#telecomhistory — Public Fediverse posts

ADSL's Copper Miracle: How the telecom industry turned the doomed copper telephone wire into a usable asset with an asymmetric transmission profile and discrete multitone modulation, which provided the early fast (by 2000 standards) always-on Internet connection. (31 min)

https://www.youtube.com/watch?v=phoeSk-qY8s

#Internet #Telecom #Broadband #TelecomHistory

ADSL's Copper Miracle: How the telecom industry turned the doomed copper telephone wire into a usable asset with an asymmetric transmission profile and discrete multitone modulation, which provided the early fast (by 2000 standards) always-on Internet connection. (31 min)

https://www.youtube.com/watch?v=phoeSk-qY8s

#Internet #Telecom #Broadband #TelecomHistory

ADSL's Copper Miracle: How the telecom industry turned the doomed copper telephone wire into a usable asset with an asymmetric transmission profile and discrete multitone modulation, which provided the early fast (by 2000 standards) always-on Internet connection. (31 min)

https://www.youtube.com/watch?v=phoeSk-qY8s

#Internet #Telecom #Broadband #TelecomHistory

ADSL's Copper Miracle: How the telecom industry turned the doomed copper telephone wire into a usable asset with an asymmetric transmission profile and discrete multitone modulation, which provided the early fast (by 2000 standards) always-on Internet connection. (31 min)

https://www.youtube.com/watch?v=phoeSk-qY8s

#Internet #Telecom #Broadband #TelecomHistory

History of Telecommunications T-Carrier

https://computer.rip/2025-09-20-T-carrier.html

#HackerNews #History #Telecommunications #TCarrier #TelecomHistory #TechHistory

History of Telecommunications T-Carrier

https://computer.rip/2025-09-20-T-carrier.html

#HackerNews #History #Telecommunications #TCarrier #TelecomHistory #TechHistory

History of Telecommunications T-Carrier

https://computer.rip/2025-09-20-T-carrier.html

#HackerNews #History #Telecommunications #TCarrier #TelecomHistory #TechHistory

History of Telecommunications T-Carrier

https://computer.rip/2025-09-20-T-carrier.html

#HackerNews #History #Telecommunications #TCarrier #TelecomHistory #TechHistory

Ich war wieder bei golem.de im "Besser Wissen" Podcast zu gast, diesmal zum Thema "Geschichte des [hauptsächlich GSM] Mobilfunks. Das Ergebnis könnt ihr unter https://www.golem.de/news/podcast-besser-wissen-wie-der-mobilfunk-erwachsen-wurde-2509-200081.html hören. #retronetworking #gsm #cellular #mobilfunk #technikgeschichte #telecomhistory

Ich war wieder bei golem.de im "Besser Wissen" Podcast zu gast, diesmal zum Thema "Geschichte des [hauptsächlich GSM] Mobilfunks. Das Ergebnis könnt ihr unter https://www.golem.de/news/podcast-besser-wissen-wie-der-mobilfunk-erwachsen-wurde-2509-200081.html hören. #retronetworking #gsm #cellular #mobilfunk #technikgeschichte #telecomhistory

Ich war wieder bei golem.de im "Besser Wissen" Podcast zu gast, diesmal zum Thema "Geschichte des [hauptsächlich GSM] Mobilfunks. Das Ergebnis könnt ihr unter https://www.golem.de/news/podcast-besser-wissen-wie-der-mobilfunk-erwachsen-wurde-2509-200081.html hören. #retronetworking #gsm #cellular #mobilfunk #technikgeschichte #telecomhistory

Ich war wieder bei golem.de im "Besser Wissen" Podcast zu gast, diesmal zum Thema "Geschichte des [hauptsächlich GSM] Mobilfunks. Das Ergebnis könnt ihr unter https://www.golem.de/news/podcast-besser-wissen-wie-der-mobilfunk-erwachsen-wurde-2509-200081.html hören. #retronetworking #gsm #cellular #mobilfunk #technikgeschichte #telecomhistory

So, after spending two half days in a colocation filled with several decommissioned but fully complete [including software] Siemens #EWSD digital telephone exchanges, I am happy to report that two of them will be rescued. We've dumped the hard disks and done some initial disassembly. Full disassembly and relocation will happen in upcoming months. #retronetworking #isdn #TelecomHistory

