串行端口-无法设置服务中心SMSC地址-AT + CSCA？ 返回错误，smsd返回初始化错误

Question

I almost spent a week trying to configure a serial port in order to be able to use it for sending SMS. Let me explain my situation: I use a notebook with Ubuntu 16.04 LTS, the machine has an integrated GSM modem, the serial port is /dev/ttyACM0 , here is some wvdialconf output:

$ sudo wvdialconf
...
ttyACM0<*1>: Modem Identifier: ATI -- Manufacturer: SAMSUNG ELECTRONICS CORPORATION
...
ttyACM0<*1>: Max speed is 460800; that should be safe.

Found an USB modem on /dev/ttyACM0.
Modem configuration written to /etc/wvdial.conf.
ttyACM0<Info>: Speed 460800; init "ATQ0 V1 E1 S0=0 &C1 &D2"

I have tried many different tools in order to be able to send an SMS:

• Tried this PHP script https://gonzalo123.com/2011/03/21/howto-sendread-smss-using-a-gsm-modem-at-commands-and-php/ (didn't work, the script hangs and I doesn't return any output);

• smstools and smsd , installed with apt-get install smstools : I try to put an SMS file into /var/spool/sms/outgoing :

   To: xxxxxxxxxxxx This is a test message. 

  the SMS file is collected from /var/spool/sms/outgoing by the smsd daemon, but then the daemon places it into /var/spool/sms/failed and if I look at the file, I see:

  To: xxxxxxxxxxxx Modem: GSM1 IMSI: Fail_reason: Modem initialization failed Failed: 16-07-03 17:10:03

  This is a test message.

  This is the section inside /etc/smsd.conf for the GSM1 device:

  [GSM1] init = "ATQ0 V1 E1 S0=0 &C1 &D2" device = /dev/ttyACM0 incoming = yes pin = xxxx baudrate = 460800 smsc = yyyyyyyyyyyy

  I also tried to specify the init command without the " quotes, still get the same error. I think the init command should be the one wvdialconf outputs me (see above), so why isn't it working?

• Also, I tried using cu -l /dev/ttyACM0 and type raw AT commands, but I cannot set the SMSC address, cause when I type AT+CSCA? it outputs me ERROR :

  $ cu -l /dev/ttyACM0 ... AT+CSCA? ERROR

  AT+CSCA="yyyyyyyyyyyy" ERROR

Can someone help me fix this issues I am facing? Did you experience the same errors as I?

Thanks for the attention.

Answer 1

You can get more specific error responses than just ERROR by running

AT+CMEE=2

See chapter 9, Mobile Termination errors in 27.007 for more details on the command and the error codes.