ANSI TCAP Primitives

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Overview

This section lists the ANSI TCAP primitives supported by the SCCP/TCAP feature. Primitives are sent to and received from the CSP in the PPL Event Request and PPL Event Indication messages in ICBs:

• SS7 TCAP Parameters (0x21).

Important! The TCAP ICB always includes a dialog ID which is four bytes.

ANSI Primitives

The ANSI primitives are supported by both the PPL Event Request and PPL Event Indication message unless noted otherwise.

• TC-UNI

• TC-QUERY-WITH-PERMISSION

• TC-QUERY-WITHOUT-PERMISSION

• TC-CONVERSATION-WITH-PERMISSION

• TC-CONVERSATION-WITHOUT-PERMISSION

• TC-RESPONSE

• TC-U-ABORT

• TC-P-ABORT (Indication only)

• TC-NOTICE (Indication only)

• TC-INVOKE-L

• TC-INVOKE-NL

• TC-RESULT-L

• TC-RESULT-NL

• TC-U-ERROR

• TC-U-REJECT

• TC-L-REJECT (Indication only)

• TC-R-REJECT (Indication only)

• TC-U-Cancel (Request only)

• N-UNIT-DATA

• N-NOTICE (Indication only)

• N-STATE

• N-PC-STATE (Indication only)

ANSI TCAP TUSI PPL Events

The TCAP User Interface is responsible for host API message validation. This section lists the PPL Events used to send ANSI TCAP primitives in the PPL Event Request and PPL Event Indication messages.The required ICBs with mandatory (M) and optional (O) parameters are shown with each primitive. See SCCP/TCAP Parameter Information for the data required for each parameter.

The following events are used to send and receive ANSI primitives for the PPL component, TCAP TUSI (0x70). The primitive IDs correspond to the PPL Event IDs for this component. The ANSI specification does not define TCAP primitives to TC_User. Where common primitives are used, Dialogic followed the ITU Q.771 definitions.

Note: An asterisk beside an event indicates that you should see SCCP/TCAP Parameter Information for the format.

0x04 TC-UNI

This dialog primitive requests/indicates an Unstructured dialog. It corresponds to an Unidirectional TCAP package. Note that the TCAP ICB always includes a dialog ID.

Request	Indication
TCAP Parameter ICB (M) - No parameters included SCCP Parameter ICB (M) - Calling Party Address (CGPA) or CGPA Elements (O) - Called Party Address (CDPA) or CDPA Elements (M) - Quality of Service (O)	TCAP Parameter ICB (M) - Component Present (M) SCCP Parameter ICB (M) - Calling Party Address (CGPA) or CGPA Elements (M) - Called Party Address (CDPA) or CDPA Elements (O) - Quality of Service (O)

Request

Indication

TCAP Parameter ICB (M)
- No parameters included

SCCP Parameter ICB (M)
- Calling Party Address (CGPA) or CGPA Elements (O)
- Called Party Address (CDPA) or CDPA Elements (M)
- Quality of Service (O)

TCAP Parameter ICB (M)
- Component Present (M)

SCCP Parameter ICB (M)
- Calling Party Address (CGPA) or CGPA Elements (M)
- Called Party Address (CDPA) or CDPA Elements (O)
- Quality of Service (O)

0x05 TC-U-ABORT

This dialog primitive allows a TC-USER to terminate a dialog abruptly without transmitting any pending components.

Request	Indication
TCAP Parameter ICB (M) - User Abort Info (M) SCCP Parameter ICB (O) - Calling Party Address (CGPA) or CGPA Elements (O) - Called Party Address (CDPA) or CDPA Elements (O) - Quality of Service (O)	TCAP Parameter ICB (M) - User Abort Info (M) SCCP Parameter ICB (O) - Calling Party Address (CGPA) or CGPA Elements (O) - Called Party Address (CDPA) or CDPA Elements (O) - Quality of Service (O)

Request

Indication

TCAP Parameter ICB (M)
- User Abort Info (M)

SCCP Parameter ICB (O)
- Calling Party Address (CGPA) or CGPA Elements (O)
- Called Party Address (CDPA) or CDPA Elements (O)
- Quality of Service (O)

TCAP Parameter ICB (M)
- User Abort Info (M)

SCCP Parameter ICB (O)
- Calling Party Address (CGPA) or CGPA Elements (O)
- Called Party Address (CDPA) or CDPA Elements (O)
- Quality of Service (O)

0x06 TC-P-ABORT

This dialog primitive informs TC-USER that the dialog has been terminated by the TCAP because a protocol error has been detected. No pending components will be sent.

Request	Indication
	TCAP Parameter ICB (M) - P-Abort Cause (M) SCCP Parameter ICB (O) - Calling Party Address (CGPA) or CGPA Elements (O) - Called Party Address (CDPA) or CDPA Elements (O) - Quality of Service (O)

Request

Indication

TCAP Parameter ICB (M)
- P-Abort Cause (M)

SCCP Parameter ICB (O)
- Calling Party Address (CGPA) or CGPA Elements (O)
- Called Party Address (CDPA) or CDPA Elements (O)
- Quality of Service (O)

0x07 TC-QUERY-WITH-PERMISSION

This dialog primitive is similar to the ITU TC-BEGIN primitive. Under normal circumstances, it will cause a TCAP Query with Permission package to be sent to the network. An Indication indicates an incoming Query with Permission package, which starts a dialog.

