The example in ussd is not working. Not getting ussd response

[mwaaas]

This the error am gettings.

/Users/francis/PycharmProjects/python-gsmmodem/.venv/bin/python /Users/francis/PycharmProjects/python-gsmmodem/examples/ussd_demo.py Initializing modem... Sending USSD string: 1405*0702729654# Traceback (most recent call last): File "/Users/francis/PycharmProjects/python-gsmmodem/examples/ussd_demo.py", line 41, in main() File "/Users/francis/PycharmProjects/python-gsmmodem/examples/ussd_demo.py", line 30, in main response = modem.sendUssd(USSD_STRING) # response type: gsmmodem.modem.Ussd File "/Users/francis/PycharmProjects/python-gsmmodem/gsmmodem/modem.py", line 946, in sendUssd raise TimeoutException() gsmmodem.exceptions.TimeoutException: None

[menon92]

I have same problem. Do you get the solution of this problem

[mwaaas]

Yeah I managed, will find the solution I used then share it with you

[menon92]

could you please help me now. How can I solve this problem ? I am completely stuck with this problem @mwaaas

[mwaaas]

Here is the code that I used

!/usr/bin/env python

"""\ Demo: Simple USSD example

Simple demo app that initiates a USSD session, reads the string response and closes the session (if it wasn't closed by the network)

Note: for this to work, a valid USSD string for your network must be used. """

from future import print_function

import logging

PORT = '/dev/tty.HUAWEIMobile-Pcui' BAUDRATE = 115200 USSD_STRING = '1405*0703488092#' PIN = None # SIM card PIN (if any)

from gsmmodem.modem import GsmModem

def main(): print('Initializing modem...')

logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.DEBUG)

modem = GsmModem(PORT, BAUDRATE)
modem.connect(PIN)
modem.waitForNetworkCoverage(10)
print('Sending USSD string: {0}'.format(USSD_STRING))
response = modem.sendUssd(USSD_STRING, 30) # 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()

[mwaaas]

use this python-gsmmodem-new

pip install python-gsmmodem-new

[menon92]

Thanks for your reply. I try your code. In your code from future import print_function give me Import Error. for this I change your code like this. and this give me the same error. could you please help me.

#!/usr/bin/env python

"""
Demo: Simple USSD example

Simple demo app that initiates a USSD session, reads the string response and closes the session
(if it wasn't closed by the network)

Note: for this to work, a valid USSD string for your network must be used.
"""

#from future import print_function

import logging

#PORT = '/dev/tty.HUAWEIMobile-Pcui'
PORT = '/dev/ttyUSB0'
BAUDRATE = 115200
#USSD_STRING = '1405*0703488092#'
USSD_STRING = 'AA988C3602' # *124# = AA988C3602
PIN = None # SIM card PIN (if any)

from gsmmodem.modem import GsmModem

def main():
    print('Initializing modem...')
    #logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.DEBUG)
    modem = GsmModem(PORT, BAUDRATE)
    modem.connect(PIN)
    modem.waitForNetworkCoverage(10)
    print('Sending USSD string: {0}'.format(USSD_STRING))
    response = modem.sendUssd(USSD_STRING, 30) # 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()

if __name__ == '__main__':
    main()

Thanks @mwaaas

[menon92]

My modem port:

menon@menon-Inspiron-N4050:~$ ls -l /dev/ttyUSB*
crw-rw---- 1 root dialout 188, 0 May 20 08:50 /dev/ttyUSB0
crw-rw---- 1 root dialout 188, 1 May 20 08:47 /dev/ttyUSB1
crw-rw---- 1 root dialout 188, 2 May 20 10:16 /dev/ttyUSB2
lrwxrwxrwx 1 root root         7 May 20 08:47 /dev/ttyUSB_utps_diag -> ttyUSB1
lrwxrwxrwx 1 root root         7 May 20 08:47 /dev/ttyUSB_utps_modem -> ttyUSB0
lrwxrwxrwx 1 root root         7 May 20 08:47 /dev/ttyUSB_utps_pcui -> ttyUSB2
menon@menon-Inspiron-N4050:~$ 

[babca]

@menon92 set your PORT to dev/ttyUSB2. The TimeoutException is expected in this case. You can't catch incoming calls, USSDs and SMS messages with dev/ttyUSB0 port on Huawei modems, because this channel doesn't contain modem notifications.

