This week we will discuss what AT commands you can use with the SmartMax and why it is limited.

With the SmartMax every thing is controlled via the onboard processor, so when you type any AT command on the serial port the on board processor takes this command and responds back based on the module status, and for that we had to support the basic common function that any legacy device might send to the modem based on the fact that it is a serial modem.
However if you want to talk to the Module and send more serial commands you can do this via the Web Interface AT commands section or by accessing the module directly via the mini USB port.

Here is a summary of AT Commands that you can use on the SmartMax serial port:
Serial Interface Configuration: at+ipr, at+ifc, at&d, at&c, ats0, at&w
SMS Commands: at+cmgf, at+cmgs
IPStack Commands: at$$ipctop, at$$ipctos, at$$ipctcs,
Diagnostic Commands : ati, at$$rssi, at&v, at+creg, at$$reset