So, after spending two half days in a colocation filled with several decommissioned but fully complete [including software] Siemens #EWSD digital telephone exchanges, I am happy to report that two of them will be rescued. We've dumped the hard disks and done some initial disassembly. Full disassembly and relocation will happen in upcoming months. #retronetworking #isdn #TelecomHistory

So, after spending two half days in a colocation filled with several decommissioned but fully complete [including software] Siemens #EWSD digital telephone exchanges, I am happy to report that two of them will be rescued. We've dumped the hard disks and done some initial disassembly. Full disassembly and relocation will happen in upcoming months. #retronetworking #isdn #TelecomHistory

So, after spending two half days in a colocation filled with several decommissioned but fully complete [including software] Siemens #EWSD digital telephone exchanges, I am happy to report that two of them will be rescued. We've dumped the hard disks and done some initial disassembly. Full disassembly and relocation will happen in upcoming months. #retronetworking #isdn #TelecomHistory

on my way to Munich today. In the odd case that anyone local in my timeline feels like meeting up tonight, let me know.
For the curious: Reason for the visit is to inspect and backup a Siemens EWSD exchange and plan logistics of its upcoming move to the Dresden telecommunications museum. #munich #telecomhistory #retronetworking

on my way to Munich today. In the odd case that anyone local in my timeline feels like meeting up tonight, let me know.
For the curious: Reason for the visit is to inspect and backup a Siemens EWSD exchange and plan logistics of its upcoming move to the Dresden telecommunications museum. #munich #telecomhistory #retronetworking

on my way to Munich today. In the odd case that anyone local in my timeline feels like meeting up tonight, let me know.
For the curious: Reason for the visit is to inspect and backup a Siemens EWSD exchange and plan logistics of its upcoming move to the Dresden telecommunications museum. #munich #telecomhistory #retronetworking

on my way to Munich today. In the odd case that anyone local in my timeline feels like meeting up tonight, let me know.
For the curious: Reason for the visit is to inspect and backup a Siemens EWSD exchange and plan logistics of its upcoming move to the Dresden telecommunications museum. #munich #telecomhistory #retronetworking

At our next RetroNetCall on August 6th, 2025, we will welcome the former Lead Engineer of the SEL/Alcatel Sytem 12 digital telephone switch. If you have any interest in historical digital telephony switching, don't miss out on this opportunity:
https://discourse.osmocom.org/t/retronetcall-2025-08-06-sel-alcatel-system-12/2246 #retronetworking #isdn #telecom #telephony #telecomhistory

At our next RetroNetCall on August 6th, 2025, we will welcome the former Lead Engineer of the SEL/Alcatel Sytem 12 digital telephone switch. If you have any interest in historical digital telephony switching, don't miss out on this opportunity:
https://discourse.osmocom.org/t/retronetcall-2025-08-06-sel-alcatel-system-12/2246 #retronetworking #isdn #telecom #telephony #telecomhistory

At our next RetroNetCall on August 6th, 2025, we will welcome the former Lead Engineer of the SEL/Alcatel Sytem 12 digital telephone switch. If you have any interest in historical digital telephony switching, don't miss out on this opportunity:
https://discourse.osmocom.org/t/retronetcall-2025-08-06-sel-alcatel-system-12/2246 #retronetworking #isdn #telecom #telephony #telecomhistory

At our next RetroNetCall on August 6th, 2025, we will welcome the former Lead Engineer of the SEL/Alcatel Sytem 12 digital telephone switch. If you have any interest in historical digital telephony switching, don't miss out on this opportunity:
https://discourse.osmocom.org/t/retronetcall-2025-08-06-sel-alcatel-system-12/2246 #retronetworking #isdn #telecom #telephony #telecomhistory

If you're interested in this sort of thing (and who wouldn't be?!)

The whole notebook full of late 1950s UK telephone routing codes is online as a pdf here: https://paulseward.com/downloads/Telephony_Phreaking_Archive/TLA-FDY-TKZ.pdf

An OCR version will follow at some point in the handwavy future when I get around to it (if I don't forget).

