A step-by-step automatic telephone exchange brought into operation in 1921 at a post office in Ljubljana, which was the first automatic exchange in the then Kingdom of Serbs, Croats and Slovenes (later Yugoslavia). Originally it connected 500 users, but the facilities were later upgraded. Before being donated to the Museum of Post & Telecommunications in 1981, it had a total of 2000 subscribers. Two automatic telephones are connected to the exchange; the first is a Siemens & Halske and the other Telefongyar R. T. Budapest.
Views: 29535 Sounds of Changes
See more from the AT&T Archives at http://techchannel.att.com/archives The purpose of this film was to show employees, back in 1951, how calls were automatically switched through an SxS office. This film gives a general appreciation of the importance, complexity, and cost of switching equipment in an average 1950s telephone office. The path of a call is illustrated as it runs through a demonstration unit. "Careful adherance to Bell System maintenance practices" is stressed. While this is only part I, Part II eventually showed the equipment in various types of use, and Part II showed the internal circuit operations. Switchers today are digital and look drastically different. These systems at this time were still not even transistorized, so this film shows a system that's not only years back in time, but many generations back in terms of technology. Producer: Audio Productions, Inc. Footage courtesy of AT&T Archives and History Center, Warren, NJ
Views: 225769 AT&T Tech Channel
NOTE: ALL MY REPLIES TO COMMENTS PRIOR TO AUG 24, 2017 HAVE BEEN LOST DUE TO A PROBLEM WITH MY GOOGLE ACCOUNT. I WILL CONTINUE TO ANSWER NEW QUESTIONS GOING FORWARD. Watch a rotary dial telephone call progress through the SXS switching system to telephone number Beechwood 4-5789. You can see a complete SXS Central Office in operation at this link https://www.youtube.com/watch?v=_VO7MWFI9SU
Views: 7458 Hicken65
A Pacesetter production for British Telecom. BFI Database: The invention of the automatic telephone exchange system by Strowger and the history of its development. Looks in detail at various automatic systems and explains how they work, these include: the Strowger switching system; the cross bar selector; the reed relay electronic exchange; and the microchip technology of the System X exchange. Intended for schoolchildren aged 10-16 years. This is a new transfer of an severely faded 16mm print. Some colour correction has been applied to try and reduce the red cast. The copyright in this film belongs to BT Group.
Views: 56801 ephemeralfilm
A complete video lecture course with anaimations on telecom technology
Views: 9330 Ramanikumar animations -Telecom and Wireless
This video describes in detail the operation of the electromechanical line finder switch in the Step-By-Step telephone switching system. You can see a complete SXS Central Office in operation at this link https://www.youtube.com/watch?v=_VO7MWFI9SU
Views: 1334 Hicken65
Part 1 of the Strowger Telephone exchange Demo unit
Views: 329 Abdy Antique Telephones
Interior of New York exchange, showing girls at work, replying to inquiries, etc. Switchboards for international radio phone, etc. In sound. You can license this story through AP Archive: http://www.aparchive.com/metadata/youtube/6aa1d335054e4b7ebddbbf22cf765508 Find out more about AP Archive: http://www.aparchive.com/HowWeWork
Views: 1199 British Movietone
The PABX allows and controls the sharing of different phone lines between different communication devices. Open this page: http://www.ozekiphone.hu/what-is-pabx-private-automated-branch-exchange-311.html PABX (Private Automated Branch eXchange) controls the switching of different communication channels among different communication devices. The channel between the devices are built up by Session Initiation Protocol (SIP). PABX is used by call centers in particular. This system provides single access to multiple lines.
