Re: Incoming sms problem on Motorola Droid 4

[Marcel Holtmann <marcel@holtmann.org>]

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Hi Pavel,

>> I have problems with incoming SMS. ofono tries to use +CNMI=1,2,2,1,0
>>> AT+CNMI=?
>> < +CNMI: (0,1,2),(0,1,2,3),(0,2),(0,1,2),(0,1)
>> < OK
>> ofonod[3070]: drivers/atmodem/sms.c:build_cnmi_string()
>> ofonod[3070]: drivers/atmodem/sms.c:construct_ack_pdu()
>>> AT+CNMI=1,2,2,1,0
>> < OK
>> ofonod[3070]: src/network.c:__ofono_netreg_add_status_watch() 0x5bbbf0
>> ... unfortunately, with that configuration no messages are comming to
>> ofono and the other phone sees them as "delievery failed".
> 
> So you're saying the modem firmware is lying about supporting all these modes :)
> 
>> I had some luck with unicsy_demo using AT+CNMI=1,2 with text mode (not
>> PDU) messages. That works well enough for me.
> 
> oFono doesn't support text mode…

and it is impossible to support in a sane and complete manner.

>> Unfortunately, if I force ofono to pass "AT+CNMI=1,2", it does not
>> work well, either.
> 
> You could try using value of '1' for the <mt> parameter and see if the modem will route messages to memory first and send a +CMTI indication..

I remember vaguely that I dealt with a modem that had some issue with the indications. Maybe we already have a quirk for that in one of the drivers. So look for SIMCOM or CINTERION vendor quirks. There are bunch of comments in drivers/atmodem/sms.c for this. You need to figure out on what level this modem is broken.

Regards

Marcel