#phreaking #preak #telephoneExchange #strowger #phoneExchange #telecom #telecoms #telecomHistory #telecomsHistory #phone #telephone

If you're interested in this sort of thing (and who wouldn't be?!)

The whole notebook full of late 1950s UK telephone routing codes is online as a pdf here: https://paulseward.com/downloads/Telephony_Phreaking_Archive/TLA-FDY-TKZ.pdf

An OCR version will follow at some point in the handwavy future when I get around to it (if I don't forget).

#phreaking #preak #telephoneExchange #strowger #phoneExchange #telecom #telecoms #telecomHistory #telecomsHistory #phone #telephone

If you're interested in this sort of thing (and who wouldn't be?!)

The whole notebook full of late 1950s UK telephone routing codes is online as a pdf here: https://paulseward.com/downloads/Telephony_Phreaking_Archive/TLA-FDY-TKZ.pdf

An OCR version will follow at some point in the handwavy future when I get around to it (if I don't forget).

#phreaking #preak #telephoneExchange #strowger #phoneExchange #telecom #telecoms #telecomHistory #telecomsHistory #phone #telephone

My new bedtime reading has arrived…

In the UK, AC13 telephone signalling used pulses of 2280Hz to represent the digits of a dialled phone number, call progress state etc.

This training document from 1983 was pretty late in the lifespan of in-band signalling like this, which had been around for 20+ years by this point.

It’ll be fun reading this from a “what would it do if I poked $thing at $time” point of view

#telephoneHistory #telecomHistory #telephone #telecoms #phreak #phreaking #phones

My new bedtime reading has arrived…

In the UK, AC13 telephone signalling used pulses of 2280Hz to represent the digits of a dialled phone number, call progress state etc.

This training document from 1983 was pretty late in the lifespan of in-band signalling like this, which had been around for 20+ years by this point.

It’ll be fun reading this from a “what would it do if I poked $thing at $time” point of view

#telephoneHistory #telecomHistory #telephone #telecoms #phreak #phreaking #phones

My new bedtime reading has arrived…

In the UK, AC13 telephone signalling used pulses of 2280Hz to represent the digits of a dialled phone number, call progress state etc.

This training document from 1983 was pretty late in the lifespan of in-band signalling like this, which had been around for 20+ years by this point.

It’ll be fun reading this from a “what would it do if I poked $thing at $time” point of view

#telephoneHistory #telecomHistory #telephone #telecoms #phreak #phreaking #phones

My new bedtime reading has arrived…

In the UK, AC13 telephone signalling used pulses of 2280Hz to represent the digits of a dialled phone number, call progress state etc.

This training document from 1983 was pretty late in the lifespan of in-band signalling like this, which had been around for 20+ years by this point.

It’ll be fun reading this from a “what would it do if I poked $thing at $time” point of view

#telephoneHistory #telecomHistory #telephone #telecoms #phreak #phreaking #phones

Oh yeah! I was posting Christmas telephone stuff this month wasn't I..

On Friday I mentioned that The Hull Corporation telephone company launched their Santa service.

Well, here are three examples of the recorded messages that kids could dial up and listen to:

https://www.youtube.com/watch?v=rI4Gt5YKAWs

https://www.youtube.com/watch?v=zvpTfQCNP7o

https://www.youtube.com/watch?v=wBEmAsACQc4

#telephone #phone #telephoneHistory #telecom #telecoms #telecomHistory #TelephoneHistory #vintagePhone #telephoneExchange #phoneExchange #Hull #kcom

Oh yeah! I was posting Christmas telephone stuff this month wasn't I..

On Friday I mentioned that The Hull Corporation telephone company launched their Santa service.

Well, here are three examples of the recorded messages that kids could dial up and listen to:

https://www.youtube.com/watch?v=rI4Gt5YKAWs

https://www.youtube.com/watch?v=zvpTfQCNP7o

https://www.youtube.com/watch?v=wBEmAsACQc4

#telephone #phone #telephoneHistory #telecom #telecoms #telecomHistory #TelephoneHistory #vintagePhone #telephoneExchange #phoneExchange #Hull #kcom

Oh yeah! I was posting Christmas telephone stuff this month wasn't I..

On Friday I mentioned that The Hull Corporation telephone company launched their Santa service.

