Re: communication freeze after send sms

Cyrille Giquello <[email protected]>
Newsgroups gmane.linux.drivers.gammu
Organization Artefacts
Message-ID <[email protected]>
Thanks Gilberto,

I initially posted 2 urls for details.

Here an example:

$ gammu --identify
   Device               : /dev/ttyACM0
   Manufacturer         : Broadcom
   Model                : unknown (GT-S5360)
   Firmware             : BCM21553_Modem_SI1220.2_V2.4

$ sudo picocom /dev/ttyACM0
  ...
AT
OK
AT+CMGF=1
OK
AT+CMGS=06xxxxxxxx
 > coucou
ctrl+z

After "ctrl+z" gammu infinitly waiting for netwok response ... I do a 
crtl+c to get back the shell. Nothing append.
But when I unplug the phone, Hop! The sms goes on the air and arrived in 
the destination phone.
So SMS send works, but not like attended, and it's not usable ;-(

The only idea I got, but perhaps it's a wrong way :

Because of the unplug phone behavior I think about that the modem is 
waiting for a state change on a pin, like the DCD (Data Carrier Detect) 
that the SMS specification talk about for +CMGS command:
http://www.etsi.org/deliver/etsi_gts/07/0705/05.03.00_60/gsmts_0705v050300p.pdf
     page 56
         - the DCD signal shall be in ON state while text is entered

I had a read in gammu 1.3.7 source code and found nothing about that.

Thanks again
Cyrille.

Le 03/04/2016 17:40, gilberto dos santos alves a écrit :
> please post exactly sms command are you using. please shadow sensible 
> information.
> thanks.
>
>
> 2016-04-03 10:37 GMT-03:00 Cyrille Giquello <[email protected] 
> <mailto:[email protected]>>:
>
>     Hi,
>     thanks for your answer, but the problem is not with characters or
>     encoding. For testing I only use one simple word like "test" or
>     "coucou".
>     I'd tested with gammu and picocom.
>
>     Cheers
>     Cyrille.
>
>
>     Le 03/04/2016 04:41, gilberto dos santos alves a écrit :
>>     hi. if you look carefully at this mailing list you will find same
>>     problem that you describe.
>>     look about characters on bash:
>>     ' apostrofe or single quote
>>     " double quote
>>     ` acent acute  in portuguese we say crase
>>     ´ acent acute in portuguese we say grave
>>
>>     when you use a bash script some of these are special meaning like
>>     used on mysql database, like used on rst files used for documents.
>>
>>     try manualy send a sms using a terminal (prefer using utf8 encode
>>     or latin1 encode)
>>
>>     using gammu manual or examples from this mailinglist.
>>
>>     use your nokia with gammu.
>>
>>
>>     2016-04-02 16:59 GMT-03:00 Cyrille Giquello <[email protected]
>>     <mailto:[email protected]>>:
>>
>>         Hi,
>>
>>         For 2 days I try to send sms but at the end of the send sms
>>         process the
>>         communcation freeze, and the sms goes in the air only after cable
>>         unpluged. Nothing found on Internet about this diagnostic.
>>
>>         I wrote more details here:
>>         on a gammu closed issue:
>>         https://github.com/gammu/gammu/issues/204
>>         then at stackoverflow:
>>         http://stackoverflow.com/questions/36371993/serial-communication-freeze-at-sms-send-gammu-picocom-on-linux
>>
>>         I did tests with a Raspberry Pi 1 running "Raspbian", a
>>         laptop running
>>         "Ubuntu 14.04 LTS" and phones "Samsumg Galaxy Y (Broadcom
>>         GT-S5360)" and
>>         "Nokia 6303i classic". The problem occurs with each couple of
>>         hardware.
>>
>>         AT commands work fine, the problem occurs at the end of sms send
>>         process, after the crtl+z : the communication is freezed
>>         until I do a
>>         ctrl+c or a kill. And the writed sms goes on the air when I
>>         unplug the
>>         phone ; so that mean the communication was fine, but not
>>         finished.
>>
>>         I lost lost lost.
>>
>>         Thanks for reading
>>         Cyrille.
>>
>>         --
>>
>>            Cyrille Giquello - 06 32 33 02 18 - [email protected]
>>         <mailto:[email protected]> - 37000 Tours
>>
>>           (¯`·._.·[   Coopérateur @ Artefacts - http://artefacts.coop
>>          ]·._.·´¯)
>>         ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø¸¸,ø¤º°`°º¤ø¸¸,ø¤º°`°º¤ø
>>
>>
>>         ------------------------------------------------------------------------------
>>         Transform Data into Opportunity.
>>         Accelerate data analysis in your applications with
>>         Intel Data Analytics Acceleration Library.
>>         Click to learn more.
>>         http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140
>>         _______________________________________________
>>         Gammu-users mailing list -
>>         https://lists.sourceforge.net/lists/listinfo/gammu-users
>>
>>
>>
>>
>>     -- 
>>     gilberto dos santos alves
>>     +55(11)9-8646-5049
>>     sao paulo - sp - brasil
>>
>>
>>
>>
>>
>>
>>     ------------------------------------------------------------------------------
>>     Transform Data into Opportunity.
>>     Accelerate data analysis in your applications with
>>     Intel Data Analytics Acceleration Library.
>>     Click to learn more.
>>     http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140
>>
>>
>>     _______________________________________________
>>     Gammu-users mailing list -https://lists.sourceforge.net/lists/listinfo/gammu-users
>
>     -- 
>
>        Cyrille Giquello - 06 32 33 02 18 [email protected] <mailto:[email protected]>  - 37000 Tours
>
>       (¯`·._.·[   Coopérateur @ Artefacts -http://artefacts.coop    ]·._.·´¯)
>     ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø¸¸,ø¤º°`°º¤ø¸¸,ø¤º°`°º¤ø
>
>
>     ------------------------------------------------------------------------------
>     Transform Data into Opportunity.
>     Accelerate data analysis in your applications with
>     Intel Data Analytics Acceleration Library.
>     Click to learn more.
>     http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140
>     _______________________________________________
>     Gammu-users mailing list -
>     https://lists.sourceforge.net/lists/listinfo/gammu-users
>
>
>
>
> -- 
> gilberto dos santos alves
> +55(11)9-8646-5049
> sao paulo - sp - brasil
>
>
>
>
>
>
> ------------------------------------------------------------------------------
> Transform Data into Opportunity.
> Accelerate data analysis in your applications with
> Intel Data Analytics Acceleration Library.
> Click to learn more.
> http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140
>
>
> _______________________________________________
> Gammu-users mailing list - https://lists.sourceforge.net/lists/listinfo/gammu-users

-- 

   Cyrille Giquello - 06 32 33 02 18 - [email protected] - 37000 Tours

  (¯`·._.·[   Coopérateur @ Artefacts - http://artefacts.coop   ]·._.·´¯)
ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø¸¸,ø¤º°`°º¤ø¸¸,ø¤º°`°º¤ø

------------------------------------------------------------------------------
Transform Data into Opportunity.
Accelerate data analysis in your applications with
Intel Data Analytics Acceleration Library.
Click to learn more.
http://pubads.g.doubleclick.net/gampad/clk?id=278785471&iu=/4140

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