On Mon, Aug 7, 2017 at 2:26 PM, Daniele Palmas <dnl...@gmail.com> wrote: > 2017-08-07 11:04 GMT+02:00 Aleksander Morgado <aleksan...@aleksander.es>: > >>> > >>> 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 > > 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. >
I am not following all the technical details of the thread, but if we assume3GPP2 for the Telit LE866-SV modem, would that be a correct patch for ModemManager ? It is my understanding that this modem can only be used with Verizon SIM cards. On Mon, Aug 7, 2017 at 2:26 PM, Daniele Palmas <dnl...@gmail.com> wrote: > 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
