In this tutorial I will walk through the steps of sending and receiving text message (SMS) from your Ubuntu laptop using a package called minicom. We also need a modem which dials into the telco provider. For this I use a USB Wifi modem.
Firstly connect the USB Wifi modem to a USB port of your laptop or PC. Fire up your mnicom program. If it was not installed, you can easily do so by typing:
#apt-get install minicom
To launch minicom, type:
root@ubuntu:~/script# minicom -m
Welcome to minicom 2.3
OPTIONS: I18n
Port /dev/ttyUSB1
Press ESC,Z for help on special keys
AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q0
OK
You will get a OK prompt, which means that your minicom recognizes the USB Wifi modem. You can configure the device when in OK prompt using a combination of keys i.e. Press Ctrl and A together and release.Then press Z for the menu. In the menu you should press O to configure minicom.
One of the important settings is the port settings. In my case it is set at /dev/ttyUSB1. In case you need to terminal into a Ciso router, you can try /dev/ttyS0. To do this press Ctrl and A together and release.Then press Z for the menu. In the menu you should press O to configure minicom. Select Serial Port setup
Set the Bps as 115200 8N1
Now let’s send a SMS to your own mobile phone. At the OK prompt in minicom type:
Send a message to your handphone
at+cmgf=1
OK
at+cmgw=”some_mobile_number”
For example,
at+cmgw=”12345678″
> its fun
>
Press Ctrl+Z when you finish typing your message. In my case I don’t need to type the country code +91
+CMGW: 1
OK
at+cmss=1
+CMSS: 0
OK
My handphone received the SMS
To read the SMS,
at+cmgl=”all”
+CMGL: 1,”STO SENT”,”mobilenumber”,,
its fun
+CMGL: 0,”STO UNSENT”,”+mobilenumber”,,
hello !!
OK
at+cmgr=0
+CMGR: “STO UNSENT”,”+mobilenumber”,
hello !!
OK
Making calls from Modem to Mobile Pphone
ATDmobilenumber;
Reading messages on your Wifi Modem SIM Card
Read all the messages
at+cmgl=”all”
+CMGL: 0,”REC READ”,”+91mobilenumber”,,”10/06/20,19:43:29+32″
It works!
+CMGL: 1,”REC UNREAD”,”+91mobilenumber”,,”10/06/21,19:03:10+32″
chill
The latest SMS is unread
Read the SMS
at+cmgr=1
+CMGR: “REC READ”,”+91mobilenumber”,,”10/06/21,19:03:10+32″
chill
OK
Now the status is read
at+cmgl=”all”
+CMGL: 0,”REC READ”,”+91mobilenumber”,,”10/06/20,19:43:29+32″
It works!
+CMGL: 1,”REC READ”,”+91mobilenumber”,,”10/06/21,19:03:10+32″
chill
OK
