ITU-T Rec. E.170 � TRAFFIC ROUTING
1 Introduction
    1.1 Objective of traffic routing
    1.2 Scope of Recommendation
    1.3 Network topology
2 Logic of routing
    2.1 Routing structure
    2.2 Routing scheme
    2.3 Route selection
3 Call control procedures
    3.1 Progressive call control
    3.2 Originating call control
4 Applications
    4.1 Automatic alternative routing
    4.2 Automatic rerouting (crankback)
    4.3 Load sharing
    4.4 Dynamic routing