digitalcourage.social

IT NewsWhen the UK’s Telephone Network Went Digital With System X - The switch from analog telephone exchanges to a purely digital network meant a rev... - <a href="https://hackaday.com/2025/07/24/when-the-uks-telephone-network-went-digital-with-system-x/" rel="nofollow noopener" translate="no" target="_blank">https://hackaday.com/2025/07/24/when-the-uks-telephone-network-went-digital-with-system-x/</a> <a href="https://schleuss.online/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a> <a href="https://schleuss.online/tags/history" class="mention hashtag" rel="nofollow noopener" target="_blank">#history</a>

Pyrzout :vm:When the UK’s Telephone Network Went Digital With System X <a href="https://hackaday.com/2025/07/24/when-the-uks-telephone-network-went-digital-with-system-x/" rel="nofollow noopener" translate="no" target="_blank">https://hackaday.com/2025/07/24/when-the-uks-telephone-network-went-digital-with-system-x/</a> <a href="https://social.skynetcloud.site/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a> <a href="https://social.skynetcloud.site/tags/History" class="mention hashtag" rel="nofollow noopener" target="_blank">#History</a>

This Is My GlasgowThe Hope Street elevation of the former Douglas Telephone Exchange building in central Glasgow. It was designed in a Baroque style, with the left hand section being constructed in 1910. The right hand section wasn't built until 1938, but maintains the same style, despite this 28 year gap.<a href="https://mastodon.scot/tags/glasgow" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgow</a> <a href="https://mastodon.scot/tags/architecture" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecture</a> <a href="https://mastodon.scot/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a> <a href="https://mastodon.scot/tags/architecturephotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecturephotography</a>

This Is My GlasgowThe Bell Telephone Exchange on Ingram Street in Glasgow. While dated 1937, it actually opened in 1936, and served eastern Central Glasgow. Before All-Figure Numbers was introduced in the 1960s, it used the extension BELL.<a href="https://mastodon.scot/tags/glasgow" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgow</a> <a href="https://mastodon.scot/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a> <a href="https://mastodon.scot/tags/architecture" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecture</a> <a href="https://mastodon.scot/tags/glasgowbuildings" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgowbuildings</a> <a href="https://mastodon.scot/tags/architecturephotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecturephotography</a>

lpbkdotnetMy <a href="https://mstdn.social/tags/TelephoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#TelephoneExchange</a> shed has gained a new friend… but they need a name!Any suggestions?Alliteration, puns (and boosts) very much welcome

lpbkdotnetYou know it’s going well if I’ve had to get the diagrams out…<a href="https://mstdn.social/tags/telephone" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephone</a> <a href="https://mstdn.social/tags/phone" class="mention hashtag" rel="nofollow noopener" target="_blank">#phone</a> <a href="https://mstdn.social/tags/vintageTelephone" class="mention hashtag" rel="nofollow noopener" target="_blank">#vintageTelephone</a> <a href="https://mstdn.social/tags/vintagePhone" class="mention hashtag" rel="nofollow noopener" target="_blank">#vintagePhone</a> <a href="https://mstdn.social/tags/strowger" class="mention hashtag" rel="nofollow noopener" target="_blank">#strowger</a> <a href="https://mstdn.social/tags/TelephoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#TelephoneExchange</a>

lpbkdotnetIs anyone able to lay their hands on a firmware image for a Samsung Ubigate IBG1004?It’s an <a href="https://mstdn.social/tags/isdn" class="mention hashtag" rel="nofollow noopener" target="_blank">#isdn</a> to <a href="https://mstdn.social/tags/sip" class="mention hashtag" rel="nofollow noopener" target="_blank">#sip</a> <a href="https://mstdn.social/tags/telephone" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephone</a> gateway, and the one I’ve got seems to be corrupt and won’t decompress.My usual haunts for firmware images are coming up blank.The filename will be something like `iBG1004_Advanced_1.6.1.9.Z` - but I'm really not too fussy about the version number!Please boost if you think you have followers that can help!<a href="https://mstdn.social/tags/TelephoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#TelephoneExchange</a> <a href="https://mstdn.social/tags/phone" class="mention hashtag" rel="nofollow noopener" target="_blank">#phone</a> <a href="https://mstdn.social/tags/phoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#phoneExchange</a> <a href="https://mstdn.social/tags/PABX" class="mention hashtag" rel="nofollow noopener" target="_blank">#PABX</a> <a href="https://mstdn.social/tags/PBX" class="mention hashtag" rel="nofollow noopener" target="_blank">#PBX</a> <a href="https://mstdn.social/tags/voip" class="mention hashtag" rel="nofollow noopener" target="_blank">#voip</a>

