GR 2948 CORE : ISSUE 1

Preface
1 Introduction
  1.1 Definition
  1.2 Background
  1.3 Terminology
2 User Perspective
  2.1 Introduction
  2.2 Typical PAC Scenario
3 Feature Requirements
  3.1 Feature Operations
  3.2 Call Processing Control Requirements
  3.3 Signalling
  3.4 Routing
  3.5 Administration
  3.6 Maintenance
  3.7 Performance
  3.8 Feature Interactions
  3.9 Limitations and Restrictions
  3.10 Timing and Tolerances
  3.11 PAC Announcements
References
Acronyms
List of Figures
Figure 3-1 PAC Service Invocation
Figure 3-2 PAC Per-Call Disable
Figure 3-3 PAC Per-Line Disable/Enable
List of Tables
Table 3-1 Possible Failures and Expected PAC Behaviour
Table 3-2 PAC Data Items
Table 3-3 PAC Announcements

Gives generic requirements for the Prompted Automatic Callback Feature. PAC is an originating SPCS feature that gives customers with convenient activation of the CLASS AC feature upon detection of a busy condition. It provides the means for residential and business customers to access AC without having to hang up and dial the AC activation code. PAC is available for Dual Tone MultiFrequency DTMF and Dial Pulse DP sets.