Rec. ITU-T Q.1215 (03/1993) … PHYSICAL PLANE FOR INTELLIGENT NETWORK CS-1
FOREWORD
CONTENTS
SUMMARY
1 General
2 Requirements and assumptions
    2.1 Requirements
    2.2 Assumptions
3 Physical entities (PEs)
4 Mapping requirements
5 Mapping the distributed functional plane to the physical plane
    5.1 Mapping of functional entities to physical entities
    5.2 Mapping of FE-FE relationships to PE-PE relationships
    5.3 Selection of underlying protocol platforms