Well, here are three examples of the recorded messages that kids could dial up and listen to:

https://www.youtube.com/watch?v=rI4Gt5YKAWs

https://www.youtube.com/watch?v=zvpTfQCNP7o

https://www.youtube.com/watch?v=wBEmAsACQc4

#telephone #phone #telephoneHistory #telecom #telecoms #telecomHistory #TelephoneHistory #vintagePhone #telephoneExchange #phoneExchange #Hull #kcom

In 1952, The Hull Corporation (who provided #telephone service in #Hull, UK) launched a recorded message service where children could dial 211211 and listen to Father Christmas tell them all about his festive preparations!

The recording included a message from Santa, carol singing, and stories written and performed by Hull Telephone Department Employees.

There's more info and a lot of photos here: https://www.kcom.com/home/discover/categories/kcom-news/take-a-look-back-at-the-spirit-of-kcoms-christmas-past/

#phone #telecom #telecomHistory #TelephoneHistory

In 1952, The Hull Corporation (who provided #telephone service in #Hull, UK) launched a recorded message service where children could dial 211211 and listen to Father Christmas tell them all about his festive preparations!

The recording included a message from Santa, carol singing, and stories written and performed by Hull Telephone Department Employees.

There's more info and a lot of photos here: https://www.kcom.com/home/discover/categories/kcom-news/take-a-look-back-at-the-spirit-of-kcoms-christmas-past/

#phone #telecom #telecomHistory #TelephoneHistory

In 1952, The Hull Corporation (who provided #telephone service in #Hull, UK) launched a recorded message service where children could dial 211211 and listen to Father Christmas tell them all about his festive preparations!

The recording included a message from Santa, carol singing, and stories written and performed by Hull Telephone Department Employees.

There's more info and a lot of photos here: https://www.kcom.com/home/discover/categories/kcom-news/take-a-look-back-at-the-spirit-of-kcoms-christmas-past/

#phone #telecom #telecomHistory #TelephoneHistory

This christmas tree made from a telephone cable was an exhibit at the “Young People's Exhibition”, Imperial Institute, London, 29 December 1936

The cable dates from before PVC insulation was widespread. Each wire was individually insulated with paper, and the whole cable was covered in a lead sheath.

Arranged in “pairs” there are 6024 wires in total.

Photo from BT Archives, finding No TCB 417/E 9977

#telephone #phone #telephoneExchange #telecom #telecomHistory #telephoneHistory

This christmas tree made from a telephone cable was an exhibit at the “Young People's Exhibition”, Imperial Institute, London, 29 December 1936

The cable dates from before PVC insulation was widespread. Each wire was individually insulated with paper, and the whole cable was covered in a lead sheath.

Arranged in “pairs” there are 6024 wires in total.

Photo from BT Archives, finding No TCB 417/E 9977

#telephone #phone #telephoneExchange #telecom #telecomHistory #telephoneHistory

This christmas tree made from a telephone cable was an exhibit at the “Young People's Exhibition”, Imperial Institute, London, 29 December 1936

The cable dates from before PVC insulation was widespread. Each wire was individually insulated with paper, and the whole cable was covered in a lead sheath.

Arranged in “pairs” there are 6024 wires in total.

Photo from BT Archives, finding No TCB 417/E 9977

#telephone #phone #telephoneExchange #telecom #telecomHistory #telephoneHistory

This christmas tree made from a telephone cable was an exhibit at the “Young People's Exhibition”, Imperial Institute, London, 29 December 1936

The cable dates from before PVC insulation was widespread. Each wire was individually insulated with paper, and the whole cable was covered in a lead sheath.

Arranged in “pairs” there are 6024 wires in total.

Photo from BT Archives, finding No TCB 417/E 9977

#telephone #phone #telephoneExchange #telecom #telecomHistory #telephoneHistory

Christmas at Haywards Heath Telephone exchange 1953

Lots of paper garlands and decorations adorning the CB10 switchboard here, but if you look closely there are paper santas/elves hanging from the cable turning sections where the positions wrap around the corners of the room.

Thanks to Stefan on the "UK Switchboards" facebook group for finding it.

