Gartner Research

Signaling System 7

Published: 01 June 2001

ID: G0097652

Analyst(s): David L. Fraley


This Perspective focuses on SS7, the fundamental control element of the PSTN. Accordingly, this Perspective should be used as a tutorial for those unfamiliar with SS7. This Perspective also provides an introduction to the signaling protocols and standard bodies.

Table Of Contents
  • PSTN Signaling
    • SS7 Signaling Types
    • Network Topologies — PSTN and SS7
    • Basic SS7 Network Elements
    • SS7 Connection Links
    • Global Title Translation
    • SS7 Flavors
    • SS7 Protocol Stack
  • Standard Bodies
    • ITU
    • ETSI
    • ANSI
  • Gartner Dataquest Perspective
    • Gartner Dataquest Recommendations

©2021 Gartner, Inc. and/or its affiliates. All rights reserved. Gartner is a registered trademark of Gartner, Inc. and its affiliates. This publication may not be reproduced or distributed in any form without Gartner’s prior written permission. It consists of the opinions of Gartner’s research organization, which should not be construed as statements of fact. While the information contained in this publication has been obtained from sources believed to be reliable, Gartner disclaims all warranties as to the accuracy, completeness or adequacy of such information. Although Gartner research may address legal and financial issues, Gartner does not provide legal or investment advice and its research should not be construed or used as such. Your access and use of this publication are governed by Gartner’s Usage Policy. Gartner prides itself on its reputation for independence and objectivity. Its research is produced independently by its research organization without input or influence from any third party. For further information, see Guiding Principles on Independence and Objectivity.

Already have a Gartner Account?

Purchase this Document

To purchase this document, you will need to register or sign in above

Become a client

Learn how to access this content as a Gartner client.