Views: 53165 Joseph Richardson
more at http://phones.quickfound.net AT&T high-end business marketing film for PBX (Private Branch eXchange) switchboards. The film stars Audrey Meadows & Ruta Lee, the cinematographer was Hal Mohr (A Midsummer Night's Dream, The Phantom of the Opera, Rancho Notorious...). Two different kinds are shown: Audrey Meadows' PBX is a more traditional cord switchboard. The operator answers and connects calls by plugging cords into jacks. Ruta Lee's PBX is the latest (in 1965) cordless switchboard. Calls are processed by pressing a sequence of buttons, instead of using cords and jacks. Public domain film from the Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original). http://creativecommons.org/licenses/by-sa/3.0/ http://en.wikipedia.org/wiki/Business_telephone_system#Private_branch_exchange A private branch exchange (PBX) is a telephone exchange or switching system that serves a private organization and performs concentration of central office lines or trunks and provides intercommunication between a large number of telephone stations in the organization. The central office lines provide connections to the public switched telephone network and the concentration aspect of a PBX permits the shared use of these lines between all stations in the organization. The intercommunication aspect allows two or more stations to establish telephone or conferencing calls between them without using the central office equipment. Each PBX-connected station, such as a telephone set, a fax machine, or a computer modem, is often referred to as an extension and has a designated extension telephone number that may or may not be mapped automatically to the numbering plan of the central office and the telephone number block allocated to the PBX. Initially, the primary advantage of a PBX was the cost savings for internal phone calls: handling the circuit switching locally reduced charges for telephone service via the central office lines. As PBX systems gained popularity, they were equipped with services that were not available in the public network, such as hunt groups, call forwarding, and extension dialing. In the 1960s a simulated PBX known as Centrex provided similar features from the central telephone exchange. A PBX is differentiated from a key telephone system (KTS) in that users of a key system manually select their own outgoing lines on special telephone sets that control buttons for this purpose, while PBXs select the outgoing line automatically or, formerly, by an operator. The telephone sets connected to a PBX do not normally have special keys for central office line control, but it is not uncommon for key systems to be connected to a PBX to extend its services. A PBX, in contrast to a key system, employs an organizational numbering plan for its stations. In addition, a dial plan determines whether additional digit sequences must be prefixed when dialing to obtain access to a central office trunk. Modern number analysis systems permit users to dial internal and external telephone numbers without special codes to distinguish the intended destination. History The term PBX was first applied when switchboard operators managed company switchboards manually using cord circuits. As automated electromechanical switches and later electronic switching systems gradually replaced the manual systems, the terms private automatic branch exchange (PABX) and private manual branch exchange (PMBX) were used to differentiate them. Solid state digital systems were sometimes referred to as electronic private automatic branch exchanges (EPABX). Today, the term PBX is by far the most widely recognized. The acronym is now applied to all types of complex, in-house telephony switching systems. Two significant developments during the 1990s led to new types of PBX systems. One was the massive growth of data networks and increased public understanding of packet switching. Companies needed packet switched networks for data, so using them for telephone calls was tempting, and the availability of the Internet as a global delivery system made packet switched communications even more attractive. These factors led to the development of the voice over IP PBX, or IP-PBX. The other trend was the idea of focusing on core competence. PBX services had always been hard to arrange for smaller companies, and many companies realized that handling their own telephony was not their core competence. These considerations gave rise to the concept of the hosted PBX...
Views: 29043 Jeff Quitney
Manual desktop telephone exchange with wooden casing, a dial and a Bakelite handset. Manual exchanges were in use from the second half of the 19th century. In Slovenia, the last manual telephone exchange with eight connections ceased operating in September 1987. Two magneto telephones are connected to the exchange. The exchange is part of the collection of Museum of Post & Telecommunications.