Request	Indication
TCAP Parameter ICB (M) - No parameters included SCCP Parameter ICB (M) - Calling Party Address (CGPA) or CGPA Elements (O) - Called Party Address (CDPA) or CDPA Elements (M) - Quality of Service (O)	TCAP Parameter ICB (M) - Component Present (M) SCCP Parameter ICB (M) - Calling Party Address (CGPA) or CGPA Elements (M) - Called Party Address (CDPA) or CDPA Elements (O) - Quality of Service (O)

Request

Indication

TCAP Parameter ICB (M)
- No parameters included

SCCP Parameter ICB (M)
- Calling Party Address (CGPA) or CGPA Elements (O)
- Called Party Address (CDPA) or CDPA Elements (M)
- Quality of Service (O)

TCAP Parameter ICB (M)
- Component Present (M)

SCCP Parameter ICB (M)
- Calling Party Address (CGPA) or CGPA Elements (M)
- Called Party Address (CDPA) or CDPA Elements (O)
- Quality of Service (O)

0x08 TC-QUERY-WITHOUT-PERMISSION

This dialog primitive is the same as the TC-QUERY-WITH-PERMISSION except that it indicates to the peer that the transaction cannot be released. See the ANSI specification for more information (this primitive corresponds to the Query Without Permission package). This primitive starts a dialog.

Request	Indication
TCAP Parameter ICB (M) - No parameters included SCCP Parameter ICB (M) - Calling Party Address (CGPA) or CGPA Elements (O) - Called Party Address (CDPA) or CDPA Elements (M) - Quality of Service (O)	TCAP Parameter ICB (M) - Component Present (M) SCCP Parameter ICB (M) - Calling Party Address (CGPA) or CGPA Elements (M) - Called Party Address (CDPA) or CDPA Elements (O) - Quality of Service (O)

Request

Indication

TCAP Parameter ICB (M)
- No parameters included

SCCP Parameter ICB (M)
- Calling Party Address (CGPA) or CGPA Elements (O)
- Called Party Address (CDPA) or CDPA Elements (M)
- Quality of Service (O)

TCAP Parameter ICB (M)
- Component Present (M)

SCCP Parameter ICB (M)
- Calling Party Address (CGPA) or CGPA Elements (M)
- Called Party Address (CDPA) or CDPA Elements (O)
- Quality of Service (O)

0x09 TC-CONVERSATION-WITH-PERMISSION

This dialog primitive is similar to the ITU TC-CONTINUE. It corresponds to the TCAP Conversation package. It indicates the continuation of a dialog.

Request	Indication
TCAP Parameter ICB (M) - No parameters included SCCP Parameter ICB (O) - Calling Party Address (CGPA) or CGPA Elements (O) ¹- Called Party Address (CDPA) or CDPA Elements (O)¹- Quality of Service (O)	TCAP Parameter ICB (M) - Component Present (M) SCCP Parameter ICB (O) - Calling Party Address (CGPA) or CGPA Elements (O) ²- Called Party Address (CDPA) or CDPA Elements (O) ²- Quality of Service (O)
¹ CGPA and CDPA are stored for the dialog when it is initialed. TC-USER provides CGPA and CDPA only if they are changed. ² CGPA and CDPA are sent to the host only if they differ from the stored values.

Request

Indication

TCAP Parameter ICB (M)
- No parameters included

SCCP Parameter ICB (O)
- Calling Party Address (CGPA) or CGPA Elements (O) ¹- Called Party Address (CDPA) or CDPA Elements (O)¹- Quality of Service (O)

TCAP Parameter ICB (M)
- Component Present (M)

SCCP Parameter ICB (O)
- Calling Party Address (CGPA) or CGPA Elements (O) ²- Called Party Address (CDPA) or CDPA Elements (O) ²- Quality of Service (O)

¹ CGPA and CDPA are stored for the dialog when it is initialed. TC-USER provides CGPA and CDPA only if they are changed.
² CGPA and CDPA are sent to the host only if they differ from the stored values.

0x0A TC-CONVERSATION-WITHOUT-PERMISSION

This primitive is similar to the TC-CONVERSATION-WITH-PERMISSION, except that the peer does not have permission. It corresponds to the ITU Conversation Without Permission package. It is the continuation of a dialog.

Request	Indication
TCAP Parameter ICB (M) - No parameters included SCCP Parameter ICB (O) - Calling Party Address (CGPA) or CGPA Elements (O) ¹- Called Party Address (CDPA) or CDPA Elements (O)¹- Quality of Service (O)	TCAP Parameter ICB (M) - Component Present (M) SCCP Parameter ICB (O) - Calling Party Address (CGPA) or CGPA Elements (O)² - Called Party Address (CDPA) or CDPA Elements (O)² - Quality of Service (O)
¹ CGPA and CDPA are stored for the dialog when it is initialed. TC-USER provides CGPA and CDPA only if they are changed. ² CGPA and CDPA are sent to the host only if they differ from the stored values.

