cc_GetChanId( ) gets the last channel information
96
Name: cc_GetChanId(crn, chanId)
Inputs: CRN crn • call reference number
CHAN_ID *chanId • pointer to channel ID structure
Returns: 0 on success
< 0 on failure
Includes: cclib.h
Category: Optional call handling
Mode: synchronous
Technology: BRI/2; BRI/SC
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Description
The cc_GetChanId( ) function gets the last channel information received from
messages for the specified CRN. This function is used after a call-related event is
received for the board device (e.g., dtiB1)
Parameter Description
crn: The call reference number.
chanId: Pointer to the Channel ID structure that contains the last channel
preference known for the specified CRN.
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Cautions
The channel ID information associated with a specific CRN may change after an
incoming call is connected or answered.
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Example
#include <windows.h> /* For Windows applications only */
#include <stdio.h>
#include <errno.h>
#include “srllib.h”
#include “dtilib.h”
#include “cclib.h”
/** Globals **/
CRN normal_crn = 0; /* crn of a normal call */
CRN waitingcall_crn = 0;
/** Function prototypes **/
long event_handler(unsigned long event_handle);
int callfail (CRN crn);
int procdevfail (LINEDEV handle);