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Wasn't that neat? A feature that you can implement separately to be a
pain in the ass is the recursive MIC that sends an annoying message to a
specified terminal. It is almost impossible for them to shut you out without
logging out unless they are already gagged.
Just create a small MIC file called BUG.MIC... to do it in two lines,
simply type...
.SEN <tty # goes here> Eat hot photons, Vogon slime!
.DO BUG
That's it! I hope this comes in useful to someone out there! Give us
a call at The Shack... 512-396-1120 300/1200 baud, 24 hours a day... And a
special welcome to all the feds who will doubtlessly be calling since the
number appears in here... we have nothing to hide!
+++The Mentor+++
==Phrack Inc.==
Volume One, Issue Nine, Phile #8 of 10
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"Introduction to Videoconferencing"
by Knight Lightning
Written On 10/3/86
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Hi, KL here welcoming you to a look at Videoconferencing. This is a
relatively new field that definitely bears investigation as videoconferencing
is only a step away from everyone having video communication in the home. Well
enough is enough, I hope you enjoy the file --KL.
______________________________________________________________________________
Despite the growing use of videoconferencing, confusion still exists regarding
what it can and cannot do. This file should begin to help answer some of the
questions about videoconferencing and perhaps formulate new ideas as well.
Videoconferencing is not just one thing. It takes several different forms and
can be designed in many different ways. Most of these ways are probably still
waiting to be discovered.
First of all, there are two main categories of videoconferencing. There is
Point-to-Point and Point-to-Multipoint.
Point-to-point/Two-Way Videoconferencing
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Two-way videoconferencing enables people to conduct meetings even though the
participants are in separate locations. Using interactive video and audio
equipment, participants in one location can see, hear, and interact with
colleagues in another location.
The most familiar example occurs regularly on TV. When a newscaster in
Washington interviews a head of state on the opposite side of the world
"live," that's point-to-point, full-motion, full-color videoconferencing.
Point-to-multipoint/One-Way Videoconferencing
---------------------------------------------
The one-way videoconference allows an organization to present video
information to large audiences in multiple locations at the same time.
One-way videoconferences are very different from two-way videoconferences in
purpose and in implementation. Two-way videoconferences allow small groups in
two, or possibly several, locations to interact audio-visually. In contrast,
one-way videoconferences are designed to provide a one-way audio-visual
presentation of information from an originating site to audiences at numerous
receiving locations.
The remote "audiences" are not seen by the initiators of the presentation.
However, since both types of videoconferencing take place in real time, live,
the audience can participate over the phone.
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There are two variations on the above listed categories of videoconferencing;
Full-motion videoconferencing and freeze-frame videoconferencing. Each
carries its own set of system requirements and each accomplishes quite
different tasks.
FULL-MOTION Videoconferencing
-----------------------------
Full-motion videoconferencing is like watching television. You can see
participants in another location in color and in "real time" motion. You can
identify who is present (provided that they are within camera range) and who
is speaking. You can see facial expressions, hand gestures, and general body
language. Motion video is used primarily for images of people.
Motion Transmission On Wideband Channels
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There is far more information in moving pictures then in a still image.
Consequently, the size of the communications channel required to transmit and
receive motion is far greater than that required for a still image.