I tested ussd_demo.py with my Huawei modem and it's working as expected: dev/ttyUSB2 => USSD working fine ✓ dev/ttyUSB0 => TimeoutException ✓

If your code still doesn't work, uncomment logging.basicConfig(... line and post here your console output.

[menon92]

when I set PORT to /dev/ttyUSB2 then output is :

Initializing modem...
INFO: Connecting to modem on port /dev/ttyUSB2 at 115200bps
DEBUG: write: ATZ
DEBUG: response: ['OK']
DEBUG: write: ATE0
DEBUG: response: ['ATE0\r', 'OK']
DEBUG: write: AT+CFUN?
DEBUG: response: ['+CFUN: 1', 'OK']
DEBUG: write: AT+CMEE=1
DEBUG: response: ['OK']
DEBUG: write: AT+CPIN?
DEBUG: response: ['+CPIN: READY', 'OK']
DEBUG: write: AT+CLAC
DEBUG: response: ['+CLAC:&C,&D,&E,&F,&S,&V,&W,E,I,L,M,Q,V,X,Z,T,P,\\Q,\\S,\\V,%V,D,A,H,O,S0,S2,S3,S4,S5,S6,S7,S8,S9,S10,S11,S30,S103,S104,+FCLASS,+ICF,+IFC,+IPR,+GMI,+GMM,+GMR,+GCAP,+GSN,+DR,+DS,+WS46,+CLAC,+CCLK,+CBST,+CRLP,+CV120,+CHSN,+CSSN,+CREG,+CGREG,+CFUN,+GCAP,+CSCS,+CSTA,+CR,+CEER,+CRC,+CMEE,+CGDCONT,+CGDSCONT,+CGTFT,+C', 'ERROR']
DEBUG: write: AT
DEBUG: response: ['OK']
DEBUG: write: AT^CVOICE=?
DEBUG: write: AT+VTS=?
DEBUG: write: AT^DTMF=?
DEBUG: write: AT^USSDMODE=?
DEBUG: write: AT+WIND=?
DEBUG: write: AT+ZPAS=?
DEBUG: write: AT+CSCS=?
DEBUG: write: AT+CNUM=?
DEBUG: write: AT+CGMI
Traceback (most recent call last):
  File "pygsm_modem_send_ussd.py", line 47, in <module>
    main()
  File "pygsm_modem_send_ussd.py", line 29, in main
    modem.connect(PIN)
  File "/usr/local/lib/python2.7/dist-packages/gsmmodem/modem.py", line 282, in connect
    if b'simcom' in self.manufacturer.lower() : #simcom modems support DTMF and don't support AT+CLAC
  File "/usr/local/lib/python2.7/dist-packages/gsmmodem/modem.py", line 524, in manufacturer
    return self.write('AT+CGMI')[0]
  File "/usr/local/lib/python2.7/dist-packages/gsmmodem/modem.py", line 470, in write
    responseLines = super(GsmModem, self).write(data + writeTerm, waitForResponse=waitForResponse, timeout=timeout, expectedResponseTermSeq=expectedResponseTermSeq)
  File "/usr/local/lib/python2.7/dist-packages/gsmmodem/serial_comms.py", line 133, in write
    self.serial.write(data)
  File "/usr/local/lib/python2.7/dist-packages/serial/serialposix.py", line 528, in write
    raise portNotOpenError
serial.serialutil.SerialException: Attempting to use a port that is not open

And when I set PORT to /dev/ttyUSB0 then output is :

