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Last weak got a new course and its time to add more notes about SS7 Stack (public) and some little details about SS7 Security.
RFS
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- The overview of the SS7 system
- The definition and structure of the SS7 signalling network: SP, STP, SL, LS, etc.
- The logical division of SS7: MTP and User Parts
- Use of SS7 protocol in 2G and 3G mobile networks and fixed networks
- Overview of various SS7 protocols
- The functions of the different MTP levels
- The structure and functions of MTP signal units, signalling link states and link management functions
- MTP 3 message handling – addressing, routing, load sharing, and distribution
- The overview of Signalling Network Management and Testing functions
- Use and functions of ISUP in PSTN, ISDN, and mobile networks
- Various ISUP signalling procedures: call handling, circuit management, etc.
- ISUP messages and their structure
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- SCCP functions and applications
- SCCP signalling modes: connectionless and connection oriented
- SCCP addresses and their usage in 3GPP networks
- SCCP messages and their structure
- TCAP functions and applications
- Functions of TCAP component and transaction sub-layer
- TCAP messages and their structure
- GSM/UMTS MAP interfaces and operations
- Overview of MAP signalling scenarios for mobility, call handling, supplementary services management, recovery, etc.
- Dialog portion functions
- Detailed analysis of a mobile terminating call scenario with focus on MTP, SCCP, ISUP, TCAP, and MAP messages and their parameters
- An introduction to Intelligent Networks nodes and functions with CAMEL as an example
- Overview of IN call triggers and CAMEL subscription information records
- Overview of basic CAP operations.
- Overview of SAAL-NNI protocols, their functions, and message formats
- Example SSCF and SSCOP procedures
- Overview of SS7-over-IP interfaces, protocols, and emulation options
- Functions and messages of SCTP protocol, example SCTP packet flow
- Overview of M3UA functions and messages
- M3UA addressing with routing keys and routing contexts
- Example M3UA signalling scenarios for establishment of an association, user data transfer, and signalling network management.