Installation guide

Rev 1.1 9/22/14 35
Getting Started
Communicating with the
USR3500
Feature/Function
AT Command
Response
Description
Initiate a call
ATD<phone
number>;
(Do not forget the « ;
» at the end for
« voice » call)
OK
Communication established.
+CME ERROR: 11
PIN code not entered (with +CMEE =
1 mode*).
+CME ERROR: 3
AOC credit exceeded or
communications is already
established.
Hang up
ATH
OK
Communication has
been lost
NO CARRIER
Store the parameters
in EEPROM
AT&W
OK
The configuration settings are stored
in EEPROM (non-volatile memory).
Start Courier M2M
application
AT+WOPEN=1
OK
* The command AT+CMEE=1 switches to a mode that enables a more complete error diagnostic.
6.11. IP Data Connection
Enter AT+WOPEN=1 to start the Courier M2M application. A startup banner will display.
Use AT+WOPEN=0 to stop the application.
Lib Version 1.9.1
Courier M2M Wireless Device
Application Started
To use IP data services, you need to configure an APN. Your cellular account needs to
have data services, and the cellular provider must provide you with an APN string.
Example: Enter AT$CGDCONT=1,”m2m.apn.com” to set the APN.
Note: The APN string: “m2m.apn.com” is a sample. Do not use.
Use AT+CGREG? to verify GPRS registration.
AT+CGREG?
+CGREG: 0,1
OK
A response with 0,1 indicates that your device is registered on the GPRS network. A
response of 0,0 would indicate not registered. Once you are registered, Courier M2M
will automatically activate a PDP context. Enter AT$IP to verify the device’s IP address.
AT$IP
$IP: "<deviceID>",0,"203.0.113.1"
OK
Refer to the Courier M2M Application Guide at http://www.usr.com/support/3500 for
more information regarding data connections.