ABSTRACT
RESOURCES A good online introduction to SS7, with details about the format of the MTP, ISUP, SCCP, and
TCAP protocols, is at www.microlegend.com/whatss7.htm. Bell Atlantic offers a short self-study course on SS7, complete with quiz questions, at
www. webproforum.com/bell-atlantic2/full.html. For an overview of the telephone network, including SS7, SO NET, and broadband ISDN, check
out Telecommunications Protocols, by Travis Russell (McGraw-Hill, 1997). For more about the specifics of SS7's components, the best in-depth reference is Travis Rus-
sell's book Signaling System #7, 2nd Edition, (McGraw-Hill, 1998). This tutorial, number 125, by Alan Zeichick, was originally published in the December 1998 issue of Network Magazine.