Views: 5018 Sounds of Changes
At: DebConf 5 Misc https://debconf5.debconf.org/
Views: 55 DebConf Videos
This film explores the story of the Enfield telephone exchange and the role of female operators in the development of telephone networks. The Enfield exchange was one of the last to be converted from manual to automatic switching. After closure, the Science Museum preserved a section of the switchboard which is now on display in the new Information Age gallery along with stories of the women who worked on the exchange. Information Age tells the story of how our lives have been transformed by information and communication technologies over the last 200 years. Visit http://www.sciencemuseum.org.uk/informationage or follow the conversation online via #smInfoAge to find out more. #ScienceMuseum #History #InformationAge
Views: 38102 Science Museum
AUSO Siemens old telephone exchange. ► More videos of old things: - Olivetti M24: https://youtu.be/y0oL6r3M0L4 - Portable TV: https://youtu.be/_JQJrzY4j00 - ICE 680G: https://youtu.be/cTdD2UE13Kc - Proliant DL380 Server: https://youtu.be/ZceRtSw5tIM ► My Electronics Creations: https://goo.gl/k1PN4A WARNING: This video is only for demonstration. I don't take any responsibility for damage to things, people and animals. ► My equipment: Panasonic HC-V180 (Main Camera) iPhone 6 (Secondary Camera) #ElectronicProjects #Electronic #Stefano91ste
Views: 455 Electronics Projects - Stefano91ste
At: DebConf 5 Misc https://debconf5.debconf.org/
Views: 132 DebConf Videos
This is an old analog Strowger Switch: https://en.wikipedia.org/wiki/Strowger_switch And kids making pizza orders! This is at the Museum of Independent Telephony in Abilene, KS Full story and comments at http://changelog.complete.org/archives/9811-the-joy-of-exploring-old-phone-systems-pizza-and-discovery
Views: 2871 CosmicRay2515
Released October 17, 2018 Second single from "Maschinelles Lernen"; available in vinyl and digitally on January 5th 2019 via El Cochinero Records Recorded, mixed and produced by Cesar Saldivar at "El Cochinero Recording"; Mexico City, MX. Mastered by Sergio Patiño at "Noise Mastering Studio"; Queretaro, MX. Artwork by Cesar Saldivar © El Cochinero, 2018
Views: 199 Telephone Exchange
From the Museum of Communications, this is a quick video of me standing in one of the aisles of the crossbar frames. I don't know which model this was, but I'll update the video when I figure it out. The system is constantly dialing via an auto-dialer one aisle over.
Views: 20778 VeeDubTDI
Speaker: Charlie Boisseau (Fluency) https://indico.uknof.org.uk/conferenceOtherViews.py?view=standard&confId=30 The experiences we've had doing LLU/Exchange Unbundling with Openreach. A story from start to finish, including commercial, regulatory and logistical challenges and advantages.
Views: 6251 UKNOFconf
Follow Eli on the Vlog Channel: https://www.youtube.com/user/EliComputerGuyLive Info Level: Beginner Presenter: Eli the Computer Guy Date Created: August 2, 2010 Length of Class: 54 Minutes Tracks Telephone Systems Prerequisites None Purpose of Class This class introduces students to the basic components of telephone systems. Topics Covered Public Switched Telephone Network Central Offices Trunk Lines PBX and Voicemail Systems PBX Stations Voicemail Subcribers Class Notes Introduction Telephone systems are not complicated if you understand how they work. A Word on VoIP VoIP is not a telephone system PSTN PSTN -- Public Switched Telephone Network is like the Internet, but for telephone communication NADP -- North American Dialing Plan -- Is the system for routing telephone calls. Central Office -- All telephone lines connect to a local central office Trunk Lines Every Trunk Line has a telephone number A Trunk Line allows for 1 incoming or outgoing call. You can have far more telephones in a building then you have trunk lines. Incoming Trunk lines are setup in Hunt Groups. If the main phone number is busy the call is automatically forwarded to the next number in the Hunt Group Incoming Hunt Groups are setup by your local telephone company. Outgoing calls can be routed to use selected trunk lines. This in configured in your PBX. PBX and Voicemail The PBX routes telephone calls The Voicemail system provides all audio messaging. (Voicemail boxes, Message Boards, and Auto Attendant Messages) Stations All devices that connect to the PBX are "Stations". This includes telephones, call boxes, intercom systems, etc. There are 2 types of stations; Analogue and Digital. Analogue and Digital stations have to be connected to appropriate ports on the PBX. An analogue phone cannot connect to a digital port and vice versa. Almost all fax machines and phones you buy at retail stores are analogue. If your new fax machine does not work it may be because it's plugged into a digital line. Subscribers Subscribers are users of the Voicemail system. Subscribers do not have to have stations Voicemail ports are the number of connections to the Voicemail system at any one time. This includes not just people retrieving their voicemail, but also incoming calls that connect to Auto Attendant messages. Final Thoughts Be careful before you touch! Most older telephone and voicemail systems were administered using a phone keypad, NOT and computer interface. If you mess something up it can be very difficult to rebuild a deleted Auto Attendant or such. Resources North American Numbering Plan PSTN -- Wikipedia
Views: 663192 Eli the Computer Guy
My mini project for history class with my friend
Views: 490 panda vids
Poulton-le-Fylde Telephone Exchange during the 1992 Digital Changeover from rotary dial.
