Nokia 7250 Instructions d'installation

SUPPORT GUIDE FOR

THE NOKIA PHONES AND AT

COMMANDS

Contents

1. INTRODUCTION..............................................................................................................1

2. BASIC AT-COMMANDS................................................................................................... 1

3. SENDING AND RECEIVING AN SMS ............................................................................. 2

SENDING AN SMS ..............................................................................................................2

RECEIVING AN SMS ........................................................................................................... 3

4. HIGHSPEED AT-COMMANDS ........................................................................................4

5. GPRS AT-COMMANDS ...................................................................................................6

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1. INTRODUCTION

How to read/write SMS, start a modem, HSCSD or GPRS connection with Nokia phones by

using AT-commands.

2. BASIC AT-COMMANDS

Before making a dial-up connection it is recommended to reset the modem in phone and also

set the flow control. If you have PIN-code request on it can be typed in also with AT-

command (I e Nokia Card Phone may need this when used in non Windows environment).

Below some useful AT-commands:

Check that the connection between the phone and device works AT

- should give OK for response

Reset the modem and set the factory defaults ATZ&F

No flow control AT&K[0]

Hardware flow control (CTS/RTS) AT&K3

Software flow control (XON/XOFF) AT&K4

Type in PIN-code in terminal AT+CPIN="pppp"

- where pppp is your pin code. Yes, the double quotes are needed

Check signal strength AT+CSQ

- value close to 0 means no field. Value 31.99 is maximum.

Start a data call ATDT nnnnnnn

- where nnnnnnn is the phone number.

Start a voice call ATDT nnnnnnn;

- where nnnnnnn is the phone number. Note the semicolon (;) is needed!

Hang up the call ATH

Answer incoming call ATA

During a call you can return to AT command interpreter with command +++ (three times

plus). Then you can give AT commands during a call. This is useful when calling to I e

banking service which requires you to enter information with keypad (especially when using

Nokia Card Phone).

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3. SENDING AND RECEIVING AN SMS

SENDING AN SMS

1. Define the message format by typing AT+CMGF=1 (Text mode).

2. Set the Message centre number by typing AT+CSCA="XXX".

3. XXX is your network provider's message centre number (See Picture 1.).

4. Enter the recipient's phone number using the AT+CMGS="YYY" command (See Picture

1.).

4. Write the message and press Ctrl-Z.

Picture 1. Sending an SMS

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RECEIVING AN SMS

1. Define the message format by typing AT+CMGF=1 (See Picture 1.).

2. Type AT+CNMI=1,2,0,0,0 in order to see all the received messages (See Picture 2.).

Picture 2. Receiving an SMS.

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4. HIGHSPEED AT-COMMANDS

On the table below it is described AT-commands for Modem, ISDN v.110 and ISDN v.120

connections with different channel coding (speed of each slot) and timeslots (number of

receiving/transmitting slots). For example 3+1, 28800, 9600 means that the maximum speed

that you can receive data is 3x9600=28800 and maximum speed for sending data is

1x9600=9600, the maximum connection speed that is shown in the task tray is the same as

the maximum sending speed (28800).

Modem

at+cbst=7,0,1;+chsn=1,1,0,4