Sim900

GSM

H SU PA

Application Note—basic Voice and SMS Connection with SIM900 rev03
S SM
GPRS

HSDPA

E DG E

E IC VO
DISCLAIMER
This application note and any associated software is provided in an “as-is” condition. No warranties, whether expressed, implied or statutory, including, but not limited to implied warranties of merchantability and fitness for a particular purpose apply tothis application note or associated software. Otto Wireless Solutions, SIMCom and Otto Marketing shall not in any circumstances, be liable for special, incidental or consequential damages for any reason whatsoever. This application note, and any associated software, or parts thereof, may not be reproduced or distributed without the explicit permission of Otto Wireless Solutions.

Tel: (011) 7911033 / email: wireless@otto.co.za / url: www.otto.co.za

3G APPLICATION NOTE DETAILS
GSM DEVICE FIRMWARE ADDITIONAL NOTE COMPILED BY EMAIL MOBILE SIM900 R11.00 AT COMMANDS MUST BE UPPER CASE MARK COXEN MARK@OTTO.CO.ZA +27 82 888 6275

GSM

H SU PA

Application Note—basic Voice and SMS Connection with SIM900 rev03
S SM
GPRS

HSDPA

E DG E

E IC VO

APPLICATION NOTE DETAILS
GSMDEVICE FIRMWARE ADDITIONAL NOTE COMPILED BY EMAIL MOBILE NETWORK VODACOM MTN SIM900 R11.00 AT COMMANDS MUST BE UPPER CASE MARK COXEN MARK@OTTO.CO.ZA +27 82 888 6275 NUMBER "+27829119" or "+27829129" “+27831000113" "+27841000000" "+27741000050" FUNCTION Must return :ok”, use to check comms Identifies Firmware revision Switches off the echo—1 enables the echo Identifies FULL Firmware revisionIdentifies manufacturer Identifies module type i.e. SIM_900 Identifies module IMEI number Checks The SMS service centre Number Gives you the SIM telephone number (If an Error occurs, number is not set on SIM card) Acknowledges that the SIM and Modem are connected to the network Signal Strength - 0=-113dBm; 1= -111dBm;2->30 -109 TO -53dBm; 31= -51dBm< ; 99= No Reception Services offered on Modem -> GSM;FCLASS (Fax); +DS (data Services) Changes error warnings from number codes to text Stores all user settings Check the settings of the module Reset to manufacturer defaults

DISCLAIMER
This application note and any associated software is provided in an “as-is” condition. No warranties, whether expressed, implied or statutory, including, but not limited to implied warranties of merchantability andfitness for a particular purpose apply to this application note or associated software. Otto Wireless Solutions, SIMCom and Otto Marketing shall not in any circumstances, be liable for special, incidental or consequential damages for any reason whatsoever. This application note, and AT+CREG? AT+CSQ AT+GCAP AT+CMEE=2 any associated software, or AT&W parts thereof, may not be AT&V reproduced ordistributed AT&F without the explicit permission of Otto Wireless Solutions. AT COMMAND AT ATI ATE0 AT+GMR AT+GMI AT+GMM AT+GSN AT+CSCA? AT+CNUM?

Tel: (011) 791 1033 / email: wireless@otto.co.za / url: www.otto.co.za Page 1/5

3G
AT+CPBS="ON" AT+CNUM AT+CPBS="SM"

NETWORK SMS CENTRE NUMBERS

CELL C VIRGIN MOBILE

GENERAL ENQUIRIES

SET THE MOBILE NUMBER
AT COMMAND FUNCTION Set the valuefor writing the mobile number to the SIM Card Write the number to slot 1 on the sim card, ********* is the phone number, 145 is International dialing If set, the number will be shown Set back to SIM card storage

AT+CPBW=1,“+27*********”,145, “NAME”

GSM

H SU PA

Application Note—basic Voice and SMS Connection with SIM900 rev03
S SM
GPRS

HSDPA

E DG E

E IC VO

APPLICATIONNOTE DETAILS
GSM DEVICE FIRMWARE ADDITIONAL NOTE COMPILED BY EMAIL MOBILE AT COMMAND SIM900 R11.00 AT COMMANDS MUST BE UPPER CASE MARK COXEN MARK@OTTO.CO.ZA +27 82 888 6275

DISCLAIMER
This application note and any associated software is provided in an “as-is” condition. No warranties,

whether expressed, implied AT+CPIN=“XXXX”,”XXXX” or statutory, including, but not limited to implied...