Re: Randomly SMS sent passes or fails

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

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Hi Denis and ofono guys,

I hope you enjoy Easter celebration !

>
> Actually, this is peculiar, the CRSM command is not failing and the
> result is fine. Just that it is empty. Perhaps you need to quirk the
> CRSM behavior in this case. Does adding your modem to the list in
> at_sim_read_info()
>
> /* Maximum possible length */
> len += sprintf(buf + len, ",0,0,255");
> break;
>
> make it work properly?

I added the quirk as above and Yes ! I've got values now:

-------------------------------------
ofonod[11230]: Data: > AT+CRSM=178,28614,1,4,8\r
ofonod[11230]: Data: < \r\n+CRSM: 144,0,"62F2100000FFFE01"\r\n\r\nOK\r\n
ofonod[11230]: drivers/atmodem/sim.c:at_crsm_read_cb() crsm_read_cb: 90, 
00, 8
-------------------------------------

and SMS work ! Actually, It works if GPRS isn't Active... If I enable 
GPRS, It fails with message CMS ERROR: 500 (Unknown error):

-------------------------------------
ofonod[11230]: Data: > AT+CMGS=49\r
ofonod[11230]: Data: < \r\n>
ofonod[11230]: Data: > 
0011000B911487584414F70000A728C8329BFD0699E5EF368858AED3C76866D84D06DDD3743468DA9C82DEF6B21C74844AA7<CtrlZ>
ofonod[11230]: Data: < \r\n
ofonod[11230]: Data: < \r\n+CMS ERROR: 500\r\n
ofonod[11230]: src/sms.c:tx_finished() tx_finished 0xfecf8
ofonod[11230]: src/sms.c:sms_tx_queue_remove_entry() 0xfecf8
-------------------------------------

So, I guess when I enable GPRS, my GSM module wants to send SMS over 
GPRS... And maybe, I can't because ofono always fails on provisioning:

-------------------------------------
ofonod[7135]: src/gprs-provision.c:__ofono_gprs_provision_get_settings() 
Calling provisioning plugin 'Provisioning'
ofonod[7135]: plugins/provision.c:provision_get_settings() Provisioning 
for MCC 262, MNC 01, SPN 'Telekom.de'
ofonod[7135]: 
/usr/share/mobile-broadband-provider-info/serviceproviders.xml:1562 
Duplicate context detected
ofonod[7135]: Provisioning failed
-------------------------------------

I read the source code which can explain the issue. I guess the problem 
isn't really a problem. There 2 apn tags in serviceproviders.xml for 
T-Mobile. This is why I've got "Duplicate context detected" message.

As I understand, the provision plugin wants only 1 apn (allow_duplicates 
is FALSE) by MCC/MNC. Why ? There are many others operators (according 
to serviceproviders.xml) who have more than 1 apn. So, for these, the 
provisioning always fails ?

Maybe I must write an another provision plugin which supports multiples 
apn entries ? It's tricky to implement this ?

Regards,
Anthony.