2.7.1 Toll Restriction (TRS)/Call Barring (Barring)
2.6.4 Speed Dialling—Personal/System
2.7.3 Extension Dial Lock
2.8.1 Automatic Route Selection (ARS)
5.1.1 Class of Service (COS)
5.1.4 Time Service
6.1 Capacity of System Resources
136
Feature Guide