[ih] Separation of TCP and IP

[Ole Jacobsen]

I personally participated in packet voice experiments
between the Norwegian Defence Research Establishment (NDRE),
MIT Lincoln Labs, University College London (UCL), and
University of Southern California, Information Sciences Institute
(USC-ISI) in the 1976-1977 timeframe. In fact I still have audio
recordings on cassette tape from some of these tests which linked
NDRE to the ARPANET via SATNET. Vint probably has more details,
as would Steve Casner.

Cheers,

Ole


> On Jun 24, 2022, at 06:47, Craig Partridge via Internet-history <internet-history at elists.isoc.org> wrote:
> 
> Voice over Ethernet existed from the 1970s.  You can get a sense by looking
> at the citations in a 1983 paper on the subject by Gonsalves in ACM SIGCOMM
> '83.
> 
> Multiple papers by Danny on his Voice over Internet work ("Packet
> communication of online speech", AFIPS '81; "Issues in transnet packetized
> voice communication" in ACM SIGCOMM '77).  His Internet Hall of Fame
> citation notes his work in this area started in 1973.  I once saw a video,
> showing Danny running around Marina del Rey, using packet voice.
> 
> Rettberg and team also created the Voice Funnel, attached to ARPANET in
> 1979 (BBN report 4098).
> 
> Work persisted through the 1980s and 1990s.  The Wideband network (Edmond
> et al in ACM SIGCOMM '90) was used for experiments in multimedia
> conferencing from the late 1980s on (Claudio Topolcic and, I think, Steve
> Casner were critical here).
> 
> Van Jacobson, who was a user of the Wideband Network, and interested in
> creating more flexible services over the regular Internet (Wideband had a
> special MAC layer) and several others created the MBone with VIC and VAT in
> the 1990s.
> 
> VOIP built on a huge reservoir of prior experience.
> 
> Craig
> 
> 
> 
> On Thu, Jun 23, 2022 at 9:28 PM Grant Taylor via Internet-history <
> internet-history at elists.isoc.org> wrote:
> 
>> On 6/23/22 1:15 AM, Noel Chiappa via Internet-history wrote:
>>> These are the impressions that I retain: that Danny was _a_
>>> significant force in making this happen, because of his voice work
>>> - for which timeliness was important, not correctness. (In IEN-67,
>>> "Arrangements - Cohen" Danny "complain[ed] about TCP-3 becoming all
>>> things to all people".) Is that correct? (If so, it's probably his
>>> most significant technical legacy.) For others, I think Dave Reed
>>> may have been in favour too (perhaps he'd already started to think
>>> of RPC-like things). And perhaps some of the other voice people -
>>> e.g. Forgie? And I'm sure the PARC guys were trying to throw a few
>>> clues our way. Am I missing anyone? Did anyone stand out as being a
>>> bigger influence than the rest?
>> 
>> Can anyone give, or point to a quick (1~3 paragraph) summary of said
>> voice work?
>> 
>> I remember VoIP landing on the scene I was in during the early 2000s,
>> but I don't remember hearing about it before that.
>> 
>> 
>> 
>> --
>> Grant. . . .
>> unix || die
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>> 
> 
> 
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Ole J. Jacobsen
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