It will display a screen similar to the following. To configure minicom to access modem, do the following: # minicom -sĬhoose the “Serial port setup” and press “Enter”. cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters usbcore: registered new interface driver cdc_acm cdc_acm 1-1.3:1.1: ttyACM0: USB ACM device In my case the modem got detected as /dev/ttyACM0. Once the device is connected, you will see output similar to the following using dmesg. In my case, I’ve connected my “Nokia 2700” via data cable to my linux PC.
# apt-get install minicom Configuring minicom to interface with the modemīefore configuring minicom, we need to connect the modem to the linux system. Using minicom we can send AT commands to the modem to get information about its features. Minicom is a linux equivalent to the HyperTerminal utility in Microsoft Operating Systems. Minicom is a tool which provides an interface for communicating with devices that are connected to serial ports. In-order to send AT commands to modems, we need an interface. In this tutorial, I’m going to show examples using my “Nokia 2700” mobile phone which has a inbuilt GSM/GPRS modem. Note that not all modems will support all the AT commands. Get the information about signal strength and battery strength.Get basic information about the subscriber.Here are few list of tasks which can be done by using the AT commands. Task which can be done by using AT commands All GSM/GPRS uses the extended commands for SMS/DATA services. Extended commands are AT commands that start with a “+”. Many modems today including dial-up, wireless, GSM/GPRS modems use these AT command set for communication.īasic commands are AT commands that do not start with “+”. These commands come from Hayes at commands that were used by the Hayes smart modems in 1980’s. AT commands are instructions that are used to control modems.