are registered and on your home network (same network as your data plan) and a 5
indicates that you are registered, but roaming on a different network.
Therefore, you will likely see one of the following:
Command:
AT+CEREG?
Response:
+CEREG: 0,1
//Registered, on home network
Command:
AT+CEREG?
Response:
+CEREG: 0,5
//Registered, roaming
If you are not registered, the value of
<status>
will either be a 0, 2, 3. As stated above,
network registration typically occurs automatically, but in some instances the modem needs to
be compelled to register on the network. If this is the case for you, please enter the command
below.
b. Attach modem to the network:
Command:
AT+CGATT=1
Response:
OK
If you would like to know the network technology (2G, 3G, 4G LTE) of your current connection,
or you are roaming and you would like to know which network you are roaming on, enter the
command below.
c. Query network technology and carrier:
Command:
AT+COPS?
Response:
+COPS: <mode>,<format>,<oper>,<Act>
You may ignore the values returned for
<mode>
and
<format>
. The
<oper>
parameter is your network operator, which is another name for the cellular carrier. The
<Act>
parameter is your access technology selected, which will be either
<Act>
=0
for
GSM (2G),
<Act>
=8
for LTE Cat M1, or
<Act>
=9
for LTE Cat NB1.
Example
:
Please see the example below for further clarification.
Command:
AT+COPS?
Response:
+COPS: 0,0,"Verizon Wireless",8
3.5.6. Activating a PDP Context
If you set up the PDP context, checked your network signal strength, and confirmed network
registration, you are ready to activate the PDP context.
a. Activate PDP context:
PN 1002152 REV A
© NimbeLink Corp. 2019. All rights reserved.
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