Document Outline

• Table of Contents
• ABOUT THIS DOCUMENT
  • PREREQUISITE SKILLS AND KNOWLEDGE
  • DOCUMENT ORGANIZATION
  • HOW TO MAKE COMMENTS ABOUT THIS DOCUMENT
• 1. INTRODUCTION TO CONNECTIVITY
  • TRANSMISSION TYPES
    • ANALOG TRANSMISSION
    • DIGITAL TRANSMISSION
    • ANALOG VS. DIGITAL
  • TRANSMISSION STATES
    • VOICE TRANSMISSION
      • Entering the Switch
      • Exiting the Switch
    • DATA TRANSMISSION
      • Protocol Layers
      • Protocols Used
      • Protocol States
      • Connectivity Rules
  • MULTIPLEXED COMMUNICATION
    • TYPES OF MULTIPLEXING
      • Frequency-Division Multiplexing
      • Time-Division Multiplexing
      • Statistical Multiplexing
    • MULTIPLEXING OVER DS1 FACILITIES
      • Line Coding
      • Signal Inversion
      • Framing
      • Signaling
    • MULTIPLEXING OUTSIDE THE SWITCH
      • Multiplexing onto T1 Trunks
      • Compressing the Signal
      • Altering Channel Assignments on T1 Trunks
      • Getting the Signal Ready for the Central Office
      • Changing the Transmission Medium from Metallic to Fiber-Optic
      • Multiplexing with Microwave
      • Demultiplexing
    • STATISTICAL MULTIPLEXING
  • TRUNKING
    • APPLICATION
      • Local Exchange Trunks
      • Tie Trunks
      • Special-Access Trunks
      • Auxiliary Trunks
      • Miscellaneous Trunks
    • CONNECTIVITY
    • ADMINISTRATION OPTIONS
      • System 85/G2 Administration
      • System 75/G1 Administration
      • DS1 Options
    • INTERFACE CIRCUIT
    • TRUNK TABLES
• 2. COMMUNICATION SYSTEM NETWORKING (em AN OVERVIEW
  • TYPES OF NETWORKS
  • NETWORK EVOLUTION
  • SOFTWARE CAPABILITIES
    • Basic Networking Software
    • Main-Satellite/Tributary Software (em The UDP and Multipremises Packages
    • Electronic Tandem Network Software (em The PNA and ETN (Standard Network) Packages
    • Distributed Communications System
  • NETWORK CALL PROCESSING
    • Internal Dial Plan
    • Auxiliary Call Information
    • Automatic Alternate Routing
    • Automatic Route Selection
  • NETWORK ADMINISTRATION
  • PRIVATE NETWORK TRUNKS
  • NETWORKING FEATURE PARAMETERS
• 3. TANDEM TIE TRUNK NETWORKS
  • INTERACTIONS WITH OTHER NETWORKS
• 4. MAIN-SATELLITE/TRIBUTARY (MS/T) NETWORKS THROUGH THE UDP OR MULTIPREMISES PACKAGES
  • MS/T CONFIGURATIONS
    • Main-Satellite Configuration
    • Main-Tributary Configuration
  • MS/T FEATURES
    • Routing Incoming Calls
    • Routing Outgoing Calls
    • Other Routing Capabilities
  • ENGINEERING CONSIDERATIONS
  • INTERACTIONS
• 5. ELECTRONIC TANDEM NETWORK (ETN) THROUGH THE ETN AND PNA PACKAGES
  • ETN CONFIGURATIONS
  • ETN TRUNKS
    • Access and Bypass Access Tie Trunks
    • Off-Net Trunks
  • FEATURES
    • Uniform Numbering Plan
    • Automatic Alternate Routing
    • Automatic Route Selection
  • ETN INTERACTIONS WITH OTHER NETWORKS
    • Extension Number Portability Clusters
    • Software-Defined Network
    • Release Link Trunk Networks - CAS and ACD
    • Distributed Communications System Clusters
    • Main-Satellite/Tributary Networks
  • ENGINEERING CONSIDERATIONS
