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