Introduction:

SS7/C7 is a system used to implement signaling and protocols for telecommunications networks. Signaling System No. 7 is commonly known in North America as SS7 and elsewhere throughout the world as C7. SS7 supports both fixed-line and cellular networks. In recent years, expanded telecommunications services have resulted in the introduction of additional SS7 protocols and functionality. The course presents the basic SS7/C7 concepts on the first day. The more complex features of SS7 level 4 protocols are covered on day two. Day three covers the newer and more advanced services including Advanced Intelligent Network (AIN) and Transaction Capabilities Applications Part (TCAP) message structures and architecture. In this course, you will learn the history of signaling and the progression of the technology through both in-band signaling and out-of-band signaling protocols. The course explains the fundamental differences between the SS7 ITU-T and ANSI standards as well as the connection and connectionless signaling services. You will discover how SS7 supports cellular services such as subscriber roaming and packet-switched data services. The course begins with several topics which explain the purpose of lower level signaling protocols MTP1, 2, and 3 including error control and network performance monitoring. Day three introduces the more advanced signaling and database query functions performed in compliance with AIN and non-circuit related transactions.

Audience:

This course is aimed at the telecommunications engineers and engineering managers involved in the design, testing and operation of switched voice and data networks.

Prerequisites:

Those intending to take this course should have some prior basic understanding of telephony and packet switched networks.

Customize it:

This 3-4-day SS7 course will be customized to your needs and specifications. Eno.com will assist you in identifying those needs and specifications. A word to the wise, there are many vendors of wireless training. They will typically have a broad and general course, one size fits all, already developed and just put your organization’s name on the title slide. This minimizes their effort and time investment. At Eno.com, every course is made to your exact and exacting specifications. We help you ensure what you are getting is what you really need even if at the beginning you weren’t too sure of what that was. We fit the class to your needs. We never fit you into our “standard”, one size fits all, class.

Objectives:

Troubleshoot SS7 network problems. Monitor and evaluate SS7 network performance. Compare the SS7 North American ASCII standards and ITU international standards. Plan the integration and testing of new SS7 applications. Design new mobile network applications and services.

Course Outline

Session 1: Signaling Overview History of Telecommunications Signaling Network Signaling Evolution What is Signaling? What is Out-of-Band Signaling? Summary of the Signaling Network Architecture Network Signaling Evolution The North American Signaling Architecture Signaling System No 7 Overview of SS7, IN, AIN, Wireless, and VoIP Standards Organizations Session 2: SS7 Network Architecture Service Switching Points (SSPs) Signal Transfer Points (STPs) Service Control Points (SCPs) Intelligent Peripherals (IPs) Service Nodes (SNs) Service Management and Creation Session 3: SS7 Signal Data Links Access Link (A) Bridge Link (B) Cross Link (C) Diagonal Link (D) Extended Link (E) Fully Associated Link (F) Session 4: SS7 Applications Advanced Intelligent Networks (AIN) Basic Call Setup Example Database Query Example Layers of the SS7 Protocol What Goes over the Signaling Link? Addressing in the SS7 Network Signal Unit Structure What Are the Functions of the Different Signaling Units? Message Signal Unit Structure Local Number Portability (LNP) SS7 and Database Connection Wireless Applications OSS Interconnection: E911/911, LIDB, OS/DA Session 5: SS7 Layers Physical Layer Message Transfer Part (MTP) - Level 2 Message Transfer Part (MTP) - Level 3 Signaling Connection Control Part (SCCP) ISDN User Part (ISUP) Transaction Capabilities Application Part (TCAP) Operations, Maintenance, and Administration Part (OMAP) Session 6: Network Service Part (NSP) of SS7 Message Transfer Part (MTP) Data Link Level Signaling SS7 Signaling Units Signaling Network Function Level Signaling Information SS7 Signaling Message Types SS7 Network Node Identification SS7 Network Management Message Types Link and Route Management Traffic Management Signaling Connection Control Part (SCCP) Routing and Discrimination Global Title Routing Subsystem Management Session 7: User Part of SS7 Transaction Capabilities Application Part (TCAP) Operation, Maintenance, and Administration Part (OMAP) ISDN User Part (ISUP) Session 8: Message Transfer Part (MTP) MTP Levels 1, 2, and 3 Message Routing MTP Level One Structure of MTP Level Two Basic Error Control Method CRC Link Status Signal Unit (LSSU) Signal Unit Alignment Procedure Structure of MTP Level Three Message Handling Normal Routing Procedure Signaling Network Management Network Maintenance Network and Link Management Session 9: ISDN User Part (ISUP) Advanced Concepts ISUP Services Call Setup and Teardown Connection Control Messages and Formats Interworking with ISDN Q.931 Session 10: Signaling Connection Control Part (SCCP) Enhancements to MTP Routing Flow Control Connection-Oriented and Connectionless Services Global Title Translation SCCP Management SCCP Management Structure Message Types Task of SCCP Messages Parameters of SCCP Messages The Principle of a SCCP Connection Session 11: Transaction Capabilities Application Part (TCAP) Component and Transaction Portions ASP Services TCAP Message Structure Connectionless TCAP TCAP Parameters Session 12: Wireless Network Overview Elements in a Mobile Network Mobile Switching Center (MSC) Base Station Controller (BSC) Base Transceiver Station (BTS) Home Location Register (HLR) Visitor Location Register (VLR) Short Message Service Center (SMSC) ANSI-41 and Mobile Application Part (MAP) GSM, CDMA and SS7 Session 13: SS7 Enabling Products SS7 Enabling Product Overview SS7 STACKS Source Code Binary Stacks SS7 Boards SS7 Platforms Session 14: SS7 Equipments Service Switching Points (SSP) and Mobile Switching Center (MSC) SS7 Connectivity Software Signaling Transfer Points (STP) Service Control Points (SCP)/Adjunct Processors (AP) Intelligent Peripherals (IP)/Service Nodes (SN) Home Location Registers (HLR)/Visitor Location Registers (VLR) Short Message Service Centers (SMSC) Voice over IP (VoIP) Gateways