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Voice API for Windows Operating Systems Library Reference — November 2003 195
dial an ASCIIZ string — dx_dial( )
/*
* Change call progress analysis default busy cadence
*/
if (dx_chgdur( TID_BUSY1, 550, 400, 550, 400 ) < 0) {
/* handle error */
}
if (dx_chgrepcnt( TID_BUSY1, 4 ) < 0) {
/* handle error */
}
/*
* Now enable call progress analysis with above changed settings.
*/
if (dx_initcallp( ddd )) {
/* handle error */
}
/*
* 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_stopch( )
• event management functions in the Standard Runtime Library API Library Reference
• ATDX_CPTERM( ) (to retrieve termination reason and events for dx_dial( ) with call
progress analysis)
• ATDX_TERMMSK( ) (to retrieve termination reason for dx_dial( ) without call progress
analysis)