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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).
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.
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.
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).
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at+cbst=79,0,1;+chsn=3,2,0,4 Timeslots Max Connection Speed 19200 at+cbst=80,0,1;+chsn=4,3,0,4 Timeslots Max Connection Speed 28800 at+cbst=80,0,1;+chsn=4,2,0,8 Timeslots Max Connection Speed 28800 at+cbst=81,0,1;+chsn=6,3,0,8 Timeslots Max Connection Speed 38400 V.120 at+cbst=39,0,1;+chsn=1,1,0,4 Timeslots Max Connection Speed 9600 at+cbst=43,0,1;+chsn=2,1,0,8 Timeslots Max Connection Speed 14400 at+cbst=47,0,1;+chsn=3,2,0,4 Timeslots Max Connection Speed 19200 at+cbst=48,0,1;+chsn=4,3,0,4 Timeslots...
5. GPRS AT-COMMANDS For GPRS there are only a few AT-commands because user can't define the speed or timeslots. Set Access Point Name - Where xxx is your APN, also note that in some devices that semicolon (;) is needed and in some not Start GPRS connection - Please verify the phone number from your GSM operator! Other settings like DNS, IP address, username and password should be set in the device to...