1 Conference calling (CONF)
1.1 Scope
1.2 References
1.3 Definitions
1.4 Symbols and abbreviations
1.5 Description
1.6 Derivation of a functional model
1.7 Information flows
1.8 SDL diagrams for functional entities
1.9 Functional Entity Actions (FEAs)
1.10 Allocation of functions to physical entities