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The Telephone Exchange (1982) British Telecom Schools Film
 
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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: 53346 ephemeralfilm
EPABX System Installation | Telephone Exchange by Tech Guru Manjit
 
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EPABX System Installation | Telephone Exchange by Tech Guru Manjit In various Topics we are uploading videos on various topics like technical, motivational, travel guide etc. Request all our Subscriber & non Subscriber to see like and share our videos & if you have any idea or you need any other informational video us to make please drop us a mail at [email protected] Regards Tech Guru Manjit
Views: 35347 Tech Guru Manjit
The Making of Information Age: Enfield Telephone Exchange
 
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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: 34814 Science Museum
Introduction to Telephone Systems
 
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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: 654330 Eli the Computer Guy
PBX Private Branch Exchange Telephone Systems: "Invisible Diplomats" 1965 AT&T; Audrey Meadows
 
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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: 27512 Jeff Quitney
T 4.3  Telephone exchanges -- Manual, Strowger, Cross Bar and Stored Program SPC
 
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A complete video lecture course with anaimations on telecom technology
Telephone Exchange PBX (two way)
 
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(EN) The PBX system allows you to make phone calls between two telephones. Initiate a phone call occurs when a telephone receiver is high; the call is completed when both phones are closed. (RO) Aceasta centrala telefonica permite efectuarea de convorbiri telefonice intre doua posturi telefonice. Iniţierea unui apel telefonic are loc atunci când un telefon are receptorul ridicat; convorbirea se încheie atunci când ambele telefoane sunt închise.
Views: 27987 Iulian Magirescu
Automatic telephone exchange - operating
 
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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: 28366 Sounds of Changes
How to Set-up an Enterprise Asterisk-based PBX in 10 Minutes (including coffee break)
 
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http://www.xorcom.com - In this video we demonstrate how fast and easy it is to set up an enterprise level Asterisk-based PBX system. In just ten minutes a technician connects a system supporting four PRI lines and 96 FXS analog extensions, complete with analog and IP video phones! The secret to the configuration speed and simplicity is the fact that Xorcom's XPP USB2 drivers are embedded in all standard Asterisk distributions. These drivers enable the PBX to automatically detect the telephony ports. See for yourself!
Old-style telephone exchange in use
 
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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: 2457 CosmicRay2515
AT&T Archives: The Step-By-Step Switch
 
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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: 217322 AT&T Tech Channel
Telephone Switchboard
 
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Wiki: A telephone switchboard is a telecommunications system used in the public switched telephone network or in enterprises to interconnect circuits of telephones to establish telephone calls between the subscribers or users, or between other exchanges. The switchboard was an essential component of a manual telephone exchange, and was operated by one or more persons, called operators who either used electrical cords or switches to establish the connections. The electromechanical automatic telephone exchange, invented by Almon Strowger in 1888, gradually replaced manual switchboards in central telephone exchanges starting in 1919 when the Bell System adopted automatic switching, but many manual branch exchanges remained operational during the last half of the 20th century in offices, hotels, or other enterprises. Later electronic devices and computer technology gave the operator access to an abundance of features. In modern businesses, a private branch exchange (PBX) often has an attendant console for the operator, or an auto-attendant, which bypasses the operator entirely.
Views: 897 El B
UKNOF28 - The hitchhikers guide to the telephone exchange (Our LLU experiences)
 
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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: 6126 UKNOFconf
Manual telephone exchange
 
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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: 4638 Sounds of Changes
Siemens 100-line PBX Telephone Exchange
 
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Film showing a 100-line Siemens telephone exchange from around 1960 with step-by-step selectors. The final selectors is called vierechwähler an Siemens type of Strowger.
Views: 14089 Telehistoriska
1954 How to dial your phone by Bell System
 
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A look back at the time when the phone system was converting from an operator to the dial tone system.
Views: 204165 trendymagic
New Zealand Telephone Exchange
 
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Video from inside New Zealand telephone exchanges. Very interesting, lot's of historical things.
Views: 20337 MegaFranco44
Inside a Siemens (GPT) ISDX Telephone Switch
 
