Integrated Services Digital Network

CHAPTER 9The technical risks of the ISDN and B-ISDN

DOI: 10.1201/9781003420408-9

9.1 Introduction

Having negotiated a long section of narrative with much political content it is now time to approach the ISDN from the point of view of the designer and network planner seeking to implement a complex, new concept that is, as has been seen, at once insufficiently defined for planning and excessively specified for imaginative design.

Underlying the discussion until now, and central to the subject areas yet to be covered, is the fundamental dilemma first introduced in Chapter 3. We are seeking to replace universal network access to a reasonably simple device, the telephone (Fig. 3.5), with access to highly complex devices (Fig. 3.4). Indeed, the ...