Re: Randomly SMS sent passes or fails

[Viallard Anthony <viallard@syscom-instruments.com>]

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On 06. 03. 13 10:23, Viallard Anthony wrote:
> On 05. 03. 13 21:43, Denis Kenzior wrote:
>
>>
>> Nope, can't really help here; perhaps if you shared a detailed AT log?
>>
>> Regards,
>> -Denis
>
> I tried to find some information about the operator and SMS/GPRS. I
> didn't find documentation in my fluent language. I will ask to a german
> guy. Maybe, there are a AT command to know wether operator supports this ?
>
> Otherwise, I try to find documentation about this amazing SMS over GPRS
> feature. From what I read, there an AT command to select the behavior. I
> guess it's the AT+CGSMS command. Ofono set CGSMS to 3 :
>
> AT+CGSMS=3
>
>  From the modem documentation, I see :
>
> A numeric parameter which indicates the service or service preference to
> be used
> 0 – GPRS(value is not really supported and is internally mapped to 2)
> 1 – circuit switched(value is not really supported and is internally
> mapped to 3)
> 2 – GPRS preferred (use circuit switched if GPRS not available)
> 3 – circuit switched preferred (use GPRS if circuit switched not available)
>
> Maybe the "circuit switched" has got some troubles on the operator
> network and as I disabled GPRS, the SMS sending failed most of the time ?
>
> There also the command AT+CSMS :
>
> +CSMS: 1,1,1
>
> The first 1 tells the "SMS at command is compatible with GSM phase 2+.".
> Perhaps, the thing has an impact about the issue ...

Any comments ? :(

Before, I tested with 1.6.

And, today, I tried with 1.12.

And, I've got some troubles at modem power up... During the 3 first 
start, ofono was blocked after sending a command. Here 2 pastes :

------------------------------
[...]
ofonod[13400]: drivers/atmodem/cbs.c:at_cbs_set_topics()
ofonod[13400]: Data: > AT+CSCB=0,"4352-4356"\r
ofonod[13400]: Data: < \r\nOK\r\n
ofonod[13400]: Data: > AT+CRSM=192,28437\r
ofonod[13400]: Data: < \r\n+CRSM: 106,130,""\r\n\r\nOK\r\n
ofonod[13400]: Data: > AT+CRSM=192,28436\r
------------------------------

------------------------------
[...]
ofonod[10387]: src/network.c:ofono_netreg_status_notify() /simcom_0 
status 1 tech -1
ofonod[10387]: src/cbs.c:cbs_location_changed() 1, -1, -1, -1, (null)(null)
ofonod[10387]: Data: > AT+CRSM=192,28480\r
ofonod[10387]: Data: < \r\n+CRSM: 144,0,""\r\n\r\nOK\r\n
ofonod[10387]: drivers/atmodem/sim.c:at_crsm_info_cb() crsm_info_cb: 90, 
00, 0
ofonod[10387]: Data: > AT+CMGF=?\r
------------------------------

As you can see, It's not always at the same moment. After that, I can't 
send AT command anymore, the modem seems to be locked.

I try to debug this and found the CMUX and CMUXSRVPORT ports. I can have 
a DIAG port, so, I try to configure it. I stopped ofono, the modem and 
sent these commands :

------------------------------
AT+CMUXSRVPORT=0, 0
AT+CMUXSRVPORT=1, 5
AT+CMUXSRVPORT=2, 1
AT+CMUXSRVPORT=3, 1

+CMUX=0
------------------------------

------------------------------
AT+CMUXSRVPORT
--------------
< port >: virtual com port
0 – 3 currently support 4 virtual com ports index from 0 to 3

< service >: valid service
0 – DIAG Service
1 – DATA(MODEM) Service
5 – NMEA Service
------------------------------

And now, each time I start ofono and power up the modem, it works. No 
lock. Hum, I'm disapointed. I didn't think theses commands could fix the 
problem. And, no messages in diag or NMEA tty. Hum... And moreover, now 
all SMS I send are received. No failure. So good news, but, I'm troubled.

After grepping on ofono source, I see some driver plugins do a CMUX set 
(calipso, phonesim). Maybe, I need to execute a CMUX set ??? It can be 
important ?

Nevertheless, I don't understand why I have problems with this T-Mobile 
SIM card and not with Vodafone for example...

Regards,
Anthony.