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These are all over the place but it's not often you'll see one, let alone four! Time to take a look inside three ISDX 300s, plus their bigger brother, the ISDX 3000. Info on the ISDX 300, a.k.a. ISDX-S: http://hipath.custhelp.com/DX_files/HiPath_DX_EP_V9new/EP%20v9.0/description/isdx_s/main_equipment.htm Info on the ISDX 3000, a.k.a. ISDX-L or ISDX-T: http://hipath.custhelp.com/DX_files/HiPath_DX_EP_V9new/EP%20v9.0/description/isdx_lt/main_equipment.htm INDEX 0:09 Introduction 1:03 Under the hood of a running ISDX 300 2:56 Decommissioned ISDX 300s - TWO of them 4:01 Inside the old one (rev. 5.x) 4:16 RISC loader 5:09 RISC CPU 5:49 4 Channel Serial I/O 6:16 Delta Channel Controller 6:33 Digital Switch Controller 6:58 300 Baud Modem 7:28 Shelf Interface 7:45 16 Channel GP I/O 8:19 Rotary Register 8:53 Universal Trunk Controller 9:39 4 Channel Interface 1 (SPM) 10:32 2M Word Memory and Control 11:03 CPU 1 11:30 CPU 2 12:37 16 Channel Codec 12:59 16 Channel Extension 13:47 Communications Equipment 14:20 8 Channel Bypass 15:20 Ops Console Interface 16:39 Inside the new one (rev. 9) 17:00 System Card 17:51 Backplanes 19:16 30 Channel Digital Line Card 19:37 GPIO and Modem 20:22 Backplanes again 21:56 Bigger brother: the ISDX 3000
Views: 12841 AintBigAintClever
The Life of a Telephone Operator in 1969 (with special introduction) - AT&T Archives
 
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See more from the AT&T Archives at http://techchannel.att.com/archives Bonus Edition Introduction by George Kupczak of the AT&T Archives and History Center. A non-linear documentary about operators - male and female, but mostly female - at their work, and describing their work and the type of customers they encounter. A fascinating inside look at the skills needed by operators in dealing with the public. Shot in the style of a Maysles- or Weisman-type documentary. There are clips from a 1913 D.W. Griffith silent film, Telephone Girl and the Lady, at the beginning and end. "The operator's job, despite tensions and aggravations, is one which consists primarily of human contact and as such, carries rich rewards." Cox went on to direct television in Hollywood and also documentaries for PBS. She now lives in Kentucky and still makes documentaries. Cox also made "All in a Day's Work" for AT&T. Directed by Nell Cox Song "Operator" by the New York Rock & Roll Ensemble was originally released as a 45rpm record. Footage courtesy of AT&T Archives and History Center, Warren, NJ
Views: 141405 AT&T Tech Channel
Multi-line Phone System Tutorial
 
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A basic overview of multi-line phone systems and how to perform simple functions such as putting callers on hold, transferring calls, conferencing calls, paging, accessing voicemail and recording greetings.
Views: 163104 learn4lifewithmrsb
Speedy Cutover Service, SXS switching cutover to ESS filmed live at Glendale CA central office, 1984
 
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A brief but surprisingly exciting 1984 video showing the preparation and live, real-time cutover from Step By Step switching system (SXS) to a new electronic switching system (ESS) in Glendale, California. Western Electric offered the Speedy Cutover Service to switching offices throughout the Bell System. Western Electric installers would visit a facility and prepare it, installing the new equipment inside the facility. They would identify and mark the existing cables that would need to be cut, then prepare employees for the cutover to the new ESS system. Previously a cutover from step-by-step (or from crossbar service) to ESS would take many frantic minutes, upwards of an hour, during which time active telephone service would be lost mid-call. With the speedy cutover service – 51 installers simultaneously cutting 927 cables as fast as possible, all on cue – the interrupted service could be brought down to well under a single minute. The climax here is unquestionably the moment of truth, the cutting of the cables, which is shown in real time. After making sure no emergency calls are underway, and with a shout of "Let's cut it!" the race is on, with three camera set-ups and a disco score capturing and preserving the moment of truth. Footage Courtesy of AT&T Archives and History Center, Warren, NJ
Views: 37683 AT&T Tech Channel
Telephone Exchange in a Box (Stage Telephone Ringer)
 
