qmicli: NAS set technology preference at alcatel

Marius Kotsbak marius at kotsbak.com
Sun Jan 27 20:29:11 PST 2013


On Jan 27, 2013 10:36 PM, "Thomas Schäfer" <tschaefer at t-online.de> wrote:
>
> Am Sonntag, 27. Januar 2013, 20:41:24 schrieb Aleksander Morgado:
> > > The log has these AT commands, but I don't think there is anything
> > > interesting here either, unless the AT+SYSSEL command does something
> > > useful?
>
> It seems to be useful. I entered these commands to minicom
>
> >
> > [...]
> >
> > > AT+SYSSEL?
> > > AT+SYSSEL=,0,0
> > > AT+SYSSEL=,1,0
> > > AT+SYSSEL=,2,0
> > > AT+SYSSEL=,5,0
> >
> > SYSSEL is actually the way to select allowed/preferred modes in the
> > Alcatels (0:auto, 1:2G, 2:3G, ...), at least the X22X plugin in
> > ModemManager uses it.
>
> I can confirm:
>
> AT+SYSSEL=,1,0 -----> the LED indicates 2G/GSM
> AT+SYSSEL=,2,0 -----> the LED indicates 3G/GSM
>
> AT+SYSSEL=,0,0
> and
> AT+SYSSEL=,5,0
>                -----> LED indicates LTE (my experience)
>                               indicates net search (docu at manual), but
the
> connection afterwards is also LTE
>
> If zero is autoselect, then it should be normal for selecting LTE too.

,5,0 is probably LTE only then.

We should add that to the MM plugin mentioned above.

--
Marius
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