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34 - TCM - Telecommunications Technologies

TCM 109 - Signalling System No.7 – SS7

Code Start Date Duration Venue
TCM 109 09 October 2023 5 Days Istanbul Registration Form Link
TCM 109 04 December 2023 5 Days Istanbul Registration Form Link
Please contact us for fees


Course Description

Signalling System No.7 is commonly known as SS7 and sometimes referred to as C7. SS7/C7 is a system used to implement signalling and protocols for telecommunications networks. SS7 supports both fixed-line and cellular networks. This course covers in-depth analysis of SS7 signalling, architecture, services, and performance monitoring issues and tools

Course Objectives

  • Overviewing public switched telephone networks (PSTNs)
  • Exploring signalling systems, associated terminology and concepts
  • Explaining the C7/SS7 protocol stack for both cellular and fixed line systems
  • Planning the integration and testing of new SS7 applications
  • Assisting in the design of new mobile network applications and services
  • Explaining how to navigate C7/SS7 standards
  • Explaining how to analyse the C7/SS7 protocols
  • Understanding and navigate service protocol standards (INAP, CAMEL and MAP)

Who Should Attend?

  • Telecommunication engineers
  • Technical development and support professionals involved in the support and implementation of networks and services
  • Those professionals involved in the design and implementation of next-generation telecommunication solutions

Course Details/Schedule

Day 1

  • Signalling overview
  • Signalling and its purpose
  • History of signalling
  • In-band/out-of-band signalling
  • Subscriber versus network signalling
  • Analog/digital network signalling technologies
  • Analog/digital access signalling technologies
  • SS7/C7 signalling standards

Day 2

  • PSTN and signalling
  • Overview of PSTN components
  • Signalling between the components
  • Network hierarchy
  • Evolving the PSTN to the Next Generation Networks (NGNs)
  • Channel associated signalling (CAS)
  • Common channel signalling (CCS)
  • CCS versus CAS
  • Modes (Associated/Quasi-Associated/Non-Associated)

Day 3

  • SS7 network architecture and protocols
  • The SS7/C7 protocol stack against the OSI model
  • SS7/C7 functionality overview
  • SS7/C7 based services and supplementary services
  • SS7/C7 network elements (SSP, STP, SCP)
  • SS7 network architecture versus C7 network architecture
  • Link/Route/Traffic management
  • Service Switching Points (SSPs)
  • Signal Transfer Points (STPs
  • Service Control Points (SCPs)
  • Intelligent Peripherals (IPs)
  • Service Nodes (SNs)
  • Service management and creation

Day 4

  • Message Transfer Part (MTP)
  • Overview of MTP
  • MTP types/classes
  • MTP 1 functions/services/issues
  • N. American T1 versus European PRI E1 Carrier
  • Digital TDM Hierarchy for N. America versus Europe and Asia
  • MTP 2 functions/services/issues
  • MTP 2 Overhead, Message Signal Unit (MSU), Link Status Signal Unit (LSSU)
  • MTP 3 functions/services/issues
  • MTP 3 Overhead, Service Information Octet (SIO), Sub-Service Field (SSF), Service Indicator (SI)
  • Link error detection/correction and methods used for monitoring
  • Link management, transmission priorities, initial alignment issues

Day 5

  • Selected topics in SS7
  • Service-oriented protocols
  • Signalling Connection Control Part (SCCP)
  • Telephony User Part (TUP)
  • National User Parts (NUPs)
  • Narrowband ISDN User Part (N-ISUP)
  • Transaction Capabilities Application Part (TCAP)
  • Intelligent Network Application Protocol (INAP)
  • Customisable Applications for Mobile Enhanced Logic (CAMEL)
  • Mobile Application Part (MAP)
  • SS7/C7 over IP
  • SS7/C7 security, testing and monitoring