Error 633 XPE Modem

[mikamauro]

Hi,
I have a problem with remote connection with XP Embedded
When I try to connect, the modem return Error 633: The modem...
With HiperTerminal and Diagnostic Tool of Modem I have not problem.
I suspect I lost some component to build the OS with Target Designer.
I have inserted:
TAPI (all)
RAS
Driver Modem

Which others components I must to insert?
I have need your help.

Thanks