Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 823

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
I Applications
Videoconferencing
Authorization Code
Auto Dial
Automatic Route
Selection
Barge-In
Call Waiting
Callback
Callback
continued
Camp-On
Conference
Coverage
Directories
Authorization codes can be used by video systems that support the use of
# for feature codes.
A video system that supports the use of entering # for feature codes can
use Auto Dial in the same fashion.
Video calls can be made using ARS. To make calls using ARS, video
systems simply dial the ARS dial-out code (usually
telephone number. The calls must be routed through ARS pools that have
only PRI, NI-1 BRI, and/or Switched 56 T1 data lines. To make a 2B data
call, the user must access two separate lines.
Video calls cannot be barged into.
Call waiting does not work with video calls. The call appears to wait but
does not return to the extension when it becomes available. This feature
should be disabled at video system 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.
Video systems can be programmed for Callback. When either 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 is added to the call if the video system supports this
capability. Off-hook Callback must be used.
Automatic Callback should be disabled for videoconferencing extensions.
It can be used at an MLX passive-bus extension at a desktop video
workstation. If you use Automatic Callback, the call is connected as a 1B
data call.
Video calls cannot be camped on.
Conference does not function with video 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.
Individual Coverage is not recommended for 2B data calls. Because a
coverage receiver can have only one Cover button for each coverage
sender, covered 2B data calls are received only as 1B data calls at the
coverage receiver. The second call also continues to ring at the coverage
sender.
Coverage is not recommended for video extensions. However, an MLX
passive-bus telephone can be covered during 2B video calls (when both
B-channels are busy), but it must have a programmed Do Not Disturb
button. The user at the telephone activates Do Not Disturb during 2B
calls. A passive-bus MLX telephone can also be a coverage receiver.
Videoconferencing systems cannot make use of Extension, Personal, or
System Directories.
Issue 1
June 1997
Page I-66
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