User guide

EG_GenPro30e_1006_UG_002_UK Page 24 / 37
Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCO&GENER reserves the right to make any modifications.
5.7 Main AT commands (HAYES)
The table hereunder shows the main AT commands necessary for the control of the modem.
Other AT commands are available, see the "Commands List" document of ERCO & GENER.
Table: Main AT commands used with the modem.
(1*) with +CMEE=1. The command AT+CMEE=1 allows the display of extended error codes; it is possible to
save it with the command AT&W.
(2*) with +CRC=1. The command AT+CRC=1 allows in the case of an incoming call to display an
extended message that indicates the canal called. This message corresponds to the type of number called:
voice, data or fax, it is possible to save it with the command AT&W.
Examples:
If the number VOICE is called, the modem replies: +CRING : VOICE
If the number DATA is called, the modem replies: +CRING : REL ASYNC
If the number FAX is called, the modem replies: +CRING : FAX
Description AT Command Response Interpretation
AT+CPIN="xxxx"
OK
PIN code accepted
(xxxx = PIN code )
+CME ERROR: 16
PIN code incorrect (1*)
Enter the PIN code
+CME ERROR: 3
PIN code already entered (1*)
AT+CREG?
+CREG : 0,1
The modem is attached in GSM to
the local operator.
+CREG : 0,5
The modem is attached in GSM to
the roaming operator.
+CREG : 0,2
The modem is searching for a
network operator.
Verification of
registration on the
network
+CREG : 0,0 or 0,3
The modem is not recognized by the
network.
Reception of an
incoming call (2*)
ATA
OK
Reply to the call
ATD< telephone
number >;
OK
Communication established
+CME ERROR: 11
PIN code not entered
Make a voice call
( the ; at the end of the
sequence is important; it
allows to make a voice
call)
+CME ERROR: 3
The credit has run out or a
communication has already been
established.
Make an emergency
call (112)
ATD112;
OK
Communication established
Lost communication
NO CARRIER
Hang-up ATH
OK