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Message Flow of TCAP Components

Overview

This section contains the SS7 SCCP and TCAP PPL components and their IDs. Also, you will find diagrams showing the message flow for SCCP and TCAP components.

SCCP PPL Components

The following list contains the SS7 SCCP PPL Components and their IDs:

Component ID | Component Name
--- | ---
0x65 | SCLC - SCCP Connectionless Control
0x66 | SCRC - SCCP Routing Control
0x67 | SUSI - SCCP User Interface
0x68 | SPPC - Signaling Point Prohibited Control
0x69 | SPAC - Signaling Point Allowed Control
0x6A | SPCC - Signaling Point Congestion Control
0x6B | SSPC - Subsystem Prohibited Control
0x6C | SSAC - Subsystem Allowed Control
0x6D | SSTC - Subsystem Status Test Control
0x6E | BCST - Broadcast
0x6F | LBCS - Local Broadcast

TCAP PPL Components

Component ID | Component Name
--- | ---
0x70 | TUSI - TCAP User Interface
0x71 | CCO - Component Portion Control
0x72 | ISM - Component Portion
0x73 | TCO - Transaction Coordinator
0x74 | TSM - Transaction State Machine
0x75 | DHA - dialog Handling

Message flow for SCCP and TCAP components

Figure 6-4 SCCP Components and Message Flow

Note: SCMG = SCCP Management

Figure 6-5 TCAP Components and Message Flow

See Signaling System Number Seven.
See Transaction Capability Application Part.
See Programmable Protocol Language.
The condition of a component at a given instant. The current "context" of a PPL object, such as Idle, Seizing, Answered. In PPL files, a State is represented by a circle.