Read USSD Response Python GsmModem

from __future__ import print_function
import logging
PORT = 'COM11'
BAUDRATE = 921600
USSD_STRING = '*111#'
PIN = None # SIM card PIN (if any)

from gsmmodem.modem import GsmModem

def main():
    print('Initializing modem...')
    modem = GsmModem(PORT, BAUDRATE)
    modem.connect(PIN)
    modem.waitForNetworkCoverage(10)
    print('Sending USSD string: {0}'.format(USSD_STRING))
    response = modem.sendUssd(USSD_STRING) # response type: gsmmodem.modem.Ussd
    print('USSD reply received: {0}'.format(response.message))
    if response.sessionActive:
        print('Closing USSD session.')
        # At this point, you could also reply to the USSD message by using response.reply()
        response.cancel()
    else:
        print('USSD session was ended by network.')
    modem.close()

if __name__ == '__main__':
    main()