Sending and reading CDMA Phone's SMSs through Minicom

In my last Blog post, I wrote about how I used Minicom to call phones through a Chinese PCMCIA Express CDMA modem called SEP 6000. As I could now receive and send calls, I only wanted to know how to send and read SMSs received.

By the way, the AT command for accepting voice call is AT$QCCAV which is a Qualcomm specific AT Command. AT+CHV will hang up the call.

I already had the text version of the commands from reading the srt.exe in Vim editor. So, all I needed to do was to find the commands for sending and receiving SMSs. First I googled around, until I reached two links, one in Chinese and one in Indonesian . The Indonesian link is very helpful.

After I fired up Minicom and connected to the phone, I send AT$MTCNT and got the reply 3,3. This means that there is 3 SMSs and I have read none. Now to read the SMS. First I had to do

AT$SMSTYPE
1
OK

I need to change the SMSTYPE to 0 if I want to read the SMS
AT$SMSTYPE=0
OK

Then to read the first SMS

AT$SMSMT1
20090522215437,403,4098,0,"SMS Message"

It tells me the date and time of the Message and gives me human readable SMS Message.

Now to send SMS Message,
AT$SMSMO00=Number,,4098,4,0,0,0,"Message"

Number is the number that I am sending the SMS to and Message is the SMS message.
After some time, I get
$SMSOACK0
which means that the SMS has been sent successfully.

Next blog, how to check the signal strength through Minicom.