Prompt Title: Send SMS from Modem

To send an SMS from a modem in Windows Terminal, you can use AT commands. AT commands are a standard set of instructions used to communicate with modems and other telecommunication devices.

Here are the steps to send an SMS from a modem in Windows Terminal:

1. Connect the modem to your computer and ensure that it is properly recognized and installed. You may need to install modem drivers if they are not already installed.

2. Open the Windows Terminal or Command Prompt by pressing Win + R and typing "cmd" or "cmd.exe" in the Run dialog box.

3. In the terminal window, type the following command to establish a connection with the modem:

   arduinoCopy code
   MODE COMX: baud,parity,data-bits,stop-bits
   

   Replace "COMX" with the actual COM port number of your modem. For example, if your modem is connected to COM3, you would use:

   yamlCopy code
   MODE COM3: 9600,n,8,1
   

   This command sets the communication parameters, such as baud rate, parity, data bits, and stop bits.

4. Once the connection is established, you can use AT commands to send the SMS. Here's an example command to send an SMS:

   bashCopy code
   echo "AT+CMGF=1" > COMX
   echo 'AT+CMGS="recipient_number"' > COMX
   echo "Your message here" > COMX
   echo [Ctrl+Z] > COMX
   

   Replace "COMX" with the actual COM port number of your modem, and "recipient_number" with the phone number of the recipient (including the country code).

   The first command (AT+CMGF=1) sets the SMS text mode. The second command (AT+CMGS="recipient_number") specifies the recipient's phone number. The third command (Your message here) is the actual text message you want to send. Finally, pressing [Ctrl+Z] (ASCII code 26) sends the message.

5. After entering the commands, you should see a response indicating whether the message was sent successfully or if there was an error. You may also receive a delivery report if the modem supports it.

Please note that the steps mentioned above assume you have a compatible modem and the necessary permissions to send SMS messages. The exact AT commands and their syntax may vary depending on the modem model and manufacturer. Consult your modem's documentation for specific instructions and supported commands.