Hi Guillaume,

>> According to TS 102.223 on Screen Busy we also need to append a
>> "additional info" field in the Terminal Busy response with a 1-byte
>> value 01 ("screen is busy").
> 
> Yes you're right. I've seen this but after sending my patch.
> I've another patch in my pipe regarding this but in top of the current busy patch.
> I'm waiting the integration of the busy patch to submit it.

This is not how it works ;)  Please resubmit this patch with the code to
send 'Screen is Busy' additional info included.  You can even submit
your other pending patches in a series along with this one...

So e.g.

patch 1/n -> reworked add busy error...
patch 2/n -> pending patch 1,
etc

Regards,
-Denis