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Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
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20th Dec 2015, 12:10 am | #1 |
Octode
Join Date: Feb 2010
Location: Leicester, UK.
Posts: 1,433
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Pulse dial exchange system?
Hi, I have a few old telephones and have always wanted to set up three or so around the house. I just wondered whether there is an exchange system that can support pulse dialing? I really don't know much about phones so please do excuse my ignorance!
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20th Dec 2015, 1:35 pm | #2 |
Octode
Join Date: Jan 2013
Location: Barnsley, South Yorkshire, UK.
Posts: 1,517
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Re: Pulse dial exchange system?
There used to be some simple Strowger/Uniselector type made/supplied, if I remember correctly, by Telephone Rentals and Reliance. These were housed in 'bread bin' sized boxes and typically had less than 10 lines. These were very common at supermarkets, small businesses, collieries (remember them?), etc where around half a dozen extensions were used as, in effect, intercoms. Typically they were found with 706/746 style or similar phones on them. Usually they did not interconnect with the BT/POTel system, more from legislative nonsense than anything else; a simple transmission bridge could easily be contructed to achieve connexion. For something smaller and solid state the 'London 12' and associated systems could, if I recall, handle LD as well as DTMF. I believe the Japanese Panasonic systems, though very good and often seen surplus in office sales, utilise DTMF only.
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20th Dec 2015, 2:04 pm | #3 |
Hexode
Join Date: Apr 2012
Location: Chorley, Lancashire, UK.
Posts: 260
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Re: Pulse dial exchange system?
I have set up a similar system earlier this year. I used a BT Revelation wired from the house NTE5 box with a plug and socket so that all the old phones could be disconnected leaving the modern system as was. This allayed my wife's concern! The BT Revelation box was easy and cheap to source from e-bay. All the documentation is available FOC on the web. If you search this site you will find the relevant threads. I was a novice to old phones but found this straightforward to set up.
Mark |
20th Dec 2015, 2:32 pm | #4 |
Heptode
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 643
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Re: Pulse dial exchange system?
Some years ago, I had the same "problem" and ended up with buying from UK a Panasonic KX-T616 and one programming telephone for this. Later I have seen many other options, but still the KX-T308 or KX-T616 seems to be the most reliable and easy to set up system accepting pulse and tone dialing. The UK version has UK (double) ringing when someone calls from an external line, and single rings on internal calls. The non UK versions does it the opposite way.
An exchange like this may be connected to the old telephone line, to an ip telephone adapter or a pc to phone adapter. In UK you have plenty of members of C*NET and it is free. It is lots of other free or lo-cost networks. (Free if you have internet, and buy the adapter) dsk |
20th Dec 2015, 4:01 pm | #5 |
Octode
Join Date: Aug 2005
Location: Saltburn-East, Cleveland, UK.
Posts: 1,786
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Re: Pulse dial exchange system?
Hi,
A BT Revelation PBX would be ideal for connecting your pulse dialling phones to however they do seem to be increasing in price these days. One advantage of the Revelation is that it will convert the pulse train to DTMF if you wish to use your phones to make calls via the PSTN. If you are only interested in using the phones "internally" a Minimaster 3 would fit the bill but these are becoming quite rare now. I have no experience of the Panasonic systems already mentioned but believe that they too will interface with Pulse dialling telephones. Regards Andrew |
20th Dec 2015, 4:22 pm | #6 |
Dekatron
Join Date: Feb 2005
Location: West Cumbria (CA13), UK
Posts: 6,130
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Re: Pulse dial exchange system?
From the original question, I am now unsure whether EF80 simply wants to be able to use loop disconnect (pulse) telephones or is looking for a PBX to enable 'phones around the house to call each other. Of the various PBXes I have, all support LD 'phones connected to their extensions, and most also support DTMF, with their onward connection selectable between LD and DTMF. If it's simply a matter of using LD 'phones, it may well be that they can be connected direct to the telephone line. Although there are some providers that are DTMF only, most do still support LD.
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20th Dec 2015, 4:39 pm | #7 |
Heptode
Join Date: Jul 2007
Location: Flintshire, UK.
Posts: 707
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Re: Pulse dial exchange system?
I think it still comes down to the same thing - a Panasonic system or its like. System or its like will provide either service. Most Panasonic systems in the KX-T series are fine. I've picked up a KXT616 for less than £20 inc carriage. The ones to look for are the Panasonic KX-T308, KX-T616 (or even the KX-T 1232 if you need that many extensions.!) Or the later KXT206, The KXTA6-24 which initially comes as 3 lines plus 8 extensions and can be expanded up to 6 plus 24. Then came the KXTEA308 (or the overseas version KXTEB308) which is non-extensible or the KXTEA824. These have a three digit numbering scheme usually in the 2XX series where you can choose your own numbers in that range. They all do Pulse to Tone conversion - so you can send out DTMF on your line to the public network or our own 'Collectors Network - CNet' (or both with different access codes!). The programming on both the Panasonic and BT systems is done with a 'system=phone'. Latter systems can be programmed with a PC.
There are other smaller systems but they don't often come up and often have non-UK ringing, tones and dialling codes. |
20th Dec 2015, 4:53 pm | #8 |
Heptode
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 643
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Re: Pulse dial exchange system?
