Why do I get a LINEERR_OPERATIOINUNAVAIL error when I try run a Application on winnt4(sp6)+TAPI2.1?
I use lineDevSpecific to set RTP Controll Stream,
LINE_REPLY return following msg:
TAPI device= 0 event= LINE_REPLY
TAPI LINEREQUEST_UNKNOWN (0x1) error= LINEERR_OPERATIONUNAVAIL: <unknown>
How can I do?
Can please anyone help me?