Lucent Technologies MERLIN LEGEND Release 6.1 Feature Reference page 253

MERLIN LEGEND Communications System Release 6.1
Feature Reference 555-661-110
Features
Digital Data Calls
Auto Dial
Automatic Route
Selection
Barge-In
Call Waiting
Callback
Camp-On
Conference
A terminal adapter can make a call using an Auto Dial button by dialing
the virtual number of the button (for example
supports entering # for feature codes can use Auto Dial in the same
fashion.
Data calls can be made using ARS. To make calls using ARS, digital
devices simply dial the ARS dial-out code (usually ) followed by the
telephone number. Data calls must be routed through ARS pools that
access only PRI, NI-1 BRI, and/or T1 Switched 56 data lines. To make a
2B data call, a user must make two calls on different lines.
Data calls cannot be barged into.
Call Waiting does not work on data calls. A call appears to wait but does
not return to the extension when it becomes available. This feature should
be disabled at video systems and data extensions.
At a passive-bus MLX telephone, Call Waiting requires one of the
B-channels needed for a 2B video call and should be used only when the
video system is not active on, or receiving, a call.
Videoconferencing systems that can dial feature codes using # can use
Selective Callback. When a pooled line becomes available or the busy
video system is idle, the queued call is made, one B-channel at a time.
When the second B-channel becomes available, it can be used for the
connection as well, providing the video system supports this capability.
Although video systems can use either off-hook or on-hook Callback, you
should only use off-hook Callback for 2B data connections. If you use
on-hook Callback, the returning callback call is connected using only one
B-channel.
Automatic Callback should be disabled for digital data and
videoconferencing extensions. It can be used at MLX passive-bus
extensions at desktop video workstations.
You cannot camp onto data or video calls.
Conference does not function with data calls.
2B data video calls require both B-channels at a video workstation. For
this reason, if a call is on hold for conferencing at a passive-bus MLX
telephone when a 2B call comes in, the passive-bus MLX telephone
cannot retrieve the held call until the 2B video call is over.
Issue 1
August 1998
Page 204
). A video system that