SS7 Signalling in Mobile Networks
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
SS7 Introduction
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
MTP – Message Transfer Part
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
ISUP – ISDN User Part
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
SCCP – Signalling Connection Control Part
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 – Transaction Capabilities Application Part
TCAP functions and applications
Functions of TCAP component and transaction sub-layer
TCAP messages and their structure
MAP – Mobile Application Part
GSM/UMTS MAP interfaces and operations
Overview of MAP signalling scenarios for mobility, call handling, supplementary services management, recovery, etc.
Dialog portion functions
Traffic case
Detailed analysis of a mobile terminating call scenario with focus on MTP, SCCP, ISUP, TCAP, and MAP messages and their parameters
CAMEL Application Part
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.
SS7 over ATM
Overview of SAAL-NNI protocols, their functions, and message formats
Example SSCF and SSCOP procedures
SS7 over IP
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.
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