Hi Radek,

On 03/06/2012 03:30 PM, Radek Polak wrote:
> On Tuesday 06 March 2012 20:17:32 Dr. H. Nikolaus Schaller wrote:
> 
>> @Radek: is it possible to manually contact the AT interface in this state
>> and try if it is still operational and another AT+CLCC would succeed?
> 
> It seems after few errors it starts working again - if i understand it right 
> (see log below). Btw the probability of +CME ERROR increases with smaller CLCC 
> interval.
> 

FYI, CME ERROR: 100 means: "Unknown Error".  This firmware is rather
helpful here isn't it?

> So ingoring the error and trying again is the way to go for us?
> 

That sounds like your only avenue at this point.  If you're doing this
in oFono, then I would create an Option / GTA04 specific vendor quirk
for the voicecall driver.  When this quirk is set, ignore CME ERROR 100
errors (not any others) and retry the CLCC poll.

Regards,
-Denis