eli@spdcc.COM (Steve Elias) (12/08/89)
somewhen, Xerox PARC did some experiments called "Etherphone".
has anyone heard of this?
or.. could anyone point me to a documents person/index at Xerox
where i might be able to locate information on Etherphone?
thanks...
--
-- Steve Elias ; eli@spdcc.com ; 6179325598 ; 5086717556 ; { *disclaimer(); }
santi@ixos.UUCP (Michael Santifaller) (12/15/89)
There is this book with the proceedings of a LAN conference, its title is "Local Area Networks" I believe, and the editor is Tony West from Sun, who was with IBM in Geneva, then. It has been published in the early '80. The book contains several articles about LANs, obviously, including one by Shoch (??) about an experiment with voice over Ethernet (3MB Ethernet at that time). The whole article sounded very interesting and encouraging, since I had never believed that Ethernet was suitable for voice at all. Sorry, that I can't be of more help with the exact title and/or publisher. Michael
brian@ucsd.Edu (Brian Kantor) (12/17/89)
Not directly relevant, but it's proven to be quite easy to wire a telephone handset to my SparcStation and talk across the building over the ethernet using the CODEC chip that's built in the SS1. The delay is a bit like a satellite link and completely controllable by adjusting the buffering size. It even has sidetone. It's lots of fun to rcp into a coworker's machine and suddenly his workstation starts saying "Toto, I've a feeling we're not in Kansas anymore!" Anyone attempting to do this as a serious hack must consider a squelch algorithm so that you're not sending lots of zero-volume packets across the Ethernet. No doubt I'll soon get a nastygram from someone for adding to the traffic on the internet.... - Brian
hlison@bbn.com (Herb Lison) (12/18/89)
santi@ixos.UUCP (Michael Santifaller) writes: > There is this book with the proceedings of a LAN conference, > its title is "Local Area Networks" I believe, and the editor > is Tony West from Sun, who was with IBM in Geneva, then. > It has been published in the early '80. The book contains several > articles about LANs, obviously, including one by Shoch (??) about > an experiment with voice over Ethernet (3MB Ethernet at that time). > The whole article sounded very interesting and encouraging, > since I had never believed that Ethernet was suitable for > voice at all. As part of our commercial software development, we implemented a voice capability in our BBN/Slate software package which makes use of a voice server in an IBM PC, accessed over the ethernet via the Sun PC-NFS TCP/IP toolkit. The voice server uses about 32kbs, and so far, performance does not seem to be a problem, even on a loaded network. Herb Lison
blais@ut-emx.UUCP (Donald Blais) (12/19/89)
In article <382@ixos.UUCP> santi@ixos.UUCP (Michael Santifaller) writes: > There is this book with the proceedings of a LAN conference, > its title is "Local Area Networks" I believe, and the editor > is Tony West from Sun, who was with IBM in Geneva, then. > It has been published in the early '80. The book contains several > articles about LANs, obviously, including one by Shoch (??) about > an experiment with voice over Ethernet (3MB Ethernet at that time). From UTCAT (UTexas online card catalog)... Local networks for computer communications: proceedings of the IFIP Working Group 6.4 International Workshop on Local Networks, organized by IBM, Zurich, Switzerland, August 27-29, 1980 /edited by Anthony West and Philippe Janson. Amsterdam; New York: North-Holland, 1981. -- Donald E. Blais INTERNET: blais@emx.utexas.edu Computation Center BITNET: BLAIS@UTAIVC University of Texas UUCP: ... !cs.utexas.edu!ut-emx!blais Austin TX 78712 PHONE: (512) 471-3241