1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Declarations
6.1 Reference configuration
6.2 Selection of end devices
6.3 Selection expressions
7 Test purposes
7.1 Testing of SIP protocol requirements
7.2 Number portability
7.3 Accounting
7.4 Carrier selection
7.5 Emergency call
7.6 Quality of service
Bibliography