Hi Enrico,

On 05/06/2016 05:06 AM, Enrico Sau wrote:
> ​Hi Denis,
>
> discard my last mail please, I went back some step and I found that in
> the modem bus there are ​spare characters which may get the state
> machine confused.

Do you have a log handy?

>
> I'm thinking abut solving the problem from the plugin because this
> happens when I insert the sim.
>
> Is there a safe way to reset the modem at channel including the syntax
> from the plugin?

Not really, but you can try writing your own syntax if the garbage the 
modem sends is not random.

Regards,
-Denis