
210 Chapter 6 • Enabling Dial-on-Demand Routing (DDR)
Introduction
In Chapter 5, we looked at using Integrated Services Digital Network
(ISDN) and dial-on-demand routing (DDR) to enhance on-demand connec-
tivity, using legacy DDR configurations. In this chapter, we will take a
more in-depth look at DDR and how to optimize DDR connectivity using
rotary groups, dialer ...