B.1 Introduction
B.2 The SDL system diagram
B.3 The SDL block structure diagram
B.4 SDL specification for the nodal
function
B.4.1 Introduction
B.4.2 SDL diagrams for the Nodal Function 1
B.4.3 Procedures in the nodal function
B.4.4 Data structures of AAL type 2 signalling messages and parameters
B.5 SDL diagrams for the protocol
entities
B.5.1 Introduction
B.5.2 SDL diagrams for
the outgoing, incoming, and maintenance protocol procedures