274 Voice API for Windows Operating Systems Library Reference — November 2003
dx_initcallp( ) — initialize and activate call progress analysis
/*
* Set off Hook
*/
if ((dx_sethook( ddd, DX_OFFHOOK, EV_SYNC )) == -1) {
/* handle error */
}
/*
* Dial
*/
if ((car = dx_dial( ddd, dialstrg,(DX_CAP *)&cap_s, DX_CALLP|EV_SYNC))==-1) {
/* handle error */
}
switch( car ) {
case CR_NODIALTONE:
printf(" Unable to get dial tone\n");
break;
case CR_BUSY:
printf(" %s engaged\n", dialstrg );
break;
case CR_CNCT:
printf(" Successful connection to %s\n", dialstrg );
break;
default:
break;
}
/*
* Set on Hook
*/
if ((dx_sethook( ddd, DX_ONHOOK, EV_SYNC )) == -1) {
/* handle error */
}
dx_close( ddd );
}
!
!!
!See Also
•dx_chgdur( )
•dx_chgfreq( )
•dx_chgrepcnt( )
•dx_deltones( )
•dx_TSFStatus( )