You are here: SwitchKit® Development Environment - TCAP Interface User’s Guide > 4 SKIM Sample Application > Step Three: Sending a TCAP Transaction

Step Three: Sending a TCAP Transaction

The API function described in this section allows you to send a TCAP transaction.

Application Code

// Create SKIM_Trans object of type SKIM_TC_BEGIN

SKIM_Trans trans (SKIM_TC_BEGIN);

// Create objects for calling party and called party

// address.

SKIM_CallingPartyAddr origAddr;

SKIM_CalledPartyAddr destAddr;

// Populate OPC and DPC

trans.SetOPC(LOCAL_PC);

trans.SetOPC(REMOTE_PC);

// populate calling party address

origAddr.SetSSN(LOCAL_SSN);

origAddr.SetPointCode(LOCAL_PC);

origAddr.SetRouteByPCSSN(true);

#if defined(CCITT)

origAddr.SetInternationalRouting(true);

#elif defined (ANSI)

origAddr.SetInternationalRouting(false);

#endif

// Set calling party address for begin transaction.

trans.SetSourceAddress(origAddr);

//Set Called Party Address

destAddr.SetSSN(REMOTE_SSN);

destAddr.SetPointCode(REMOTE_PC);

destAddr.SetRouteByPCSSN(true);

#if defined(CCITT)

destAddr.SetInternationalRouting(true);

#elif defined (ANSI)

destAddr.SetInternationalRouting(false);

#endif

// Set called party address for begin transaction.

trans.SetDestAddress(destAddr);

// Set quality of service for the transaction message.

SKIM_OCTET priority;

priority = 0;

trans.SetQualityOfService(QOSI_RET_OPT|SKIM_QOSI_RET_OPT, priority);

// Adding a operation to transaction object.

// Create operation of type SKIM_TC_INVOKE

SKIM_Operation op(SKIM_TC_INVOKE);

// Set Invoke Id.

op.SetInvokeId(1 + i);

// Set Operation Code

#if defined(CCITT)

op.SetOpCode(100);

// Set Operation Class for invoke operation.

op.SetClass(1); // Set Invoke operation timeout

op.SetInvokeTimeout(10);

#else defined(ANSI)

op.SetOpCode(true, 1, 1);

#endif

// Set ASN.1 encoded TCAP User parameters

op.SetParameter(SKIM_Encode());

// Add operation to the transaction object.

trans.AddOperation(op);

// Send transaction to EXS

ret = api_classptr.Send(trans);

if (ret != SKIM_SUCCESS)

{

printf("Send transaction failed ret = %d", ret);

return ret;

}

// Get the call reference id allocated for this transaction.

SKIM_UINT callrefid = ;

trans.GetCallReferenceId();

See Transaction Capability Application Part.
Destination Point Code
Comité Consultatif Internationale de Telephonique et Telegraphique (now ITU)
American National Standards Institute. ANSI administers and coordinates the U.S. voluntary standardization and conformity assessment system for the
telecommunications industry. More details on these standards may be
viewed at www.ansi.org.
A sequence of eight bits.