Initializing modem...
INFO: Connecting to modem on port /dev/ttyUSB0 at 115200bps
DEBUG: write: ATZ
DEBUG: response: ['OK']
DEBUG: write: ATE0
DEBUG: response: ['ATE0\r', 'OK']
DEBUG: write: AT+CFUN?
DEBUG: response: ['+CFUN: 1', 'OK']
DEBUG: write: AT+CMEE=1
DEBUG: response: ['OK']
DEBUG: write: AT+CPIN?
DEBUG: response: ['+CPIN: READY', 'OK']
DEBUG: write: AT+CLAC
DEBUG: response: ['+CLAC:&C,&D,&E,&F,&S,&V,&W,E,I,L,M,Q,V,X,Z,T,P,\\Q,\\S,\\V,%V,D,A,H,O,S0,S2,S3,S4,S5,S6,S7,S8,S9,S10,S11,S30,S103,S104,+FCLASS,+ICF,+IFC,+IPR,+GMI,+GMM,+GMR,+GCAP,+GSN,+DR,+DS,+WS46,+CLAC,+CCLK,+CBST,+CRLP,+CV120,+CHSN,+CSSN,+CREG,+CGREG,+CFUN,+GCAP,+CSCS,+CSTA,+CR,+CEER,+CRC,+CMEE,+CGDCONT,+CGDSCONT,+CGTFT,+CGEQREQ,+CGEQMIN,+CGQREQ,+CGQMIN,+CGEQNEG,+CGEREP,+CGPADDR,+CGCLASS,+CGSMS,+CSMS,+CMGF,+CSAS,+CRES,+CSCA,+CSMP,+CSDH,+CSCB,+FDD,+FAR,+FCL,+FIT,+ES,+ESA,+CMOD,+CVHU,+CGDATA,+CSQ,+CBC,+CPAS,+CPIN,+CMEC,+CKPD,+CIND,+CMER,+CGATT,+CGACT,+CGCMOD,+CPBS,+CPBR,+CPBF,+CPBW,+CPMS,+CNMI,+CMGL,+CMGR,+CMGS,+CMSS,+CMGW,+CMGD,+CMGC,+CNMA,+CMMS,+FTS,+FRS,+FTH,+FRH,+FTM,+FRM,+CHUP,+CCFC,+CCUG,+COPS,+CLCK,+CPWD,+CUSD,+CAOC,+CACM,+CAMM,+CPUC,+CCWA,+CHLD,+CIMI,+CGMI,+CGMM,+CGMR,+CGSN,+CNUM,+CSIM,+CRSM,+CCLK,+CLVL,+CMUT,+CLCC,+COPN,+CPOL,+CPLS,+CTZR,+CTZU,+CLAC,+CLIP,+COLP,+CDIP,+CTFR,+CLIR,$QCSIMSTAT,$QCCNMI,$QCCLR,$QCDMG,$QCDMR,$QCDNSP,$QCDNSS,$QCTER,$QCSLOT,$QCPINSTAT,$QCPDPP,$QCPDPLT,$QCPWRDN,$QCDGEN,$BREW,$QCSYSMODE,^STSF,^STGI,^STGR,^IMSICHG,^USSDMODE,^SYSINFO,^SYSCFG,^SYSCONFIG,^HS,^DTMF,^CPBR,^CPBW,^HWVER,^HVER,^DSFLOWCLR,^DSFLOWQRY,^DSFLOWRPT,^SPN,^PORTSEL,^CPIN,^SN,^EARST,^CARDLOCK,^CARDUNLOCK,^ATRECORD,^CDUR,^BOOT,^FHVER,^CURC,^FREQLOCK,^FREQPREF,^HSDPA,^GLASTERR,^CARDMODE,^U2DIAG,^PAD,^RSTRIGGER,^PCSCINFO,^CQI,^GETPORTMODE,^CVOICE,^DDSETEX,^pcmrecord,^CMSR,^CMMT,^CMGI,^PCMBUFFER,^CSNR,^PNN,^OPL,^CPNN,^ADCTEMP,^RDCUST,^SETPID,^DIALMODE,^YJCX,^NDISDUP,^DNSP,^DNSS,^DHCP,^AUTHDATA,^CRPN,^ICCID,^FPLMN,^FPLMNCTRL,^NVMBN,^RXDIV,', 'OK']
DEBUG: write: AT^CVOICE=0
DEBUG: response: ['OK']
DEBUG: write: AT^USSDMODE=0
DEBUG: response: ['OK']
INFO: Loading Huawei call state update table
DEBUG: write: AT+COPS=3,0
DEBUG: response: ['OK']
DEBUG: write: AT+CMGF=0
DEBUG: response: ['OK']
DEBUG: write: AT+CSCA?
DEBUG: response: ['+CSCA: "+880150159999",145', 'OK']
DEBUG: write: AT+CSMP=49,167,0,0
DEBUG: response: ['OK']
DEBUG: write: AT+CSCA?
DEBUG: response: ['+CSCA: "+880150159999",145', 'OK']
DEBUG: write: AT+CPMS=?
DEBUG: response: ['+CPMS: ("ME","MT","SM","SR"),("ME","MT","SM","SR"),("ME","MT","SM","SR")', 'OK']
DEBUG: write: AT+CPMS="ME","ME","ME"
DEBUG: response: ['+CPMS: 0,23,0,23,0,23', 'OK']
DEBUG: write: AT+CNMI=2,1,0,2
DEBUG: response: ['OK']
DEBUG: write: AT+CLIP=1
DEBUG: response: ['OK']
DEBUG: write: AT+CRC=1
DEBUG: response: ['OK']
DEBUG: write: AT+CVHU=0
DEBUG: response: ['OK']
DEBUG: write: AT+CREG?
DEBUG: response: ['+CREG: 0,1', 'OK']
DEBUG: write: AT+CSQ
DEBUG: response: ['+CSQ: 6,99', 'OK']
Sending USSD string: AA584D3602
DEBUG: write: AT+CUSD=1,"AA584D3602",15
DEBUG: response: ['OK']
Traceback (most recent call last):
  File "pygsm_modem_send_ussd.py", line 47, in <module>
    main()
  File "pygsm_modem_send_ussd.py", line 32, in main
    response = modem.sendUssd(USSD_STRING, 30) # response type:
  File "/usr/local/lib/python2.7/dist-packages/gsmmodem/modem.py", line 958, in sendUssd
    raise TimeoutException()
gsmmodem.exceptions.TimeoutException: None

