A6 GSM/GPRS Module Autoresponder (Auto Reply) Sample Code In Python

test.py

#!/usr/bin/env python
import serial
import time
import re

if __name__ == "__main__":
    ser = serial.Serial('/dev/cu.SLAB_USBtoUART', 9600, timeout=1)
    isOk = False

    try:
        while True:
            if not isOk:
                ser.write(b"AT+CMGF=1\r\n")

            data = ser.readline()

            if not isOk:
                if data.strip() == "OK":
                    isOk = True

            if isOk:
                if data.strip() != "":
                    print "%s\n" % data.strip()

                    if re.search('^.*\+CMT', data.strip()):
                        number = data.strip().replace("+CMT: ", "").split(",")[0].replace('"', '').replace("+63", "0")
                        ser.write(b'AT+CMGS="%s"\r\n' % number)
                        time.sleep(1)
                        ser.write(b'I am busy right now. This is an automated reply.')
                        ser.write(b'\x1a\r\n')
                        
            time.sleep(1)

    except KeyboardInterrupt:
        ser.close()