You are here: CSP Developers Guide: Common Channel Signaling > 6 SCCP/TCAP > ITU TCAP Primitives
Overview
This section lists the ITU 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.
The following ITU TCAP primitives are supported by the PPL Event Request and PPL Event Indication messages. The primitive is supported by both messages unless noted otherwise.
TC-UNI
TC-BEGIN
TC-CONTINUE
TC-END
TC-U-ABORT
TC-P-ABORT (Indication only)
TC-NOTICE (Indication only)
TC-INVOKE
TC-RESULT-L
TC-RESULT-NL
TC-U-ERROR
TC-U-REJECT
TC-L-CANCEL (Indication only)
TC-U-CANCEL (Request only)
TC-L-REJECT (Indication only)
TC-R-REJECT (Indication only)
N-UNIT-DATA
N-NOTICE (Indication only)
N-STATE
N-PC-STATE (Indication only)
TC_RESET_TIMER
ITU TCAP TUSI PPL Events
The TCAP User Interface is responsible for host API message validation. This section lists the PPL Events used to send ITU 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 ITU primitives for the PPL component, TCAP TUSI (0x70). The primitive IDs correspond to the PPL Event IDs for this component.
Note: An asterisk beside an event indicates that you should see SCCP/TCAP Parameter Information for the format.
0x01 TC-BEGIN
:
Request |
Indication |
---|---|
TCAP Parameter ICB (M) SCCP Parameter ICB (M) |
TCAP Parameter ICB (M) SCCP Parameter ICB (M) |
0x02 TC-CONTINUE
Request |
Indication |
---|---|
TCAP Parameter ICB (M) SCCP Parameter ICB (O) |
TCAP Parameter ICB (M) SCCP Parameter ICB (O) |
0x03 TC-END
Request |
Indication |
---|---|
TCAP Parameter ICB (M) SCCP Parameter ICB (O) |
TCAP Parameter ICB (M) SCCP Parameter ICB (O) |
0x04 TC-UNI
This dialog primitive requests/indicates an Unstructured dialog. It corresponds to an Unidirectional TCAP package.
.
Request |
Indication |
---|---|
TCAP Parameter ICB (M) SCCP Parameter ICB (M)
|
TCAP Parameter ICB (M) SCCP Parameter ICB (M) |
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) SCCP Parameter ICB (O) |
TCAP Parameter ICB (M) SCCP Parameter ICB (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) SCCP Parameter ICB (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) SCCP Parameter ICB (M)
|
TCAP Parameter ICB (M) SCCP Parameter ICB (M) |
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) SCCP Parameter ICB (M) |
TCAP Parameter ICB (M) SCCP Parameter ICB (M) |
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) SCCP Parameter ICB (O) |
TCAP Parameter ICB (M) SCCP Parameter ICB (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. |
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) SCCP Parameter ICB (O) |
TCAP Parameter ICB (M) SCCP Parameter ICB (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. |
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) SCCP Parameter ICB (O) |
TCAP Parameter ICB (M) SCCP Parameter ICB (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) |
TCAP Parameter ICB (M) |
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) |
TCAP Parameter ICB (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) |
TCAP Parameter ICB (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) |
TCAP Parameter ICB (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)
|
TCAP Parameter ICB (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) |
TCAP Parameter ICB (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) |
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) |
0x16 TC-U-CANCEL
This is a user request to cancel an operation. No component is sent.
Request |
Indication |
---|---|
TCAP Parameter ICB (M) |
|
0x17 TC-NOTICE
This primitive informs the TC-USER that the network service provider is unable to provide the requested service.
Request |
Indication |
---|---|
|
TCAP Parameter ICB (M) Elements (0) |
0x19 TC-RESET TIMER
This primitive resets the Invoke timer for TC_INVOKE primitive initiated from the CSP.
Request |
Indication |
---|---|
Dialog ID (M) Invoke ID (M) |
|