lpbkdotnetWelcome to the <a href="https://mstdn.social/tags/TelephoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#TelephoneExchange</a> shed my new beepyboopy friend!This is a “GPO Modem 2B” - a <a href="https://mstdn.social/tags/dialup" class="mention hashtag" rel="nofollow noopener" target="_blank">#dialup</a> <a href="https://mstdn.social/tags/modem" class="mention hashtag" rel="nofollow noopener" target="_blank">#modem</a>… phone line in, RS232 out at a whopping 300bps!It’s all discrete components (no ICs here!) and beautifully built with all the diodes/resistors mounted on little plastic carriers.The modulator, demodulator etc are on separate, pull-out cardsIt’s a gorgeous chunk of engineering, that I’ll be carefully powering up over the next few weeks!Thanks for the swap <a href="https://mastodon.social/@anachrocomputer" class="u-url mention" rel="nofollow noopener" target="_blank">@anachrocomputer</a>

This Is My GlasgowTelephone House on Pitt Street in Glasgow. Opened in 1937, it served at the city's Central Telephone Exchange. It handled numbers with the code CEN, until All-Figure Numbers replaced the letter-based codes for exchanges in the 1960s. <a href="https://mastodon.scot/tags/glasgow" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgow</a> <a href="https://mastodon.scot/tags/architecture" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecture</a> <a href="https://mastodon.scot/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a> <a href="https://mastodon.scot/tags/architecturephotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecturephotography</a> <a href="https://mastodon.scot/tags/glasgowbuildings" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgowbuildings</a>

This Is My GlasgowThe former Bridgeton Manual Telephone Exchange on Cubie Street in Glasgow. Designed by William Thomas Oldrieve in an Edwardian Baroque style, it was built in 1910 by His Majesty's Office of Works to serve the Bridgeton, Dennistoun and Parkhead areas of rhe city.<a href="https://mastodon.scot/tags/glasgow" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgow</a> <a href="https://mastodon.scot/tags/architecture" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecture</a> <a href="https://mastodon.scot/tags/glasgowbuildings" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgowbuildings</a> <a href="https://mastodon.scot/tags/buildingphotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#buildingphotography</a> <a href="https://mastodon.scot/tags/architecturephotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecturephotography</a> <a href="https://mastodon.scot/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a>

This Is My GlasgowI love the granduer of this Neo-Baroque style 1930s telephone exchange in the Tradeston area of Glasgow. I'm sure there are many uses it could be put to, but instead it's been left empty and decaying for years.<a href="https://mastodon.scot/tags/glasgow" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgow</a> <a href="https://mastodon.scot/tags/architecture" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecture</a> <a href="https://mastodon.scot/tags/glasgowbuildings" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgowbuildings</a> <a href="https://mastodon.scot/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a> <a href="https://mastodon.scot/tags/tradeston" class="mention hashtag" rel="nofollow noopener" target="_blank">#tradeston</a> <a href="https://mastodon.scot/tags/architecturephotography" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecturephotography</a>

lpbkdotnetThe (extensive) phone system in my house is reachable from the outside world, but I don't like anyone phoning me overnight.So I've made all the inbound routes time-of-day aware and they now play this message if you phone them overnight<a href="https://www.youtube.com/shorts/I0gfkRpPchc" rel="nofollow noopener" translate="no" target="_blank">https://www.youtube.com/shorts/I0gfkRpPchc</a><a href="https://mstdn.social/tags/asterisk" class="mention hashtag" rel="nofollow noopener" target="_blank">#asterisk</a> <a href="https://mstdn.social/tags/phones" class="mention hashtag" rel="nofollow noopener" target="_blank">#phones</a> <a href="https://mstdn.social/tags/telephones" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephones</a> <a href="https://mstdn.social/tags/voip" class="mention hashtag" rel="nofollow noopener" target="_blank">#voip</a> <a href="https://mstdn.social/tags/phoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#phoneExchange</a> <a href="https://mstdn.social/tags/telephoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneExchange</a>

