Erco&Gener GENPRO 40E R2, User Manual

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EG_GenPro40e-R2_1006_UG_001_UK.doc Page 37 / 57
Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCOGENER reserves the right to make any modifications.
Dct_427_02
5.7.1 On the GSM network
1. Using a communication software like HyperTerminal, enter the following AT command:
AT+CREG?
to
check the registration status on the network. The response is with the following format:
+CREG : <mode>, <stat>
with:
<Mode>
= configuration of registration message not solicited,
<Stat>
= registration status.
2. Check the registration status according to the value given in the table below.
Table 10 : CREG on GSM network
Command Response Interpretation
AT+CREG?
+CREG : 0,0
or
0,3
Modem not recognized by the network.
+CREG : 0,2
Modem searching for a network operator.
+CREG : 0,1
Modem attached in GSM to the local operator.
+CREG : 0,5
Modem attached in GSM to the roaming operator.
The message "ERROR" is sent if there is no SIM card or if it was not activated (PIN code not
entered).
If the modem is not registered, check:
- the connection between the modem and the antenna
- the reception level of the signal (cf. § 5.5 Checking the quality
For more information about the AT commands, see the document "
4118014 AirPrime EM73xx-MC73xx AT
Command Reference
".