#telephone #phone #telephoneExchange #PhoneExchange #TelecomsHistory #telecomHistory #switchboard #operator

Christmas at Haywards Heath Telephone exchange 1953

Lots of paper garlands and decorations adorning the CB10 switchboard here, but if you look closely there are paper santas/elves hanging from the cable turning sections where the positions wrap around the corners of the room.

Thanks to Stefan on the "UK Switchboards" facebook group for finding it.

#telephone #phone #telephoneExchange #PhoneExchange #TelecomsHistory #telecomHistory #switchboard #operator

Christmas at Haywards Heath Telephone exchange 1953

Lots of paper garlands and decorations adorning the CB10 switchboard here, but if you look closely there are paper santas/elves hanging from the cable turning sections where the positions wrap around the corners of the room.

Thanks to Stefan on the "UK Switchboards" facebook group for finding it.

#telephone #phone #telephoneExchange #PhoneExchange #TelecomsHistory #telecomHistory #switchboard #operator

Newspaper article from the "Mid Sussex Times" published in 1949.

These telephone operators at Hassocks (UK) really went all out decorating the switchboard, it's quite impressive!

Thanks to Stefan on the "UK Switchboards" facebook group for finding it.

#telephone #phone #telephoneExchange #telephoneSwitchboard #switchboard #operator #telecom #telecoms #telecomHistory

Newspaper article from the "Mid Sussex Times" published in 1949.

These telephone operators at Hassocks (UK) really went all out decorating the switchboard, it's quite impressive!

Thanks to Stefan on the "UK Switchboards" facebook group for finding it.

#telephone #phone #telephoneExchange #telephoneSwitchboard #switchboard #operator #telecom #telecoms #telecomHistory

Newspaper article from the "Mid Sussex Times" published in 1949.

These telephone operators at Hassocks (UK) really went all out decorating the switchboard, it's quite impressive!

Thanks to Stefan on the "UK Switchboards" facebook group for finding it.

#telephone #phone #telephoneExchange #telephoneSwitchboard #switchboard #operator #telecom #telecoms #telecomHistory

Newspaper article from the "Mid Sussex Times" published in 1949.

These telephone operators at Hassocks (UK) really went all out decorating the switchboard, it's quite impressive!

Thanks to Stefan on the "UK Switchboards" facebook group for finding it.

#telephone #phone #telephoneExchange #telephoneSwitchboard #switchboard #operator #telecom #telecoms #telecomHistory

Happy 31st birthday to the SMS text message!

The first message was sent on this day in 1992

https://m.youtube.com/watch?v=0EEcfKMmvrA

#phone #telephone #TelephoneHistory #Telecoms #TelecomHistory #SMS #Vodafone

Happy 31st birthday to the SMS text message!

The first message was sent on this day in 1992

https://m.youtube.com/watch?v=0EEcfKMmvrA

#phone #telephone #TelephoneHistory #Telecoms #TelecomHistory #SMS #Vodafone

Happy 31st birthday to the SMS text message!

The first message was sent on this day in 1992

https://m.youtube.com/watch?v=0EEcfKMmvrA

#phone #telephone #TelephoneHistory #Telecoms #TelecomHistory #SMS #Vodafone

Test shot for a video I’m planning at the moment. I thought it was too pretty to keep to myself… so it’s here with no context 😀

#TelephoneExchange #Strowger #PhoneExchange #relay #Telecoms #TelecomHistory

Test shot for a video I’m planning at the moment. I thought it was too pretty to keep to myself… so it’s here with no context 😀

#TelephoneExchange #Strowger #PhoneExchange #relay #Telecoms #TelecomHistory

Test shot for a video I’m planning at the moment. I thought it was too pretty to keep to myself… so it’s here with no context 😀

#TelephoneExchange #Strowger #PhoneExchange #relay #Telecoms #TelecomHistory

Test shot for a video I’m planning at the moment. I thought it was too pretty to keep to myself… so it’s here with no context 😀

#TelephoneExchange #Strowger #PhoneExchange #relay #Telecoms #TelecomHistory

What’s this mystery object stuck to my telephone?

https://youtu.be/F8R8rWIt2yI

#Phone #telephone #TelephoneHistory #telecom #telecoms #TelecomHistory #vintage #vintagePhone #vintageTelephone #vintage #mysteryObject