Denis Khabarov

import base64

f = open('/dev/ttyACM1','w+a')
f.write('AT+CUSD=1,"*102#",15\r\n')
while True:
        line = f.readline()
        if len(line) == 0:
                continue
        else:
                if line.startswith('+CUSD'):
                        print  base64.b16decode(line[10:line.rfind('"')]).decode('utf-16-be')
                        break
                else:
                        print line