[VoIP] Spotted On Ebay

Mon Feb 4 01:11:30 CST 2008

Yeah, I know about the "Telephony" book by Atkinson. I know someone with a 5-volume set called "Telephony" but I don't think it's by Atkinson, according to reports I've received, as the Atkinson one didn't have 5 volumes. But this 5-volume set was described to me as "the bible of step-by-step." I haven't been able to get in contact with the guy since I bought the final selector from him, but I plan on nabbing that 5-volume set he has. Funds permitting, of course.

> Date: Mon, 4 Feb 2008 19:26:51 +1300
> From: gijones at clear.net.nz
> To: voip at ckts.info
> Subject: Re: [VoIP] Spotted On Ebay
> 
> So long as its are operational you should be able to make something out of 
> the large uniselector.
> 
> You might be able to make a subscribers linefinder but you would really need 
> more then one.
> 
> With a bit of imagination you could possibly wire it so you have  an 
> extension connected to some of  the set of contacts around the edge .
> Then with some relays for subscriber line relay and cut off relay. You could 
> wire it so when any extension is picked up the uniselector hunts until
> it finds that extension.  Then it connects to your one final selector 
> allowing you to have a two digit numbering system for your telephone 
> exchange.
> 
> Another use maybe in what they call a pulse set.  These are normaly where 
> the ring tones, dial tones etc can be feed to different contatcs on the 
> uniselector.
> For example on one set of contacts around the outside you might wire the 
> contacts together in certain groups to give ring tone cadence.  Eg 5 
> contacts next to each other might be wired to the ring tone and each other 
> then the next two aren't then the next 5 are etc.  So for five steps the 
> wiper tag has ring tone on it you can use to ring the called phone.  The 
> next two give silence then 5 steps give ringing etc
> You get the idea.
> 
> But if no one has told you already try and get hold of a book called 
> "telephony"  volume 2 Automatic Exchange systems by Atkinson .  There are 
> earlier editions known by the authors name Herbert, Proctor.  An edition 
> from 1960's or '70's will be a great help to you.  Apparently it use to be 
> the bible for exchange technicians.
> It goes through explanations of different basic circuits in the exchange 
> such as hunting, testing, holding circuits, how selectors work etc.
> 
> It is well worth getting hold of a copy you will learn a lot from it and can 
> use it to help you design a basic mini exchange.
> You may have to use one of those international secondhand book sellers on 
> the web.
> But if you buy one book to help you, you need Atkinson.
> 
> I am still hunting for parts to build a model exchange myself.  But as I am 
> a volunteer in Telecommunications at a museuem I get to play with old gear 
> and have experienced techs around me to teach me.
> 
> Good luck I look forward to calling into your exchange.
> 
> Brent
> 
> 
> 
> 
> ----- Original Message ----- 
> From: "Mad Mark" <madmanmarkau at hotmail.com>
> To: "Voice Over IP Tandem for Analog Switches" <voip at ckts.info>
> Sent: Monday, February 04, 2008 6:09 PM
> Subject: Re: [VoIP] Spotted On Ebay
> 
> 
> >
> > Yeah, I'm in Oz, so shipping is fairly cheap. I'll bid on them - if they 
> > don't work/can't be used, they can always go into my collection as show 
> > pieces or something.
> >
> > And I believe the seller doesn't know too much about them. I *think* (s)he 
> > is auctioning off his/her deceased uncles possessions, and is not into 
> > telephone equipment themselves.
> >
> > Thanks.
> >
> >> Date: Sun, 3 Feb 2008 23:56:33 -0500
> >> From: stfkerman at jps.net
> >> To: voip at ckts.info
> >> Subject: Re: [VoIP] Spotted On Ebay
> >>
> >> My thoughts are that the photos are so small that even though I am
> >> somewhat familiar with British equipment and highly familiar with North
> >> American equipment, IMO not enough can be determined about them to be
> >> confident that they would be useful.
> >>
> >> Very specific details about these kinds of parts determines whether they
> >> will fit a specific application.   If you had seen these earlier and
> >> gotten more info from the seller, that might have given more certainty.
> >>
> >> Are you in Oz, such that they would not need to be shipped
> >> internationally?  I should add that I don't know what the exchange rate
> >> is so I can't judge the pricing.
> >>
> >> Steph
> >>
> >> Mad Mark wrote:
> >> > Someone on the CNET-UK-I mailing list spotted these items on E-Bay:
> >> >
> >> > 130193124276
> >> > 130193124377
> >> > 130193124440
> >> >
> >> > I'm just wondering if they could be used in conjunction with my 
> >> > Strowger 2000-type rotary final selector, to maybe construct some kind 
> >> > of frankenswitch. There's only about 4:30 left on the auctions, so I'm 
> >> > hurrying.
> >> >
> >> > Any thoughts, anyone?
> >> >
> >> >
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