Hi Martin, Please do not top-post on this mailing list. On 09/28/2012 03:48 AM, martin.grimme(a)gmail.com wrote: > Hi, > > > I wouldn't rely on the Present property too much. I have seen modems > where the SimManager interface is not even available if the SIM was > missing. And I have seen modems where Present was still true after I > have pulled out the SIM... > Sounds like your hardware does not support SIM hot-swap. Regards, -Denis