• 6. DISTRIBUTED COMMUNICATIONS SYSTEM (DCS)
  • DCS CLUSTERS
  • DCS LINKS
    • Tie Trunks
    • Signaling Links
  • DCS SIGNALING LINK CONNECTIONS
    • System 75 or Generic 1 (G1) to System 75 or G1
    • System 85 or Generic 2 (G2) to System 85 or G2
    • System 75 or Generic 1 (G1) to System 85 or Generic 2 (G2)
    • DIMENSION Signaling Links
  • TRANSPARENT FEATURES
    • Transparent Attendant Features
    • Transparent Voice Terminal Features
    • Audio Information Exchange (AUDIX) Features Transparency
  • ENGINEERING CONSIDERATIONS
  • ADMINISTRATION CONSIDERATIONS
• 7. DATA CONNECTIVITY - AN OVERVIEW
  • DATA COMMUNICATIONS VARIABLES
    • Communications Protocols
    • Analog vs. Digital
    • Synchronous vs. Asynchronous
    • Simplex vs. Half-Duplex vs. Full-Duplex
    • Parallel vs. Serial
    • Transmission Speed
    • Type of Communications Channel
  • SPECIAL DATA FEATURES
    • Terminal Dialing
    • Data Call Setup From a Voice Terminal
    • Computer Dialing
    • Data Hot Line
    • Data Protection
    • Data Privacy
    • Data Restriction
    • Data Only Off-Premises Extension
• 8. DATA COMMUNICATIONS CAPABILITIES
  • DTE CONNECTIONS
    • DTE COMPATABILITY
      • Protocol Converters
      • Terminal Emulators
      • PC/PBX or PC/ISDN
    • DCE POSSIBILITIES
      • Data Modules
      • ADUs
      • Modems
    • DATA MODULE CHARACTERISTICS
    • MODEM POOLING CONNECTIONS
  • LOCAL AREA NETWORK CONNECTIONS
    • LAN TOPOLOGY
    • LAN PROTOCOL
    • LAN TRANSMISSION MEDIA
    • LAN CONNECTORS
    • ADVANTAGES OF A COMMUNICATIONS SYSTEM IN A LAN ENVIRONMENT
      • Communication Between the LAN and Outside DTEs
      • Communication Between the LAN and Other Networks
      • The Communication System as a LAN Backup
  • PUBLIC AND PRIVATE DATA NETWORK CONNECTIONS
    • PUBLIC DATA NETWORKS
      • Packet-Switched Public Data Networks
      • Circuit-Switched Public Data Networks
    • PRIVATE DATA NETWORKS
      • Terrestrial Private Data Network Links
      • Satellite Private Data Network Links
  • TELEMARKETING HOST CONNECTIONS
    • THE ISDN GATEWAY
    • THE INTEGRATED TELEMARKETING GATEWAY
  • DATA NETWORK ADMINISTRATION
• 9. DATA COMMUNICATIONS CONFIGURATIONS
  • DSC AND PSC CONNECTIONS
  • SNA NODE CONNECTIONS
  • CONNECTIONS THROUGH PUBLIC OR PRIVATE DATA NETWORKS
    • File Transfers
    • Video Teleconferencing
    • Image Processing
    • FAX Transmittal
• A. RELATED DOCUMENTS
• B. SYNCHRONIZATION OF DIGITAL FACILITIES
  • THE NEED FOR SYNCHRONIZATION
  • SYNCHRONIZATION HIERARCHY
  • CHANGES TO THE SCS SOFTWARE MADE AVAILABLE VIA SOFTWARE PATCHES
  • NETWORK SYNCHRONIZATION AND ENGIINEERING
  • AVAILABILITY OF SYNCHRONIZATION SOURCES
  • CONCLUSIONS ON SYNCHRONIZATION
  • USE OF GENERIC 2 AS A SYSTEM CLOCK REFERENCE
  • USE OF GENERIC 1 AS A SYSTEM CLOCK REFERENCE
• C. TRUNKING TERMS AND CAPABILITIES
• D. COMMUNICATIONS PROTOCOLS
  • OSI MODEL
  • STANDARD PROTOCOLS
  • AT&T PROTOCOLS
• E. LEAD DEFINITIONS
• F. NETWORKING FEATURES - AVAILABILITY MATRIX
• ABBREVIATIONS
• GLOSSARY
• INDEX