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Telephone Intercom System (Stage Telephone Ringer). Dubbed "Exchange in a Box" . Available for sale in the UK here: https://oldvintagetelephones.co.uk/Telephone-Intercom-stage-telephone-ringer Behaves intuitively, exactly like making calls to and from standard UK land line telephones, so no training or skills required and no embarrassing moments like the telephone continuing to ring when it has been picked up. Much better than any simple electronic "telephone ring generator". Please note that because this solution is specifically designed for UK land line telephones (the UK have a 3 wire, rather than a 2 wire internal wiring telephone system) this solution will not work without adaption in the US. Hence this "Exchange in a Box" is currently only available for sale in the UK.
How to setup a PBX (step by step guide)
 
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Full series: http://www.ringroost.com/how-to-setup-a-pbx.php Learn how to setup your office PBX. Taylor walks through how to use RingRoost to setup your own PBX - for really cheap.
Views: 309173 RingRoost
The Line Finder In The Step-By-Step Telephone Switching System
 
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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: 913 Hicken65
VS Compact Installation Complete
 
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For high packaging density at sites with restricted space conditions. The main applications are in the remote access, CCC and PABX areas. VS Compact is distinguished by the best transmission values and the number of structural sizes (2, 5, 8, 10, 16, 20 and 25 DA). VS Compact can also be connected doubled and with stranded wires.
Understanding the Place of IP Telephony in the Network
 
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http://www.xorcom com - This short animated presentation covers the network topology of a hybrid IP-PBX telephony solution, detailing the equipment used and explaining how Asterisk based Xorcom systems route both PSTN and VoIP calls in the enterprise environment.
The Traveling Telephone Switching Machine - AT&T Archives
 
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See more from the AT&T Archives at http://techchannel.att.com/archives The #5A Crossbar switcher, built by Western Electric at the Columbus Works, was a telephone switching machine that could handle either around 1000 lines, or up to 2000 with an extension upgrade. This made it ideal for smaller towns and communities, new large subdivisions, and larger companies. The crossbar switch itself took up 10 by 42 feet, and weighed 25 tons. The machine was pre-assembled in Ohio, and then trucked to its final installation site. This film shows the assembly and transportation, and further details about the crossbar switch's "plug and play" type of capabilities. The Columbus Works were one of the Bell System's later plants, built specifically for switching equipment manufacture, and opened in the late 1950s. It eventually manufactured not just the crossbar switch but also the 4ESS digital switch. The last major manufacturing effort AT&T ran at the plant was its Airloop, which was a wireless system announced in 1995 that was a potential replacement for crossbar-type switching systems in hard-to-reach areas. It could bring quantities of new lines to the network wirelessly, without having to build in new trunk lines to a site. At its peak, the Columbus Works employed around 12,000 workers, including 1,000 Bell Labs employees alone. In 1996 it became part of Lucent Technologies, which sold the plant in 2003. Today, the office building on the site is still occupied, but much of the manufacturing plant is empty. Writer/director: Dick Martin Music: Steve Covello Footage Courtesy of AT&T Archives and History Center, Warren, NJ
Views: 29227 AT&T Tech Channel
The Final Step by Step telephone switch in Southwestern Bell
 
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Southwestern Bell Telephone's last analog to digital switch transition cable cut. 1996
Views: 3851 Daryl Maxwell
Small Business Telephone System | How To Install
 
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http://Sales.VirtualCommLLC.com Installing your small office telephone system. You can do it yourself with the right tools and knowledge. However, you may just want to contract it out and leave it to technicians that deal with the situations every day. Either way, the C-Plus model business communications system from ESI shown here is a great value and very user friendly.
Views: 219862 VirtualCommLLC
ESS: Electronic Switching System 1965 Western Electric Telephone Technology
 
