cannot intercept ATD command in FS10 using R73_00 FW


Hi all, I have a problem with the interception of ATD command in R73_00 firmware used in a Fastrack Supreme 10. The release notes state that this is an open known problem while a FCM, CallService, SIM Service or GPRS Service is running. My aplication must have a GPRS Session up and running and I have to know which number is dialled form the external source (RS232, RS485). Can anybody give me some hints or other possible solutions?

Thx in advance