adk avm

Hi, I'm working on a ISDN Application, that should find out
CallingPartynumber and CalledPartynumber. So I started working with
the avm adk and built a new interact function, which is used to listen
at the capi and that handles incoming messages. In this case the
application waits for an incoming call.
Until up to now everything works. The problem is, when someone calls,
I just get the callingpartynumber. The calledpartynumber has a default
value.

I added to the function 

"Handle_Indication()" 
"SetCalledPartyNumberStruct (Connection,
CONNECT_IND_CALLEDPARTYNUMBER(CMSG))"

and tried to print the CalledPartyNumber with 

"printf("\nCalledPartyNumber: %s", GetCalledPartyNumber(Connection));"

but it seems like there is no entry in the structure for
CalledPartynumber of the message.

Can anybody help me with that. Is it possible that my isdn controller
doesn't work right?

Thanx in advance