initial bearer apn

[Juan A. Rubio]

On Thu, Mar 16, 2023 at 4:35 PM Peter Naulls <peter at chocky.org> wrote:
>
> On 3/16/23 11:32, Juan A. Rubio wrote:
> > Hi,
> >
> > I'm using ModemManager version 1.18.12. I'm also using Network Manager 1.22.16
> >
> > I'm wondering what part of the system stores or configures the initial
> > bearer apn, since I'm not explicitly setting this value?
> >
> > $ mmcli -m 0 | grep 'bearer apn'
> >             |      initial bearer apn: Telstra.internet
> >
> > Is this a default value set by MM or NM, or is this something that is
> > stored in the SIM by the carrier?
> >
>
> "It's complicated".
>
> I can't speak to exactly what MM does internally or what Network Manager
> does, but I can tell you that we needed to explicitly set this in our
> use to get consistent results.
>

Thanks Peter.

What mechanism did you use to set the initial bearer? I'm using a
Network Manager connection profile in which I'm setting the APN (e.g.
myapn), not Telstra.internet

[gsm]
apn=myapn
password=""
username=""

Do you use mmcli or MM DBus API instead of Network Manager?