Tie Lines

In DSX-80/160, link two systems together for inter-system Intercom calling and other features.
Programming for this Feature
Programming Tie Lines
Programming Outside Line Type, Access, and Ringing
Programming T1 Lines
Important points to understanding Tie Lines
Available Single Line Features
Unavailable Single Line Features

Description

Tie lines directly link a local DSX-80/160 telephone system with one or more remote DSX-80/160 systems. The link is independent of the telco's switched network. When a local system user seizes a tie line, they hear Intercom dial tone from the remote system. The user can then use many of the features normally available to the remote system’s single line telephones, including:
  • Dialing Intercom extensions in the remote system.
  • Using the remote system's lines for outgoing calls.
  • Accessing System Speed Dial numbers in the remote system.
  • Using the remote system’s Paging.

Tie Lines require a T1 PCB and Tie Line service from the telco.

Conditions and Defaults

Conditions


  • None.

Default Setting


  • Disabled.

Other Related Features

Features


  • Direct Inward Dialing
    • Directly dial system extensions from outside the system.
  • Station Message Detail Recording
    • The SMDR record for an outgoing tie line call also includes the line access codes dialed.
  • T1 Lines
    • T1 provides advanced digital lines and simplifies installation. T1 is required for Tie Lines.

Available Single Line Features

The following single line telephone features are available over tie lines.
  • Call Waiting / Camp-On
  • Central Office Calls Placing (Line Group Access)
  • Direct Line Access
  • Door Box (calling)
  • Hold (retrieve a call on Hold in the remote system)
  • Intercom
  • Night Service (*0 pick up)
  • Speed Dial (System - dialing)
  • Transfer
  • Voice Mail (leave message in remote mailbox)

Unavailable Single Line Features

The following single line telephone features are not available over tie lines.
  • Barge In
  • Call Forwarding
  • Callback
  • Central Office Calls, Answering
  • Central Office Calls, Placing (Line Dial-up)
  • Conference
  • Directed Call Pickup
  • Flash
  • Forced Line Disconnect
  • Group Call Pickup
  • Hold (cannot place a line in the remote system on Hold)
  • Last Number Redial
  • Meet Me Conference
  • Message Waiting
  • Page
  • Park
  • Removing Lines and extensions from service
  • Speed Dial (Personal)
  • Split (between two calls in the remote system)
  • Tandem Calls (in the remote system)

IntraMail Features


  • None.