[VoIP] More "Authentic" CNET

[Jayson Smith]

Agreed, Dennis. I think to get a truly authentic CNET, we'd have to reinvent 
the old analog telephone network. The problem, as I see it, is that the 
Internet is, by its very nature, a digital medium, while what we're wanting 
to simulate is an analog medium. Imho, any attempt to simulate authentic 
telephone networks over the Internet would be just that, a simulation. You 
wouldn't get any unpredictable analog things like crosstalk, signaling 
crosstalk, other cool noises, etc. Even if those things were deliberately 
built into the network, we'd still know they were deliberate, and not a 
natural occurrence.
     On the subject of dial pulsing noise, Doug, office code 366, is one 
person who does allow dial pulsing noise to pass back to the originating 
caller. And as for canned RP noise, there is an RP simulator which uses bits 
and pieces from an Evan Doorbell recording. So, while it's technically 
canned sound, since the noises themselves are not being generated on the 
fly, the sequence of the noises is being determined on the fly, and in my 
view, that makes it not totally canned.
Jayson

----- Original Message ----- 
From: "Dennis D Hock" <hockd at dteenergy.com>
To: "Voice Over IP Tandem for Analog Switches" <voip at ckts.info>
Cc: "Voice Over IP Tandem for Analog Switches" <voip at ckts.info>
Sent: Thursday, December 06, 2007 5:12 AM
Subject: Re: [VoIP] More "Authentic" CNET


>
> Well said Keelan.
>
> Some might argue that CNET needs to be able to replicate the full gamut of
> the original experience, while we seem to be forgetting just how far we
> have all collectively managed to come in the span of a few short years (2
> going on 3 by my count).  Given time and motivation I think the experience
> will most certainly continue to improve and be added to.
>
> It may be that now that we are able to link to each other we have reached 
> a
> new conundrum in that what do we talk about and who can we talk to? This 
> is
> not much different in my opinion than any other hobby in which much of the
> joy and fun comes in the construction.   A case in point being the amatuer
> radio operator who linking with some one in another country chats about 
> the
> weather and the equipment they each have or the model railroader who 
> builds
> mutltiple layouts or continues to build that layout that is never quite
> finished.  Some of the fun is in the building.
>
> One last thing as we all have varying memories and fantasies of what the
> network is, was, should have been , could have been, the main point I 
> think
> is what other commercial company has managed to expand a network so 
> quickly
> onto the international scene as this group has?  After all this is all
> being done as a labor of love by many who have varying interests in the
> many aspects this offers us.
>
> I think we should set back an=t this time of year and reflect on where we
> are and how far we have come.
>
> Just my two cents.
>
> Dennis Hock
>
> -----voip-bounces at ckts.info wrote: -----
>
>
> To: Voice Over IP Tandem for Analog Switches <voip at ckts.info>
> From: Keelan Lightfoot <keelan at mail.grenander.com>
> Sent by: voip-bounces at ckts.info
> Date: 12/06/2007 01:44AM
> Subject: Re: [VoIP] More "Authentic" CNET
>
>> It sounds like you want to reinvent Asterisk. We have drivers for
>> sound
>> cards to do just that, using the g.711 or other coding schemes
>> built in
>> to Asterisk.
>
> The "problem" is that Asterisk passes abstract signaling information
> between nodes; "so-and-so dialed 1235, the person at 12345 is busy,
> etc." What I'm suggesting is a method of passing very basic state
> information (virtual E&M leads) between collectors' switches as
> though they were connected via wire trunks (or carrier). If I dial
> one of the extensions on a collectors step switch connected to CNET,
> I don't hear the switch until asterisk has finished pulsing out the
> dialed digits. I may as well be listening to a recording. some
> members have even gone so far as to inject canned RP noise into the
> connection, just to make things a bit more lively (I suppose).
>
>>>> supervision/dial pulsing could either be passed as out of band "DC"
>>>> signals created or received by extra hardware plugged into the
>>>> server, or as in band SF tones with detection either handled in
>>>> hardware or software. The interface between sound card and switch
>>>> could be executed using something like a Zarlink SLIC or COIC to
>>>> do 2-
>>>> wire to 4-wire conversion, and handle signaling.
>>>>
>> Yes, we have that. What's the purpose?
>
> I was listening to the radio a couple days ago, and a couple
> commentators were critiquing TV christmas specials. One of the
> commentators brought up "It's a Wonderful Life", and argued against
> it on the grounds that it was based on an impractical premise, that
> it was based fantasy and lacked realism. The other commentator stated
> something along the lines of "This is a holiday where one of the main
> events is fat man squeezing down a chimney, to give billions of
> people gifts in the short span of an evening, and you want to talk
> about practicality and reality?"
>
> The purpose would be more of an academic exercise. The Asterisk CNET
> is sterile and predictable. Once you've run through the list of
> numbers and listened to everyone's ring-no-answer, asterisk
> milliwatt, or busy tone lines, you've pretty much played it out.
>
> If we were concerned about practicality or purpose, we would sell our
> switches for scrap and invest the few dollars earned in a mutual
> fund. The spare space in our basements could be used for more
> practical things like storage.
>
> - Keelan
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