G.1 Scope
G.2 Definitions
G.3 Abbreviations
G.4 Normative references
G.5 System models
G.5.1 Hierarchical
G.5.2 Distributed or full mesh
G.5.3 Clearing house
G.5.4 Aggregation point
G.5.5 Overlapping administrative domains
G.6 Operation
G.6.1 Use of H.501 messages
G.6.2 Address templates and descriptors
G.6.3 Discovery of a peer element or set of
peer elements
G.6.4 Resolution procedures
G.6.5 Usage information exchange
G.6.6 Number portability information signalling
G.7 Signalling examples
G.7.1 Distributed or full mesh
G.7.2 Clearing house
G.8 Annex G profiles
G.8.1 Introduction
G.8.2
Profile "A": Interzone call routing to a trusted
gatekeeper