You are here: SwitchKit® Development Environment - TCAP Interface User’s Guide > 7 SKTAL Sample Application > Step Three - Sending a TCAP Dialogue and Component

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);

}

}

See Signaling System Number Seven.
See Transaction Capability Application Part.
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.