Alex@rtnVFRmedia Suffolk UKHotline to <a href="https://social.tchncs.de/tags/Jesus" class="mention hashtag" rel="nofollow noopener" target="_blank">#Jesus</a> - combined <a href="https://social.tchncs.de/tags/church" class="mention hashtag" rel="nofollow noopener" target="_blank">#church</a> and <a href="https://social.tchncs.de/tags/TelephoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#TelephoneExchange</a> in <a href="https://social.tchncs.de/tags/Ipswich" class="mention hashtag" rel="nofollow noopener" target="_blank">#Ipswich</a> <a href="https://social.tchncs.de/tags/Suffolk" class="mention hashtag" rel="nofollow noopener" target="_blank">#Suffolk</a> <a href="https://social.tchncs.de/tags/England" class="mention hashtag" rel="nofollow noopener" target="_blank">#England</a> (in 1980s the electromechanical exchange was replaced by electronic and digital equipment so the old building wasn't needed any more, British Telecom sold it and it and was purchased by the church (an unusual Protestant denomination, inspired by USA churches, they must have been fairly well off to afford to buy this building)

This Is My GlasgowThe former Tradeston Telephone Exchange. Designed in a Neo-Baroque style, it was built around 1935. Due to changes in telecommunications technology, it became vacant in the 1970s, and despite a number of attempts to rejuvinate it over the years, it has lain pretty much abandoned and decaying ever since.<a href="https://mastodon.scot/tags/glasgow" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgow</a> <a href="https://mastodon.scot/tags/architecture" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecture</a> <a href="https://mastodon.scot/tags/glasgowbuildings" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgowbuildings</a> <a href="https://mastodon.scot/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a> <a href="https://mastodon.scot/tags/tradeston" class="mention hashtag" rel="nofollow noopener" target="_blank">#tradeston</a>

This Is My GlasgowThis seems to be because in the early days of the telephone, exchanges were built by smaller, independent telephone companies, and the Glasgow Corporation even had its own system. These weren't united into a national network run by the post office until around 1912, when George V was already on the throne. Thus, under his reign, many of the exchanges being used had private origins. Cont./<a href="https://mastodon.scot/tags/glasgow" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgow</a> <a href="https://mastodon.scot/tags/royalcypher" class="mention hashtag" rel="nofollow noopener" target="_blank">#royalcypher</a> <a href="https://mastodon.scot/tags/generalpostoffice" class="mention hashtag" rel="nofollow noopener" target="_blank">#generalpostoffice</a> <a href="https://mastodon.scot/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a> <a href="https://mastodon.scot/tags/glasgowcorporation" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgowcorporation</a> <a href="https://mastodon.scot/tags/glasgowhistory" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgowhistory</a>

This Is My GlasgowGlasgow has a lot of current and former telephone exchanges, but they have an odd feature I only just realised. Like post boxes, telephone exchanges often bear the royal cypher of the monarch who was on the throne when they were built. However, they only start doing this with Edward VIII, long after the first exchanges were built. Cont./<a href="https://mastodon.scot/tags/glasgow" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgow</a> <a href="https://mastodon.scot/tags/royalcypher" class="mention hashtag" rel="nofollow noopener" target="_blank">#royalcypher</a> <a href="https://mastodon.scot/tags/generalpostoffice" class="mention hashtag" rel="nofollow noopener" target="_blank">#generalpostoffice</a> <a href="https://mastodon.scot/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a> <a href="https://mastodon.scot/tags/glasgowcorporation" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgowcorporation</a> <a href="https://mastodon.scot/tags/glasgowhistory" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgowhistory</a>

