AT&T 555-600-736 manual Merlin Legend Trunking Concepts Application Note Index

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MERLIN LEGEND TRUNKING CONCEPTS

APPLICATION NOTE INDEX

Introduction

Tip & Ring Explained

Lines & Trunks

Loop-Start Trunks

Operations

Potential Problems

When to Use L/S

Ground-Start Trunks

Operations

Potential Problems

When to Use G/S

Direct Inward Dialing

Operations

Signaling Characteristics

LEGEND Operation

Administration

When to Use DID

TIE Trunk Operations

Tandem TIE Trunk Operations

Transferring Calls Over TIE Trunks

TIE Signaling and Implementation

Off-Premises Stations

T-1 (DS1) Service

Data Communications Equipment

DS1 Facility Services

Hotel/Motel Trunks

LEGEND Line/Trunk Hardware

Administration

Considerations

References

2

2

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5

7

9

10

10

11

12

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13

15

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Contents AT&T Merlin Legend Communications System Application Notes Page Merlin Legend Trunking Concepts Application Note Index TIP and Ring Explained Introduction to Trunking ConceptsLines and Trunks LOOP-START Trunks Operations Problem of Glare LOOP-START Trunks POTENTIAL-PROBLEMSAutomated Attendant Ghost Calls and Loop-Start Facilities LOOP-START Trunks When to USE LOOP-START Trunks Proper Loop-Start Facility ApplicationsUnavoidable Loop-Start Facility Applications Cost GROUND-START Trunks Operations GROUND-START Trunks When to USE GROUND-START Trunks GROUND-START Trunks Potential ProblemsDirect Inward Dialing did Trunks Operational Characteristics Types of Loop Reverse-Battery Signaling Did Trunk Signaling CharacteristicsAdministration Considerations in Using did Trunks When to USE did Trunks TIE TrunksSimple Tie Trunk Operation Tandem Tie Trunk Operation Signaling and Implementation TIE LinesTransferring Calls P E Transmit C E I V E ON-HOOK OFF-HOOK OFF Premises Stations Page Overview and Operations DS1 ServicePotential Problems/Limitations DESIGN, Signaling & ImplementationDo GBS Customers Need T-1? Data Communications EquipmentChannel Service Unit CSU Multiplexer MUX Isdn DS1 Facility ServicesSDN SID/ANI Maintenance and Troubleshooting Special HOTEL/MOTEL TrunksOperation Overview Hardware Module LINE/TRUNK Station Type Specifications TTR Trunk analog voice Reusable Modules from Merlin II R3 Considerations AdministrationReferences