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more at http://scitech.quickfound.net 'Title refers to: Electronic Switching System. Great footage of 1960s technological breakthroughs with silicon semiconductors; early microscopic manufacturing; great early Silicon Valley solid-state manufacturing technology breakthroughs, and early nanotechnology. Great footage high tech electronics assembly; silicon crystals, transistors, circuitry, early computer-industry related technology. ...CU blinking orange-red light, camera pans down machine control panel, disembodied finger presses red switch. Great ...VS BW stock footage of women and men in 1930s working in factory manufacturing telephone parts. ...Pan down row of 1960s women looking into microscopes assembling telephone parts; CU pin of precision device used to produce tiny part; woman sticks arms into gloves extending into controlled vacuum chamber glass chamber, camera pans out to show various women working on similar tasks down row; women with drill in pieces on large board of electronics, camera pans over women with drills working on electronics switching system. ...Pan down wall of ESS electronic telephone service electronics and electronic magnetized memory banks; animated diagram shows how ESS works superimposed over wall of magnetized memory card bank. ...Zoom in on stored program control unit; memory unit Twistor module moves down conveyor line, male and female workers use microscopes and magnifying glasses to look at memory unit; CU machine producing special Twistor wire; VS long thing metal Twistor wires move along machine passing through mylar polyethylene belts... ...Great shot machine dropping tiny metal reeds into racks progressed forward on conveyor line... ...CU worker examines ferried switches under microscope. ...Spinning molten furnace producing silicon crystals; camera zooms on man removing silicon crystal from machine... ...Camera pans out from electronic box with blink yellow light room of women at work looking through hi-tech microscopes and assembly solid state components... ...Woman testing semiconductors using electronic monitor; VS women assembling circuit boards; machine rapidly shakes board of ESS coils... ...Large spool of punched tape for computer system. ...CU disembodied hand holding drill drills in wire and patches it to other part of switch board; pan down rows and rows of men working on huge banks of wiring of ESS switchboard. Great shots of early metal film production using photo emulsion process; Nikon shadowgraph is used to check resistor pattern; CU resistor pattern on shadowgraph... ...CU molten furnace producing silicon crystal. ' 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/Electronic_switching_system In telecommunications, an electronic switching system (ESS) is a telephone switch that uses digital electronics and computerized control to interconnect telephone circuits for the purpose of establishing telephone calls. The generations of telephone switches before the advent of electronic switching in the 1950s used purely electro-mechanical relay systems and analog voice paths. These early machines typically utilized the step-by-step technique. The first generation of electronic switching systems in the 1960s were not entirely digital in nature, but used reed relay-operated metallic paths or crossbar switches operated by stored program control (SPC) systems. First announced in 1955, the first customer trial installation of an all-electronic central office commenced in Morris, Illinois in November 1960 by Bell Laboratories. The first prominent large-scale electronic switching system was the Number One Electronic Switching System (1ESS) of the Bell System in the United States, introduced in Succasunna, New Jersey, in May 1965. Later electronic switching systems implemented the digital representation of the electrical audio signals on subscriber loops by digitizing the analog signals and processing the resulting data for transmission between central offices. Time-division multiplexing (TDM) technology permitted the simultaneous transmission of multiple telephone calls on a single wire connection between central offices or other electronic switches, resulting in dramatic capacity improvements of the telephone network... In the late 20th century most telephone exchanges without TDM processing were eliminated and the term electronic switching system became largely a historical distinction for the older SPC systems...
Views: 68741 Jeff Quitney
Telephone System Call Routing
 
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Info Level: Beginner Presenter: Eli the Computer Guy Date Created: August 8, 2010 Length of Class: 60 Minutes Tracks Telephone Systems Prerequisites Introduction to Telephone Systems Purpose of Class This class discusses how calls get routed within a telephone system PBX. Topics Covered Extensions Call Paths Out Calling Incoming Trunk Groups Auto Attendants Hunt Groups Call Groups Out Going Call Routing Class Notes Introduction All telephone systems use the same basic concepts to route calls Extensions PBX's relate to everything as an extension. A station is an extension. An Auto Attendant is an extension, etc. You should create a range of extensions for use for stations and subscribers, and a different range of extensions to be used for administrative purposes (Auto Attendants, Hunt Groups, etc) You can determine how many numbers make up an extension (2,3,4) Call Paths Call paths determine how an incoming call is routed. A standard call path states that a station is rung 3 times, and then the call is routed to voicemail. You can have call paths with 20+ steps. Out Calling Out calling allows the PBX to route calls from the outside to outside lines. A call from the outside can be routed to a cell phone. Out calling requires 2 trunk lines (1 for the incoming call, and one for the outgoing call) Out calling can be a HUGE security problem if not administered properly. Incoming Trunks Incoming trunk lines are programmed into Trunk Groups. Individual Trunk Groups are pointed at a specific extension for incoming calls (Usually an Auto Attendant) Multiple businesses in the same building can use the same PBX by putting their phone lines into Trunk Groups and then pointing the Trunk Group to their Auto Attendant. Auto Attendants "If you would like Sales press 1" The message for the Auto Attendant resides on the Voicemail System. You create an Extension, make it an Auto Attendant, point the message to a Voicemail box, determine what will happen when users press number keys, determine what happens if the user does nothing. Hunt Groups Are Extensions that when called ring a series of other extensions in order. If the first extension in the hunt Group is busy, the next extension in the Hunt Group is rung. Weighted or Smart Hunt Groups can route calls to extensions based on programmed parameters. Call Groups Call Groups are Extensions where numerous Extensions are rung at the same time when the Extension is dialed. Outgoing Call Routing You can create Outgoing Trunk Groups based on whether the trunk lines have local, long distance, or international calling privileges. You can create codes to allow managers to be able to access any Outgoing Trunk Group. Outgoing Call Routing is based on the number of digits dialed, and whether those digits match a pattern that allows the call to be routed to a specific Outgoing Trunk Group.
Views: 153070 Eli the Computer Guy
AT&T Archives: What is the Bell System?
 