Views: 9106 bpool.tv
Telephone exchange. Going for an interview as a telephone operator. Hand writing test. Training in class and use of the old style exchanges. Dummy exchange for training. London Telephone Exchange. Emergency numbers. Continental Exchange and you have to speak French.
Views: 23977 HuntleyFilmArchives
This is Raw footage of my Trip to the Local Telephone Exchange Location in Miami, Florida. Switches, dslams, Local Exchanges, ISDN, LD, InterLATA, ect. ATT Local Switch in the 305 / 786 Area Code
Views: 17036 Carlos Pineiro
(2 Jun 1974) President Habib Bourguiba of Tunisia opens the country's first automatic telephone exchange You can license this story through AP Archive: http://www.aparchive.com/metadata/youtube/00c36fe1f54112e48066ea3543337312 Find out more about AP Archive: http://www.aparchive.com/HowWeWork
Views: 73 AP Archive
Should be Strowger Switch instead of Stowger. Telephone exchange step switch modified as a retirement gift. I thought this was interesting and made a video of it. I remember visiting a telephone exchange when I was a kid. A building full of these switches was quite noisy. 70+ year old technology. Shooting video through the Plexiglass case was difficult.
Views: 4595 Ronald Walters
1st single off of Telephone Exchange's debut LP, "Maschinelles Lernen" Available to pre-order on limited edition beige vinyl w/ chipboard jacket via bandcamp https://ongakubakarecords.bandcamp.com/album/maschinelles-lernen
Views: 351 Ongakubaka Records
Maschinelles Lernen (2019) https://ongakubakarecords.bandcamp.com/album/maschinelles-lernen https://www.facebook.com/telephoneexchangemusic/ https://twitter.com/telephonExchnge https://instagram.com/telephonexchnge/ https://www.youtube.com/channel/UCOQrt4ZdlPxhVl-K6E2qkgA? Telephone Exchange is a music project by Cesar Saldivar that explores the daily intricacies of modern life through unembellished hazy soundscapes Telephone Exchange Mexico City, Mexico =================== Ongakubaka Records https://ongakubakarecords.bandcamp.com/music http://www.ongakubaka.com/ https://www.facebook.com/OngakubakaRecords https://instagram.com/ongakubakarecords/ https://twitter.com/OngakubakaRcrds ================== 1. Index Out of Bounds 00:00 2. Poppies Biscuits 04:39 3. Plevna 08:03 4. The Bureaucratics of Parametricism 13:33 5. User Manual 16:42 6. Machine Learning 21:47 *** releases January 5, 2019 Recorded, mixed and produced by Cesar Saldivar at "El Cochinero Recording"; Mexico City, MX. Mastered by Sergio Patiño at "Noise Mastering Studio"; Queretaro, MX. Artwork by Cesar Saldivar
Views: 918 666MrDoom
See more from the AT&T Archives at http://techchannel.att.com/archives Introduction by George Kupczak of the AT&T Archives and History Center Switchboards, Old and New traces the development of voice switching methods from the first system that utilized the wires of a burglar alarm unit in Boston in 1877, to the "latest type" of switching in central offices, circa 1932. Along the way, we get the evolution of the Operator as well. Originally teenage boys were hired as operators, but it was quickly noted that they were not ideal due to being rambunctious and prone to pranks. Emma and her sister Stella Nutt were the first female operators, hired in 1878. They started a tradition that continued to the 1970s, when equal hiring practices made it possible for men to become operators as well, again. Switchboards started to be replaced by TSPS (Traffic Service Position System), starting in 1969. Voicemail trees, also called Interactive Voice Response, also replaced operators. In 2000, there were fewer than 300,000 operators working in the U.S., most at the switchboards of large companies or hotels. That number continues to drop by the thousands every year. Produced by Loucks and Norling Studios Footage courtesy of AT&T Archives and History Center, Warren, NJ
Views: 88566 AT&T Tech Channel