2017-08-07 11:04 GMT+02:00 Aleksander Morgado <aleksan...@aleksander.es>: >>>>>>> I can confirm that LE866-SV1 uses Telit custom 3GPP2 PDU format: there >>>>>>> should be a PDU example in the AT commands user guide (see +CMGS >>>>>>> 3GPP2), while EU variants use 3GPP. >>>>>> >>>>>> Thanks for the information. Then it is expected that the USA version (the >>>>>> one I reported) does not work with ModemManager because it uses 3GPP2 PDU >>>>>> format? Or is this format also supported in ModemManager? >>>>>> >>>>> >>>>> My understanding is that it is currently not supported in ModemManager. >>>>> >>>> >>>> But... >>>> https://cgit.freedesktop.org/ModemManager/ModemManager/tree/src/mm-sms-part-cdma.c >>>> >>>> The issue here is that the message isn't formatted as 3GPP2/CDMA >>>> because the modem is actually an LTE modem (i.e. 3GPP). As soon as a >>>> modem is 3GPP, we use the 3GPP format, see: >>>> https://cgit.freedesktop.org/ModemManager/ModemManager/tree/src/mm-base-sms.c#n311 >>>> >>>> The question now would be, is this something that happens to all >>>> US-version Telit modems? >>> >>> As far as I know this happens only for Verizon customization that uses >>> SMS over IMS with 3GPP2 pdu. >>> >>>> Isn't this actually a bit weird, given that >>>> the LE866-SV1 is actually LTE-only (i.e. 3GPP-only, not 3GPP2)? >>> >>> Looks like a carrier requirement for SMS. >>> >> >> See also Reinhard's comment about this: >> >> https://lists.freedesktop.org/archives/modemmanager-devel/2016-January/002468.html >> > > Interesting... I now wonder how we can setup all this to work > automatically, if at all possible. We don't have any carrier-specific > customization right now anywhere. Maybe some user specified parameter > asking for a specific type of PDU to generate? >
For this specific scenario would it be a too ugly hack blindly re-trying with 3GPP2 if 3GPP fails and then storing the setting if successful? Unfortunately the result code is not helpful here (CMS ERROR: 41 that is temporary failure), but this could be something Telit specific... Or maybe we can let each plugin take care of this: for Telit modems probably we can think of checking some substring in the model name (e.g. -SV or -NV). Maybe other modems have a similar rule or some custom AT command that can be checked for that. Just throwing some ideas, not sure how much they make sense.. However a more generic way to address carrier customization issues could be helpful for other scenarios. Daniele > -- > Aleksander > https://aleksander.es _______________________________________________ ModemManager-devel mailing list ModemManager-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel