FW: MM v1.4.6/Telit HE910-D SMS question

[Aleksander Morgado]

On Wed, Sep 2, 2015 at 4:53 PM, Highland, Glenn <Glenn.Highland at digi.com> wrote:
>
> Aleksander suggested that I propose the change below to the mailing list.
>
> Essentially we're encountering a problem with SMS notifications not being received
> by the application from ModemManager v1.4.6 (and v1.4.10 for that matter).  This
> is using a Telit HE910-D that has two USB endpoints (in our case ttyACM0 and
> ttyACM3).
>
> The Telit HE910-D needs to be configured with the AT+CNMI=2,1,2,1,0 command on
> both the primary and secondary ports as confirmed by Telit Support.  Currently
> that command is performed only on the primary port, which is reserved for PPP
> I/O after connection to the provider network.  The secondary port's New
> Message Indication configuration remains at 0,0,0,0 which (in summary) causes
> the modem to discard inbound messages without storing them.  Hence ModemManager
> does not get notified of a newly-received SMS.
>
> Does an update to mm-broadband-modem.c seem reasonable to everyone?

The specific suggestion I'm doing is to run the CNMI settings command
in both the primary and the secondary ports for all AT-based modems,
not just in the primary port - but don't fail the operation if setting
it in the secondary port fails (e.g. for the case where secondary port
is a very limited or not-fully-functional AT interpreter).

-- 
Aleksander
https://aleksander.es