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For more from the AT&T Archives, see http://techchannel.att.com/showpage.cfm?ATT-Archives The Bell System, which in 1976 employed nearly one million people at 27,000 locations worldwide, always benefited from explaining its scope to the public. This explanation is from a blue-collar POV, from a 'telephone man'. He divides the Bell businesses into 5 segments, and explains what each of them do. It's faux-folksy, but it does the job. Here are the company segments: 1. AT&T 2. Large local telephone companies (23 of them, like Mountain Bell, Pacific Bell, 3. Ohio Bell, etc) 4. Long Lines 5. Bell Laboratories 6. Western Electric Most people at the time knew of the Bell system as who rented you your phone, serviced the lines and provided basic and long distance telephone service. But the company extended far beyond that into military support operations, a number of much smaller subcompanies, and international telephony infrastructure projects. Footage courtesy of AT&T Archives and History Center, Warren, NJ
Views: 43723 AT&T Tech Channel
Automatic Electric 32A21 PAX telephone switching system.
 
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A 1950's vintage automatic telephone system in operation.
Views: 6608 smithno41
Gil Smiths Basement CO, PBX, Step by Step Switch Telephone Setup 4/17/2014
 
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Here is a tour of Gil Smiths setup. Had a good time seeing it all in action again. I did my best to fit it all in a video under 30 mins.
Views: 9582 chris537a
551A PBX Description and Operation
 
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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. This video identifies and explains the components of the 551A PBX cord switchboard and demonstrates how intra-PBX, outgoing and incoming calls are processed.
Views: 14759 Hicken65
How an IP PBX works and its Benefits
 
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This presentation shows how an IP PBX works and what its main benefits are
Views: 240652 3cxvoip
Operator Toll Dialing #3 "Teamwork" ~ 1949 Bell System Long Distance Telephone Operator Training
 
