Step Three - Sending a TCAP Dialogue and Component

The API function described in this section allows you to send a dialog and component through SwitchKit to the SS7 network.

Application Code

// allocate dialogue id. instance value is returned during

// registration.

ret = sk_allocateTCAPDialogueID(instance, &did);

if (ret != SK_OK)

{

printf("Failed to allocate dialog id: %d\n", ret);

}

// Create TCAP Begin dialogue object

sktal::TCAP_Begin begin;

// populate orignating and destination

// point codes.

begin.SetOPC(LOCAL_PC);

begin.SetDPC(REMOTE_PC);

// populate orignating SCCP address

begin.SetOrigAddr(true, LOCAL_PC, LOCAL_SSN);

// Populate destination SCCP address.

begin.SetOrigAddr(true, LOCAL_PC, LOCAL_SSN);

// Populate destination SCCP address.

begin.SetDestAddr(true, REMOTE_PC, REMOTE_SSN);

// Set dialogue id allocated.

begin.SetDialogueID(did);

// Create TCAP invoke component instance.

sktal::TCAP_Invoke invoke;

invoke.SetOperation(true, 1, 1);

// Set invoke id.

invoke.SetInvokeID(1);

// set invoke timeout.

invoke.SetTimeOut(20);

// Set encoded parameters of TCAP User part

// API's like ANSI-41, MAP, CAMEL etc.

invoke.SetParameter(encodedParam);

// Send TCAP Component

ret = sktal::TCAP_Component::Send(sktal_getTCAPHandle(instance),

&begin, &invoke);

if (ret != SKTAL_SUCCESS)

{

printf("Failed to send component: %d\n", ret);

}

else

{

// Send TCAP dialogue.

ret = sktal::TCAP_Dialogue::Send(sktal_getTCAPHandle(instance),

&begin);

if (ret != SKTAL_SUCCESS)

{

printf("Failed to send dialogue: %d\n", ret);

}

}