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This document describes the concepts and functions of Signaling System Number 7 (SS7). SS7 is widely deployed in the public switched telephone network (PSTN). It sources out-of-band signaling throughout the PSTN.
The guide is intended for system administrators and service technicians charged with configuring and maintaining end office switching systems.
This document describes SS7 functions and components in the following chapters:
Chapter 1 | Overview | Briefly describes signaling methods used in the PSTN. |
Chapter 2 | SS7 Signaling Architecture | Describes SS7 components and link types. |
Chapter 3 | SS7 Protocol Stack | Describes protocol stack elements in relation to the layers of the OSI model. |
Chapter 4 | SS7 Signal Units | Describes the format and structure of SS7 signal types. |
Chapter 5 | ISUP and TCAP | Describes setup of calls and database queries using the ISUP and TCAP protocols. |
This document uses the following conventions:
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Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the manual. |
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Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data. |
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Warning Warning means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, you must be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translated versions of the warning, refer to the Regulatory Compliance and Safety document that accompanied the device. |
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Posted: Sat Sep 28 13:44:35 PDT 2002
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