Dear Parnum,
Thanks for your answer.
We installed Application link and CSTA server on a Windows 2003 R2 system.
and installed CSTA client and tapi converter on a windows XP SP3 system.
But when we use our program to get telephony signaling data from TAPI service, sometimes tapi service crashes.
We have no idea how resolve it.
If you have any recommendation please let us know.
Please tell me how I could download SP4 version of tapi converter.
Best Regards
Monhi