Table of Contents
2.4 The Telephone System & SS7
The Public Switched Telephone Network - PSTN
Phone System Structure
AT&T, the RBOCS and Competition in the US
The Local Loop
Quadrature Amplitude Modulation
Trunks & Multiplexing
Synchronous Optical Network - SONET / SDH
SONET Optical Channel Rates
OC-1 SONET Frames = 810 bytes at 51.84 Mb/ s
OC-N SONET Frames = N * 51.84 Mb/ s
Circuit Switched Networks
Packet Switched Networks
Packet Switched Datagrams
Virtual Circuits
Virtual Circuits or Datagrams
Circuit vs Packet Switched Timing
Switching and Routing
Space Division Switching
Multiple Stage Switch
Input & Output Buffered Switch
TDM Switching
Digital PBX
Dynamic Routing Networks
Telephone call processing
Common Channel Signaling
Example call setup in SS7
The Common Channel Signaling (CCS) Network
Common Channel Signaling (SS7) Protocol
Services Supported by CCS - Traffic Loads
Example Signaling Network
SS7 Level 1 and 2 Functions
Level 3 Functions
Level 3 Traffic Management Functions
Level 3 Traffic Management Functions (Cont'd)
Level 3 Traffic Management Functions (Cont'd)
Level 3 Route Management Functions
Level 3 Route Management Functions (Cont'd)
Signaling Point Components
Service Connection Control Protocol (SCCP)
An SCCP Model
SCCP Management Functions
The Signaling Transfer Point (STP)
Signaling Point Examples
Example Network Model
|