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Article #99

Re: Voice over the net...

#99
From: Jon Thackray
Date: Wed, 01 Mar 1995 11:52
38 lines
2516 bytes
James CE Johnson writes:
>> I know that everyone is doing voice over the net these days, but I've
>> got a couple of questions for the experts out there...
>> 
>> I've found mtalk and xztalk that I presume are Unix <-> Unix.
>> I've heard about a few winsock progs that are Windoze <-> Windoze.
>> 
>> Has anybody had any experience with voice over TCP/IP between Linux
>> and Windoze?

   I presume you're talking about the newly released product for Windoze,
   at http://www.vocaltec.com? It compresses voice enough for conversation
   to be maintained over a 14.4k modem -- it should be easy to write
   something for Linux which does the same thing.

   It caused quite a storm over here, getting a review in the Sunday
   Times, which says BT and other long-distance providers are 'worried'
   about voice over IP.

>> I'd appreciate any info that is available.  I'll also be glad
>> to put together a FAQ or How-To if someone will just give me
>> a head-start...

   I had a look at 'mtalk', 'ztalk' and 'radio' (all from sunsite) but
   none of them is quite like this Windoze product. More specifically,
   none of them send data as it is being sampled by a soundcard.

   Is there a defined 'standard' for voice over IP at low data rates?
   (I'm not talking about 'Mbone' here -- that's out for most people).
   Certainly using the GSM library, it should be possible to write an
   equivalent fairly easily for Linux.

Anyone game? I would, if I had the time...

Jon.
-- 
// Jon Thackray, Cambridge,         Work:  jrmt@uk.gdscorp.com
// England.   ><>            Rest & Play:  jrmt@froggy.demon.co.uk
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References: <1995Feb21.025601.21592@tragus.atl.ga.us>

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From: jrmt@uk.gdscorp.com (Jon Thackray)
Newsgroups: comp.os.linux.development.apps,demon.tech.unix
Subject: Re: Voice over the net...
Date: 1 Mar 1995 11:52:05 GMT
Organization: Graphic Data Systems Ltd, Cambridge UK
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