Dialogic 05-0867-005 If the function returns a value < 0 to indicate failure, use the cc_CauseValue( ), ccerr.h, isdnerr.h and isdncmd.h.

* The cc_CallAck() function needs to be called after

* cc_WaitCall and before cc_CallProgress(), cc_AcceptCall()

* and cc_AnswerCall()

if ( cc_CallAck(crn,0,CALL_PROCEEDING) <0)

callfail(crn);

printf("Accepting call\n");

if ( cc_AcceptCall(crn, 0, EV_SYNC)<0)

callfail(crn);

if ( cc_AnswerCall(crn, 0, EV_SYNC)<0)

callfail(crn);

if ( cc_DropCall(crn, NORMAL_CLEARING, EV_SYNC)<0)

callfail(crn);

if ( cc_ReleaseCall(crn)<0)

callfail(crn);

if ( cc_Close( devhdl)<0)

printf("Error closing device, errno = %d\n", errno);

}

int callfail(CRN crn)

{LINEDEV ld;

cc_CRN2LineDev(crn,&ld);

procdevfail(ld);

}

int procdevfail(LINEDEV handle)

{int reason;

char *msg;

reason = cc_CauseValue(handle);

cc_ResultMsg(handle,reason,&msg);

printf("reason = %x - %s\n",reason,msg);

}

! !

Errors

If the function returns a value < 0 to indicate failure, use the cc_CauseValue( )

function to retrieve the reason code for the failure. The cc_ResultMsg( ) function

can be used to interpret the reason code. Error codes are defined in the files

ccerr.h, isdnerr.h and isdncmd.h.