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Telephones & Telephony playlist: https://www.youtube.com/playlist?list=PL291BE0923F33CEB1 more at http://phones.quickfound.net/ Instructional film for telephone operators. Produced for AT&T by Audio Productions. Reupload of a previously uploaded film with improved video & sound. Public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & 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://phones.quickfound.net/telephone_operator_girls_1899.html - The New York Times, June 11, 1899, p.IMS10: - HELLO! THE TELEPHONE GIRL. - The average man might do much worse than court a telephone girl of New York. This is an opinion carefully formed after a study of the various exchanges, after several sessions of listening in by the side of on and another in active service, after chats here and there with chief operators. - For the Miss behind the telephone, whose voice is most frequently heard in the query, "What number, please?"--she is, as a rule, a slip of a girl, barely twenty oftentimes--is a very capable young person, indeed. The writer feels inclined to put her at the head of New York's army of working girls, for her brisk intelligence, her gentle ways, and the deft way she uses her small hands... - An exchange presents an interesting sight. About three sides of the great room, reaching very nearly to the ceiling, set in a structure that reminds one of an inner shell or wall, is a switchboard, with its projecting ledge. Along it, as closely as comfort will allow, are girls, and yet more girls. In a never-broken line they stretch on, over a hundred at a time, in an exchange like Cortlandt, girls tall and short, full-fledged women and round-faced lassies just out of the schoolroom, girls of dainty face and contour, and girls whom fate has dealt less kindly with, girls half-shabby and girls of pretty costume with wonderful little aprons about their waists. Nothing more or less than a concourse of youthful femininity that interests because of the marked diversity of the types shown... - If it were permitted to chat with subscribers, to gossip with each other, the telephone girls would have no time. It is nothing unusual for an expert operator to answer 125 calls an hour. She may even answer 150, or two and a half a minute. On the trunk lines, where the process is simpler and where exchanges are joined (a man on Broad wanting to speak to a man on Thirty-eighth Street, for example,) as many as 600 connections are often made in an hour. - Sometimes for five full minutes it is a mad race with the girl at the case to attend to all the demands made upon her. Perhaps, at certain hours of the day, things may calm down, and her hands, for a moment or two, lie idly in her lap. But even then she must be on the que vive for new calls, her eyes on the lookout. - Contrary to the belief of the public, a bell does not warn the telephone girl when the customer rings up "central." A little metal disk falls, displaying the subscriber's number, and that only, with no sound, with hardly a stir... - One of the disks of a drop falls, and the number is displayed. Quick as thought the girl takes up a plug (which itself fits in a hole, its long cord falling even below the floor,) and sticks it sharply in the hole whose number corresponds with the number on the disk. At the same instant she has thrown the little lever on a line with the plug's hole, and is already asking "What number, please?" - If the number that comes to her ears is of the same exchange what remains to be done is simple. The plugs spoken of go in pairs. She has only to pull out its mate, and push it in the proper hole. Then throwing another cam she presses the corresponding ringing button. That rings the bell for the party called. She listens sharply for an instant, then announcing "All right. Go ahead." - Her swiftly flying fingers are already busy with another call. One of her subscribers has called for a number on another exchange. She has the plug for his wire already in place, of course, but a more complicated connection is now to be made. - She presses a calling circuit button on the ledge. This brings to her aid another operator, a girl at the Trunk Line switchboard, of the distant exchange. "1029 Broad," she remarks quietly through her transmitter. More quickly than the word can be written a number comes back, 10. This is the number of the hole in her switchboard in to which her second plug must go to get the Broad Street connection. The plug is slipped in, the cam thrown, the ringing button pressed... - That is telephoning, from the telephone girl's point of view....
Views: 4324 Jeff Quitney
Dial-Select Telephone Intercom System w4p300 #301
 
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Schematic is now available. To get it, send me an email: intercom4u at yahoo dot com and request the Dial-Select Intercom schematic #301. Want something already built? See W4P300 #304 Intercom using a PABX. Up to 8 stations on one talk circuit. 8870 IC decodes DTMF (Touch-Tone) to binary signal, 74HC237 turns this into 8 individual signals to operate one of eight relays that reverse the polarity of the line going to the selected station which operates the signaling device. Similar to a Melco intercom except that it uses the same pair for talk and signaling.
Views: 68428 Wired Up
What is PABX, the High Quality Tutorial that you Must See about Private Automated Branch eXchange
 
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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: 51542 Joseph Richardson
My Home PBX System - Panasonic KX-TD816 / KX-TVP200
 
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Dreaming of having your own Home PBX (telephone system)? Watch this video to see an overview of my system. My system consists of a Panasonic KX-TD816 (software version 1) Hybrid PBX and a KX-TVP200 Voice Processing System and many KX-T7230 digital speaker-phones with LCD display. Links to documentation: TD816 brochure: http://www.voicesonic.com/panasonic/manuals/KX-TD816-1232_System/Panasonic-KX-TD816-KX-TD1232.pdf TVP200 brochure: http://www.phoneservice.ro/ro/catalog/voice_mail/KX-TVP200300.pdf TD816 software versions: http://www.ntci.net/Tech-Notes/version_options.htm User manuals, Installation manuals, Programming manuals also readily available on the web.
Views: 180837 VE2ZAZ
business Telephone system engineers UK
 
