CONFIGURING AND COMMUNICATING WITH YOUR DEVICE
MultiConnect
®
Cell MTC-MNG6 User Guide 23
Registering the Device on a Cellular Network
When configured with AT+COPS=0 the device automatically attempts to register with a carrier network. With the
SIM and device properly configured and good reception network registration takes less than a minute. Otherwise,
it may take more than 5 minutes.
To determine the device’s registration status, use one of the following three AT commands. If any return n,1 or n,5
then the device registered with the network automatically:
AT+CREG?
AT+CEREG?
AT+CGREG?
Return Values
n,0 = Time-out or not searching
n,1 = Registered
n,2 = Searching
n,3 = Carrier denied connection (contact carrier for guidance)
n,5 = Registered, roaming
If the device has not registered with the network, wait a few minutes before issuing one of the AT+C*REG
commands again.
Examples
AT+CREG?
+CREG: 0,1
OK
AT+CEREG?
+CEREG: 0,1
OK
AT+CGREG?
+CGREG: 0,1
OK
Verifying Signal Strength
To verify the device signal strength, enter:
AT+CSQ
The command indicates signal quality, in the form:
+CSQ: <rssi>,<sq>
Where:
<rssi> Received signal strength indication.