Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 820

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
I Applications
Videoconferencing
Desktop Videoconferencing
Desktop videoconferencing allows video calls, data transfer, and screen-sharing
between two PCs equipped with compatible hardware and software. Most
systems provide extensive menu- and mouse-driven interfaces with options for
call control. Desktop videoconferencing systems use ISDN/BRI interfaces.
With standalone configuration, only the desktop video system is attached to the
MLX port. The desktop video system always has full access to two B-channels in
its connection to the MERLIN LEGEND Communications System. Therefore, it
always has the capability to make and receive 2B data video calls.
With the passive-bus configuration, one MLX port serves both the desktop video
system and an MLX telephone. The MLX telephone is not directly connected to
the MLX extension jack on the control unit. Instead, it is connected to the desktop
video system card. The desktop video connection to the MLX extension jack
handles the communications for both devices.
The MLX telephone uses one of the B-channels of the extension jack. While the
telephone is in use, the video system can make or receive only 1B data calls. If
the passive-bus telephone's handset and speakerphone are both in use, then
both B-channels are busy and no video calls can be placed or received. Because
a video call generally uses both available B-channels, a user of the attached MLX
telephone cannot place or answer any voice calls or dial any feature codes while a
2B video call is active.
Mode Differences
Key Mode
In Key mode, a video workstation can be set up for inside video only, outside
video only, or both inside and outside video. To place and receive calls in this
mode, a video workstation uses personal lines or intercom lines programmed for
the MLX adjunct extension. Program and then make calls as follows:
Inside and Outside Video
— To make an outside call, enter the Idle Line Access code (usually
— To place an inside call to a videoconferencing workstation programmed
the telephone number; repeat this step for the second call. Or, enter the
line number (for example, 808) of an outside line assigned to the adjunct
extension; repeat this step for the second call, using another assigned
line number.
for 2B data, enter the MLX adjunct extension number for the video
system twice. If you are calling a V.35 group videoconferencing system,
enter a different MLX adjunct extension number for each call.
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