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Your local Independent Ex BT Telephone System Engineers offering solutions for all BT and Cable telephone internal line faults and broadband problems. All internal / external wiring repair and provision, telephone master socket / extension sockets provided. I can help you with fault finding and repair on any telephone line & broadband service provider (ISP). Intruder alarms supplied and fitted. Evening and weekend callouts. Telephone System Engineers will give you a free survey along with written estimate for any job that you contact me with. Repairs for internal telephone faults / broadband faults. Lines proved for internal or external faults. Internal & external bells supplied & fitted. New telephone line installation. Ethernet cable. Data CAT5e Network Cabling & RJ45 Computer socket installation. Underground telephone cable fitted from house to annexe / workshop. Underground cut telephone cable repair on your property. BT and Cable lines. Small business low cost telephone systems ( mini pbx) supplied / fitted. Intruder alarms supplied and fittted. Professional sevice. Quick response. weekend & evenings. VERY COMPETITIVE RATES & NO VAT ( A FRACTION OF BT / YOUR LINE PROVIDER CHARGES Where do you start the massive task of researching and purchasing a new telephone system for your business. Many people start down the road or in their local town. Maybe searching on the internet like you have. But the time and effort it takes you to find the right system and then find the best prices for it are very great. That time and energy could be used elsewhere for more results in your business or in your free time. Let us do all the hard work and running around for you. We have the process of finding, comparing, and negotiating the lowest prices down to a science. We are so good in fact that it takes us only 1 hour. We have the suppliers on speed dial. We know business systems like the back of our hand. You will save money with our service guaranteed. How do we know that, well we have saved many many customers thousands and thousands on their purchases of new business telephone systems direct from suppliers and distributors. Don’t over pay for the same telephones that we can find for you. Business telephone systems have been on the rise as more and more organizations are becoming aware of the benefits accrued with these integrated communication solutions. As opposed to having the normal phone system, business telephone system allows you to enjoy different features and functions helping you add more control and ease of use than ever before. If you are thinking of using business telephone system, there are some elements one has to consider. http://telephonesystemspro.co.uk #telephonesystemengineers #telephoneengineers Areas We Cover Across The United Kingdom Birmingham, Bath, Blackburn, Bradford, Bolton, Chester, Coventry, Crewe, Derby, Blackpool, Huddersfield, Harrogate , Hull, Halifax, Liverpool, Lancaster, Leicester, Lincoln, Leeds, Manchester, Milton Keynes, Motherwell, Newcastle upon Tyne, Nottingham, Northampton, Oldham, Peterborough, Preston, Sheffield, Stockport, Slough, Sutton, Sunderland, Southend-on-Sea, Stoke-on-Trent, Cleveland, Teesside, Warrington, Watford, Wakefield, Wigan, York,
PBX vs IP PBX | Difference In Business Phone Systems
 
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http://Sales.VirtualCommLLC.com A PBX is typically a digital system using TDM. An IP PBX is given an IP address on the customer's Local Area Network, LAN as are each of the telephones. The calls are transmitted using IP or internet protocol. That is keeping it pretty simple. It really depends on how robust your network is on whether you want to use an IP PBX. It is very easy to do moves, adds and changes with an IP system.
Views: 59538 VirtualCommLLC
AT&T Archives: Switchboards, Old and New (Bonus Edition)
 
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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: 80409 AT&T Tech Channel
Panasonic PABX TA308 simplified DIY installation
 
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Panasonic PABX TA308 simplified installation
Views: 254758 Scott Layton
What is PRIVATE BRANCH EXCHANGE? What does PRIVATE BRANCH EXCHANGE mean?
 
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What is PRIVATE BRANCH EXCHANGE? What does PRIVATE BRANCH EXCHANGE mean? PRIVATE BRANCH EXCHANGE meaning - PRIVATE BRANCH EXCHANGE definition - PRIVATE BRANCH EXCHANGE explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ 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 directly connect while not using the public switched telephone network. 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, PBX systems offered the primary advantage of cost savings for internal phone calls: handling the circuit switching locally reduced charges for telephone service via central-office lines. As PBX systems gained popularity, they began to feature services not available in the public network, such as hunt groups, call forwarding, and extension dialing. From the 1960s a simulated PBX known as Centrex provided similar features from the central telephone exchange. A PBX differs 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. The term PBX originated 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) differentiated them. Solid-state digital systems were sometimes referred to as electronic private automatic branch exchanges (EPABX). As of 2016, the term PBX is by far the most widely recognized. The abbreviation now applies 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 proved 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 involved 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. In wireline telephony, the original hosted PBX was the Centrex service provided by telcos since the 1960s; later competitive offerings evolved into the modern competitive local exchange carrier. In voice over IP, hosted solutions are easier to implement as the PBX may be located at and managed by any telephone service provider, connecting to the individual extensions via the Internet. The upstream provider no longer needs to run direct, local leased lines to the served premises....
Views: 2479 The Audiopedia
Crossbar switching system - Telephone
 
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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: 19844 VeeDubTDI

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