An Introduction to SS7

intro_to_ss7An Introduction to SS7
By Guy Redmill, SS7 Product Manager

July 2001
white paper

Table of Contents
ABSTRACT ..........................................................................................................................4 1 2 INTRODUCTION..........................................................................................................4 BACKGROUND AND HISTORICAL PERSPECTIVE ......................................................4 Figure 2.1: In Band Signaling: CAS..................................................................5 Figure 2.2: Out of Band Signaling: CCS ..........................................................5 3 PRINCIPLES OF SS7 SIGNALING: THE SIGNALING LINK ............................................5 Figure 3.1: Overview of SS7 Stack ................