This Is My GlasgowThe former City Telephone Exchange on College Street in Glasgow. Designed by C.J.W. Simpson ina Modern Classical style and built in 1922, it had the exchange code CIT (or 248 when all figure telephone numbers were introducted in 1966). It is now reaidential flats.<a href="https://mastodon.scot/tags/glasgow" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgow</a> <a href="https://mastodon.scot/tags/architecture" class="mention hashtag" rel="nofollow noopener" target="_blank">#architecture</a> <a href="https://mastodon.scot/tags/glasgowbuildings" class="mention hashtag" rel="nofollow noopener" target="_blank">#glasgowbuildings</a> <a href="https://mastodon.scot/tags/merchantcity" class="mention hashtag" rel="nofollow noopener" target="_blank">#merchantcity</a> <a href="https://mastodon.scot/tags/telephoneexchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneexchange</a>

lpbkdotnetIt's taken me a month, but the final part of my "take a <a href="https://mstdn.social/tags/strowger" class="mention hashtag" rel="nofollow noopener" target="_blank">#strowger</a> <a href="https://mstdn.social/tags/telephoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneExchange</a> to <a href="https://mstdn.social/tags/emfcamp" class="mention hashtag" rel="nofollow noopener" target="_blank">#emfcamp</a>"" video series is now live!<a href="https://www.youtube.com/watch?v=DikYIWUkSdU" rel="nofollow noopener" translate="no" target="_blank">https://www.youtube.com/watch?v=DikYIWUkSdU</a>Lessons learned:- I suck at logistics - When stuff is in 3 places, the thing I need is somewhere else - heavy thing is heavy, awkward, but omg fun - talking that much, next to a rave, drops my voice noticably - SD cards are garbage - Having fun means I forget to film stuff - OMG BASS! - It was 200% worth the effort!<a href="https://mstdn.social/tags/emf2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#emf2024</a> <a href="https://mstdn.social/tags/emf24" class="mention hashtag" rel="nofollow noopener" target="_blank">#emf24</a> <a href="https://mstdn.social/tags/emfcamp2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#emfcamp2024</a>

lpbkdotnetI'm still frantically pulling stuff together for taking the <a href="https://mstdn.social/tags/strowger" class="mention hashtag" rel="nofollow noopener" target="_blank">#strowger</a> <a href="https://mstdn.social/tags/TelephoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#TelephoneExchange</a> to <a href="https://mstdn.social/tags/emfcamp" class="mention hashtag" rel="nofollow noopener" target="_blank">#emfcamp</a> but rather than actually fix/pack/prepare anything - I've spent the last 3 hours slapping together a video updating the website:YouTube: <a href="https://www.youtube.com/watch?v=bOqGNUfohBc" rel="nofollow noopener" translate="no" target="_blank">https://www.youtube.com/watch?v=bOqGNUfohBc</a>Blog about the Cisco stuff I'm using: <a href="https://emf.lpbk.net/blog/posts/2024-05-12/" rel="nofollow noopener" translate="no" target="_blank">https://emf.lpbk.net/blog/posts/2024-05-12/</a>Blog about the astersisk stuff I'm doing: <a href="https://emf.lpbk.net/blog/posts/2024-05-20/" rel="nofollow noopener" translate="no" target="_blank">https://emf.lpbk.net/blog/posts/2024-05-20/</a>And of course a post about the video:<a href="https://emf.lpbk.net/blog/posts/2024-05-25/" rel="nofollow noopener" translate="no" target="_blank">https://emf.lpbk.net/blog/posts/2024-05-25/</a>RSS Feed: <a href="https://emf.lpbk.net/feed_rss_created.xml" rel="nofollow noopener" translate="no" target="_blank">https://emf.lpbk.net/feed_rss_created.xml</a><a href="https://mstdn.social/tags/phone" class="mention hashtag" rel="nofollow noopener" target="_blank">#phone</a>

lpbkdotnetA fault on my <a href="https://mstdn.social/tags/Strowger" class="mention hashtag" rel="nofollow noopener" target="_blank">#Strowger</a> <a href="https://mstdn.social/tags/telephoneExchange" class="mention hashtag" rel="nofollow noopener" target="_blank">#telephoneExchange</a> has been kicking my arse all week.One of the final selectors always sees the tie lines as busy.I’ve sunk 10+hrs into it so far, cleaning, adjusting, tracing wires, checking coils… it’s doing my head in!I’m too close to it, so I took today off to bash out a PCB for a silly thing, based on a circuit I haven’t breadboarded, using components I don’t have in stock, and footprints I can’t verify!I’m sure that’ll work first time! Right?!

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