Developing TAPI Driver

K

kbrooks

Hello all. I am attempting to develope a TAPI driver to work with
Asterisk VoIP PBX. So far I have been able to get Outlook to dial my
IP Phone first, call the person from my contacts and we connect with no
problem. The problem I am having is when the call is terminated.
Outlook seems to have trouble recognizing the call has terminated.
Currently, from my driver, I send a "LINEDEVSTATE_CLOSE". With this,
Outlook does recognize the call has ended, but it produces the
following error message "The line or address is in use by another
program or device. You call could not be place at this time. Try your
call again later".

My question is, is there some Windows Message I can send to Outlook
that will notify it the call has terminated?
 

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