Request

Indication

TCAP Parameter ICB (M)
- No parameters included

SCCP Parameter ICB (O)
- Calling Party Address (CGPA) or CGPA Elements (O) ¹- Called Party Address (CDPA) or CDPA Elements (O)¹- Quality of Service (O)

TCAP Parameter ICB (M)
- Component Present (M)

SCCP Parameter ICB (O)
- Calling Party Address (CGPA) or CGPA Elements (O)²
- Called Party Address (CDPA) or CDPA Elements (O)²
- Quality of Service (O)

0x0B TC-RESPONSE

This dialog primitive is similar to the ITU TC-END primitive. It corresponds to the ITU Response package when the termination option is set to Basic End. When the termination option is set to
Pre-arranged End, this primitive ends the dialog locally.

Request	Indication
TCAP Parameter ICB (M) - Termination Option SCCP Parameter ICB (O) - Calling Party Address (CGPA) or CGPA Elements (O) - Called Party Address (CDPA) or CDPA Elements (O) - Quality of Service (O)	TCAP Parameter ICB (M) - Component Present (M) SCCP Parameter ICB (O) - Calling Party Address (CGPA) or CGPA Elements (O) - Called Party Address (CDPA) or CDPA Elements (O) - Quality of Service (O)

Request

Indication

TCAP Parameter ICB (M)
- Termination Option

SCCP Parameter ICB (O)
- Calling Party Address (CGPA) or CGPA Elements (O)
- Called Party Address (CDPA) or CDPA Elements (O)
- Quality of Service (O)

TCAP Parameter ICB (M)
- Component Present (M)

SCCP Parameter ICB (O)
- Calling Party Address (CGPA) or CGPA Elements (O)
- Called Party Address (CDPA) or CDPA Elements (O)
- Quality of Service (O)

0x0C TC-RESULT-L

This component primitive corresponds to the ITU Return Result Last Component. It is the only result or the last part of the segmented result of a successfully executed operation.

Request	Indication
TCAP Parameter ICB (M) - Correlation ID (O) - Parameter (O) *	TCAP Parameter ICB (M) - Correlation ID (O) - Parameter (O) *

0x0D TC-RESULT-NL

This component primitive corresponds to the ITU Return Result Not Last Component. It is a non-final part of a segmented result of a successfully executed operation.

Request	Indication
TCAP Parameter ICB (M) - Correlation ID (O) - Parameter (O) *	TCAP Parameter ICB (M) - Correlation ID (O) - Parameter (O) * - Last Component (M)

0x0E TC-U-ERROR

This component primitive corresponds to the ITU Return Error component. It indicates that the operation failed.

Request	Indication
TCAP Parameter ICB (M) - Correlation ID (O) - Error Code (M) * - Parameter (O) *	TCAP Parameter ICB (M) - Correlation ID (O) - Error Code (M) * - Parameter (O) * - Last Component (M)

0x10 TC-INVOKE-L

This component primitive corresponds to the ITU Invoke Last component. It is the only part or last part of the segmentation of the invocation of the operation. It may be the invocation of an operation or an invocation responding to another invoke.

Request	Indication
TCAP Parameter ICB (M) - Invoke ID (O) - Correlation ID (O) - Operation (M) * - Parameter (O) *	TCAP Parameter ICB (M) - Invoke ID (O) - Correlation ID (O) - Operation (M) * - Parameter (O) * - Last Component (M)

0x11 TC-INVOKE-NL

This component primitive corresponds to the ITU Invoke Not Last component. It is always an invocation responding to another invoke. It is a non-final segment of the invoke.

Request	Indication
TCAP Parameter ICB (M) - Invoke ID (M) - Correlation ID (M) - Operation (M) * - Parameter (O) *	TCAP Parameter ICB (M) - Invoke ID (M) - Correlation ID (M) - Operation (M) * - Parameter (O) * - Last Component (M)

0x12 TC-U-REJECT

This component primitive corresponds to a Reject component. It is initiated because of a user decision of Reject an Incoming Component.

Request	Indication
TCAP Parameter ICB (M) - Correlation ID (O) - Problem Code (M) - Parameter (O) *	TCAP Parameter ICB (M) - Correlation ID (O) - Problem Code (M)(see SCCP/TCAP Parameter Information for format) - Parameter (O) * - Last Component (M)

0x13 TC-L-REJECT

This component primitive indicates the detection of a protocol error in an incoming component. A Reject component is constructed and stored for this dialog, and is sent out upon the reception of another transaction layer primitive request.

Request	Indication
	TCAP Parameter ICB (M) - Invoke ID or Correlation ID (O) - Problem Code (M) (see SCCP/TCAP Parameter Information for format) - Last Component (M)

0x14 TC-R-REJECT

This indication informs the TC-USER that the remote TCAP rejected a previously sent component.

Request	Indication
	TCAP Parameter ICB (M) - Correlation ID (O) - Problem Code (M) (see SCCP/TCAP Parameter Information for format) - Last Component (M)