GSM100 rfsolutions.ltd, GSM100 Datasheet - Page 12

• Manufacturer Part Number: GSM100
• Description: Gsm & Gprs Modem
• Manufacturer: rfsolutions.ltd

DS100-1 May ’07
11
3.2. Basic Operation :
Followings are examples of some AT commands. Please refer to the AT Command guide for a full
description.
Note: Issue AT+CMEE=1 to have extended error code (+CME ERROR)
Automatically answer
Network Registration
Saves parameters in
Make an emergency
Communication loss
non-volatile memory
Receiving signal
Enter PIN code
Description
Receiving an
incoming call
Make a call
Checking
Hang up
strength
calls
call
GSM & GPRS Modem
AT+CREG?
AT+CSQ
ATA
ATD1234567;
ATD 112;
ATH
AT+CPIN=1234
ATS0?
ATS0=2
ATS0=0
AT&W
AT commands Modem response
www.rfsolutions.co.uk
CREG=<mode>,1
CREG=<mode>,2
CREG=<mode>,0
+CSQ: 20,0
RING
OK
OK
CME ERROR : 11
CME ERROR : 3
CME ERROR : 10
OK
NO CARRIER
OK
OK
+CME ERROR : 16
+CME ERROR : 3
002
OK
OK
OK
OK
©2007 REG No 277 4001, ENGLAND.
Modem registered to the network
Registration lost, re-registration attempt
Modem not registration on the network, no
registration attempt
The first parameter has to be at least 15 for normal
communication
An incoming call is waiting
Answer the call
Don’t forget the « ; » at the end for « voice » call
Communication established
PIN code not entered (with + CMEE = 1 mode)
AOC credit exceeded or a communication is already
established
Cannot read the SIM card
Don’t forget the « ; » at the end for « voice » call
PIN Code accepted
Incorrect PIN Code (with +CMEE = 1 mode)
PIN already entered (with +CMEE = 1 mode)
Sets the modem to answer after 2 rings
Resets the modem to no automatic answer
The configuration settings are stored
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