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DESCRIPTION:A Brief Prehistory of Voice over IP -- with Steve Casner co-rec
 ipient of IEEE 2020 Internet Award.\n\nThis talk explores the development 
 of interactive voice communication\nover packet-switched networks beginnin
 g in 1974 with experiments over\nthe ARPANET -- before IP and the Internet
  were invented.\n\nTo achieve low-delay transmission required changing som
 e fundamental assumptions\nabout the service provided by the network along
  with the development\nof new network protocols to provide the different f
 unctions needed for\nreal-time communication.\n\nThe low (50 kilobit/secon
 d) data rate of the ARPANET also required the development of speech compre
 ssion algorithms\nin order to squeeze the packet voice stream through the 
 network.\n\nThese elements have evolved over the decades since\, but the s
 ame\ntechnologies enable our present-day VoIP and teleconferencing service
 s\nover the Internet.\n\nOne highlight of this talk will be the showing of
  an entertaining movie shot on film in 1978 to demonstrate a\nmulti-party 
 teleconference over the packet network.\n\nSpeaker(s): Stephen L. Casner\,
  \n\nColorado Springs\, Colorado\, United States\, Virtual: https://events
 .vtools.ieee.org/m/273537
LOCATION:Colorado Springs\, Colorado\, United States\, Virtual: https://eve
 nts.vtools.ieee.org/m/273537
ORGANIZER:genef@ieee.org
SEQUENCE:9
SUMMARY:PPCS June 2021 Virtual Meeting: A Brief Prehistory of Voice over IP
  with Steve Casner
URL;VALUE=URI:https://events.vtools.ieee.org/m/273537
X-ALT-DESC:Description: &lt;br /&gt;&lt;p&gt;&lt;span style=&quot;font-size: 14pt\;&quot;&gt;&lt;strong&gt;&amp;n
 bsp\;A Brief Prehistory of Voice over IP -- &lt;span style=&quot;font-size: 12pt\;
 &quot;&gt;&lt;em&gt;with &lt;span style=&quot;font-size: 14pt\;&quot;&gt;Steve Casner&lt;/span&gt; co-recipien
 t of &lt;span style=&quot;font-size: 14pt\;&quot;&gt;IEEE 2020 Internet Award&lt;/span&gt;.&lt;/em&gt;
 &lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;\n&lt;p&gt;This talk explores the development of &lt;str
 ong&gt;interactive voice communication&lt;/strong&gt;&lt;br /&gt;over&lt;strong&gt; &lt;em&gt;packet-
 switched networks&lt;/em&gt;&lt;/strong&gt; beginning in 1974 with experiments over&lt;br
  /&gt;the &lt;strong&gt;ARPANET&lt;/strong&gt; -- &lt;em&gt;before&lt;/em&gt; &lt;strong&gt;IP&lt;/strong&gt; and
  the &lt;strong&gt;Internet&lt;/strong&gt; were invented. &amp;nbsp\;&lt;/p&gt;\n&lt;p&gt;To achieve l
 ow-delay transmission required changing some &lt;strong&gt;&lt;em&gt;fundamental assum
 ptions&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;&lt;em&gt;about the service&lt;/em&gt; provided by the netwo
 rk along with the &lt;strong&gt;&lt;em&gt;development&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;&lt;strong&gt;&lt;em&gt;o
 f new network protocols&lt;/em&gt;&lt;/strong&gt; to provide the different functions n
 eeded for&lt;br /&gt;&lt;strong&gt;&lt;em&gt;real-time communication.&lt;/em&gt; &lt;/strong&gt;&amp;nbsp\;&lt;
 /p&gt;\n&lt;p&gt;The low (&lt;strong&gt;50 kilobit/second&lt;/strong&gt;) data rate of the &lt;str
 ong&gt;ARPANET&lt;/strong&gt; also required the development of &lt;strong&gt;&lt;em&gt;speech c
 ompression algorithms&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;in order to &lt;strong&gt;&lt;em&gt;squeeze t
 he packet voice stream&lt;/em&gt;&lt;/strong&gt; through the network.&lt;/p&gt;\n&lt;p&gt;These el
 ements have evolved over the decades since\, but &lt;strong&gt;&lt;em&gt;the same&lt;/em&gt;
 &lt;/strong&gt;&lt;br /&gt;&lt;strong&gt;&lt;em&gt;technologies enable our present-day VoIP and te
 leconferencing services&lt;/em&gt;&lt;/strong&gt;&lt;br /&gt;&lt;strong&gt;&lt;em&gt;over the Internet. 
 &amp;nbsp\;&lt;/em&gt;&lt;/strong&gt;&lt;/p&gt;\n&lt;p&gt;One &lt;strong&gt;highlight&lt;/strong&gt; of this talk 
 will be the showing of an &lt;strong&gt;entertaining movie shot on film in 1978&lt;
 /strong&gt; to demonstrate a&lt;br /&gt;&lt;strong&gt;multi-party teleconference&lt;/strong&gt;
  over the packet network.&lt;/p&gt;
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