Thanks.

[babca]

serial.serialutil.SerialException: Attempting to use a port that is not open It seems your modem unexpectedly restarts itself? (Maybe a bug in the modem firmware?) It fails at simple CLAC command, the response is cut after ~300 characters.

Could you start gsmterm from tools/ folder? python gsmterm.py -r /dev/ttyUSB2 type AT+CLAC, Enter is the command working properly? (Press CTRL+] to exit.)

[menon92]

I run python gsmterm.py -r /dev/ttyUSB2 and it give me output:

Raw terminal connected to /dev/ttyUSB2 at 115200bps.
Press CTRL+] to exit.

ERROR
AT+CLAC
ERROR
AT+CLAC
+CLAC:&C,&D,&E,&F,&S,&V,&W,E,I,L,M,Q,V,X,Z,T,P,\Q,\S,\V,%V,D,A,H,O,S0,S2,S3,S4,S5,S6,S7,S8,S9,S10,S11,S30,S103,S104,+FCLASS,+ICF,+IFC,+IPR,+GMI,+GMM,+GMR,+GCAP,+GSN,+DR,+DS,+WS46,+CLAC,+CCLK,+CBST,+CRLP,+CV120,+CHSN,+CS
+CPMS: 0,50,0,50,0,50
OK
AT+CLAC
Done.

I think AT+CLAC command sometimes works and sometimes not working.

If there is problem with modem firmware or modem unexpectedly restarts In that case what can i do ? should i try a new modem with the same code ? or anything else i can do .

Thanks @babca

[babca]

This seems to be related to the modem not to python-gsmmodem library. Please try it again and type ATZ command before AT+CLAC command. Both should output OK on the last line, every time. I don't think it will help, but you can also try to lower baudrate: python gsmterm.py -r /dev/ttyUSB2 -b 9600

Which modem do you use?

Try a different modem if you can. Huawei E372 and E160 are working fine with ussd_demo.py.