It is different versions of the panasonic's, but here is a link to one manual: http://www.htcnetworks.co.uk/308%20I...n%20manual.PDF
dsk |
20th Dec 2015, 5:22 pm | #9 |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,861
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Re: Pulse dial exchange system?
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20th Dec 2015, 5:57 pm | #10 |
Heptode
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 643
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Re: Pulse dial exchange system?
Not as far as I know, but Ian here has the full honor of getting me interested in using an exchange for this. Later I have gone totally bananas, I have a fully mechanical exchange running in the garage, so it is a great risk starting with this.
dsk |
20th Dec 2015, 6:16 pm | #11 |
Octode
Join Date: Aug 2005
Location: Saltburn-East, Cleveland, UK.
Posts: 1,786
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Re: Pulse dial exchange system?
Not that I am aware, other than perhaps the original 1 + 6 versions (which are rare (ish) anyhow) as I'm not sure if they can be expanded to a maximum of 4+12 like you are able to do with the 2+6 variants.
Andrew |
21st Dec 2015, 2:14 pm | #12 |
Hexode
Join Date: Jun 2011
Location: Glossop, Derbyshire, UK.
Posts: 487
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Re: Pulse dial exchange system?
Hi You could try a Nortel opt 11 mini these have both dtmf or 10pps working on a analogue line card you will need a line card,cpu,and exch card if you want to connect to PSTN ( the extn card has 16 ports)
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21st Dec 2015, 4:09 pm | #13 |
Octode
Join Date: Feb 2010
Location: Leicester, UK.
Posts: 1,433
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Re: Pulse dial exchange system?
Thanks for the help everyone! I do intend to use the phones to call each other internally. We haven't had an external line for a while now as we all just use mobiles. I will keep a look out for the systems suggested. We use a panasonic type at work that has been in place for a few years. There was another type that was used before that would have been fitted around 1985 so I may have a look to see if it is sitting unused anywhere, we still have a few of the old phones on the walls in the stock room and it was maintained by a company called Sterry. If I can find the system I'll see if they'll be kind enough to let me have it, I believe it may also be a panasonic type.
Cheers! |
21st Dec 2015, 5:04 pm | #14 |
Dekatron
Join Date: May 2008
Location: Derby, UK.
Posts: 7,735
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Re: Pulse dial exchange system?
It's worth knowing that the Digium TDM410P FXO / FXS card for Asterisk supports pulse-dialling, so you could actually build your own telephone exchange with an old PC. There are vendors on the usual site who sell work-alikes of the Digium card.
One such card with three FXS modules (to ring an analogue telephone) and one FXO module (to connect to an analogue exchange line) will form the basis of a respectable system that can be expanded in future. And you can configure it to respond in any way you like, to any dialled number; this makes it very easy to simulate the old clicky-clicky exchanges (I have configured mine so I can call my parents using just their old 4-figure number) or set up your own services such as dial-a-disc or bedtime stories. Yours will always start at the beginning of the recording, too I would never rely on the cheap clone cards in any business-critical application, but they are more than fine for low-usage, experimental purposes.
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23rd Dec 2015, 1:13 am | #15 | |
Nonode
Join Date: Oct 2014
Location: West Midlands, UK.
Posts: 2,181
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Re: Pulse dial exchange system?
Quote:
First problem for anyone working on a Panasonic system is how to read the manual. I've extensive factory training, and if you have problems. PM,me, and I'll try to translate Panasonicese into English. |
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15th Feb 2016, 12:28 pm | #16 |
Octode
Join Date: Feb 2010
Location: Leicester, UK.
Posts: 1,433
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Re: Pulse dial exchange system?
Hi, I have now managed to get hold of a BT Revelation system. Could anyone help me out by telling me how to connect up the phones? As I am using pulse dial phones the leads are coloured red, green, white and blue. I do have the BT manual but most of means nothing to me if I am going to be honest as I have never really worked on them. If anyone could simplify it for me then that would be great as a starting point!
Regards Here are some photos |
15th Feb 2016, 1:08 pm | #17 |
Heptode
Join Date: Jan 2008
Location: Hakadal, Norway
Posts: 643
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Re: Pulse dial exchange system?
I am pretty sure A and B equals an ordinary line. If You have a 2 wire telephone this should be OK, else you should have a master-socket with capacitor. (C and D are for system telephones)
dsk |
15th Feb 2016, 3:19 pm | #18 |
Dekatron
Join Date: Feb 2005
Location: West Cumbria (CA13), UK
Posts: 6,130
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Re: Pulse dial exchange system?
That's certainly how I have my Revelation wired - successfully.
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15th Feb 2016, 3:29 pm | #19 |
Dekatron
Join Date: May 2008
Location: Derby, UK.
Posts: 7,735
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Re: Pulse dial exchange system?
Don't forget that you need to connect each telephone via a master socket, if you want it to ring... although you could run a master and one or more secondaries from the same output, if for any reason you wanted multiple phones to share the same PABX line.
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15th Feb 2016, 9:16 pm | #20 |
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,273
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Re: Pulse dial exchange system?
here's the table for wiring the CCU to the extension sockets.
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