure Invalid memory index Memory full SMSC address unknown No network service Network timeout Unknown error

3.54 +CMTI

SMS deliver indicated by <mem> and <index>. +CMTI: <mem>,<index>

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4 List of AT Commands and Result codes

4.1 AT Commands

E Q V &C &D &K +IPR +CGMI +CGMM +CGMR +CGSN Z &F I +GMI +GMM +GMR +GSN +GCAP +WS46 D<n> +CBST +CRLP T,P A H O W S0 S7 S8 L, M +CPAS +CPBS +CPBR +CPBW +CMEE +CSMS +CPMS +CMGF +CSCA +CNMI +CMGL +CMGR +CMGS +CMGD +FMI +FMM +FMR +FTS +FRS +FTM Command echo Result code suppression DCE response format Circuit 109 behaviour Circuit 108 behaviour Selects the local flow control method Fixed DTE data rate. Request Manufacturer Identification Request Model Identification Request Revision Identification Request Serial Number Identification Reset to default configuration Restore factory settings Request manufacturer specific information Request Manufacturer Identification Request DCE Model Identification Request DCE Revision Identification Request DCE Serial Number Identification Request overall capabilities of DCE Select wireless network Originate call Select bearer service type Sets radio link protocol parameters tone/pulse dialling Answer call Hang-up call Returns to online data mode Negotiation progress message selection. Automatic answer Connection completion timeout Comma dial modifier time Monitor speaker mode Phone activity status Selects phonebook memory storage Read phonebook entries Write phonebook entry Report mobile equipment error Select Message Service Preferred Message Storage Message Format Service Centre Address New Message Indications to DTE List Messages Read Message Send Message Delete Message Request Manufacturer Identification Request Model Identification Request Revision Identification Stop transmission and wait Receive silence Transmit Data - 19/20 1.4/B__22CR.doc

+FRM +FTH +FRH +FCLASS (+++)
Receive Data Transmit Data with HDLC framing Receive Data with HDLC framing Select mode Escape from data mode

4.2 Result codes

Numeric +F4 See 3.52 See 3.53 See 3.54 Verbose OK CONNECT RING NO CARRIER ERROR CONNECT 1200 BUSY CONNECT 600 CONNECT 2400 CONNECT 4800 CONNECT 9600 CONNECT 19200 CARRIER 2400 CARRIER 4800 CARRIER 9600 PROTOCOL: NONE PROTOCOL: RLP CONNECT 300 +FCERROR +CME ERROR: <err> +CMS ERROR: <err> +CMTI

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