Telit LE910-V2

Carlo Lobrano c.lobrano at
Wed Aug 7 13:23:41 UTC 2019

Hi Ondřej,

On Wed, 7 Aug 2019 at 13:24, Ondřej Krajsa <krajsa at> wrote:

> Hi,
> I have problems with TELIT LE910v2 modem, OS is Debian, ModemManager 1.10
> from repository.
> The first is as follows:
> Sometimes the modem refuses to connect to a bearer, with a error:
> error: couldn't connect the bearer:
> 'GDBus.Error:org.freedesktop.libmbim.Error.Status.Failure: Failure'

This error seems to come from the libmbim, could you share the actual
commands you use and the logs with debug enabled?

> The strange thing is that when I make a call (and hangup) to the modem
> (SIM), it connects immediately.
> I use:
> mmcli -m 0 --create-bearer = "apn = internet"
> mmcli -b 0 -c
> The second problem is that it refuses to connect to the "non-standard" APN
> via LTE, it is necessary to use a CID other than 1. Is it possible to set
> it up somehow?

What do you mean by "non-standard"?

If, as it seems, the modemmanager is using the MBIM protocol to communicate
with the modem, CID number should not be a problem, unless a combination of
AT + MBIM command has been used (which should be avoided, only AT commands
or only MBIM ones).

Lilkewise the first problem, could you share the actual commands used and
the debug logs? Plus - just for debugging - what's the output of the
command "AT+CGDCONT?" in this use case

> Best regards,
> Ondrej
> _______________________________________________
> ModemManager-devel mailing list
> ModemManager-devel at

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