1 Scope
2 References
3 Definitions
4 Abbreviations and acronyms
5 Conventions
6 Voice trunking over IP networks
7 General requirements
7.1 User plane requirements
7.2 Management plane aspects
7.3 Fault management aspects
7.4 Traffic management aspects
7.5 Connection admission control for the IWF
7.6 Congestion control
8 Functional group considerations for VToIP network
interworking
8.1 IP
8.2 UDP
8.3 Common interworking indicators
9 Payload format
10 Encapsulation format
11 Aggregating VoIP streams
12 Security considerations