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Man using wifi connection to talk over internet telephony on laptop computer, San Sebastian, Basque Country, Spain
Photos from the SIP Network Operators Conference (SIPNOC) held in June 2012 in Reston, VA, USA.
For more information, please visit www.sipnoc.org/
Permission is granted to use the photo in other content provided that a link is made back to the photo here.
If you are in the photo and wish a copy of the original image file, please contact Dan York
Building Radio Kootwijk, Veluwe NL - 1922 - architect Julius Maria Luthmann.
The housing accommodations of Radio Kootwijk arose as a result of the building of a shortwave transmitter site with the same name, starting in 1918. The transmitters played an important role in the 20th century as a communication facility between the Netherlands and its colony of Dutch East Indies. In 1923 Dutch PTT (Post, Telegraph and Telephone Company) started trans-oceanic telegraphy using a longwave transmitter, a 400 KW high frequency alternator, from the German Telefunken company under the call sign PCG, in the 24 kHz and 48 kHz. By 1925 the longwave transmitter was changed by a shortwave tube based, electronic transmitter which had a much better performance due to the better propagation of short waves. With this new technology, in 1928 a radio-telephonic connection was established. At the end of World War II, the German occupying forces blew up the transmitter. Afterward some of the radio towers were rebuilt. Due to the development of new technologies like satellite communication, Radio Kootwijk lost its position as main overseas wireless connection point of the Netherlands. In 1980, the last transmission mast was blown up. In 2004 the park lost its last transmitter functions, and was transferred from the telephone company to the State Forestry Commission, which started attracting new buyers. The main building of the former transmitter park and named 'Building A', 'The Cathedral' or sometimes 'The Sphinx', was officially appointed as a monument. It is used as venue and scenery for several cultural events and productions, including the American film Mind Hunters in 2004.
Photos from the SIP Network Operators Conference (SIPNOC) held in June 2012 in Reston, VA, USA.
For more information, please visit www.sipnoc.org/
Permission is granted to use the photo in other content provided that a link is made back to the photo here.
If you are in the photo and wish a copy of the original image file, please contact Dan York
Nikola Tesla (10 July 1856 – 7 January 1943) was a Serbian-American inventor, electrical engineer, mechanical engineer, and futurist who is best known for his contributions to the design of the modern alternating current (AC) electricity supply system.
Born and raised in the Austrian Empire, Tesla studied engineering and physics in the 1870s without receiving a degree, and gained practical experience in the early 1880s working in telephony and at Continental Edison in the new electric power industry. In 1884 he emigrated to the United States, where he became a naturalized citizen. He worked for a short time at the Edison Machine Works in New York City before he struck out on his own. With the help of partners to finance and market his ideas, Tesla set up laboratories and companies in New York to develop a range of electrical and mechanical devices. His alternating current (AC) induction motor and related polyphase AC patents, licensed by Westinghouse Electric in 1888, earned him a considerable amount of money and became the cornerstone of the polyphase system which that company eventually marketed.
Attempting to develop inventions he could patent and market, Tesla conducted a range of experiments with mechanical oscillators/generators, electrical discharge tubes, and early X-ray imaging. He also built a wireless-controlled boat, one of the first ever exhibited. Tesla became well known as an inventor and demonstrated his achievements to celebrities and wealthy patrons at his lab, and was noted for his showmanship at public lectures. Throughout the 1890s, Tesla pursued his ideas for wireless lighting and worldwide wireless electric power distribution in his high-voltage, high-frequency power experiments in New York and Colorado Springs. In 1893, he made pronouncements on the possibility of wireless communication with his devices. Tesla tried to put these ideas to practical use in his unfinished Wardenclyffe Tower project, an intercontinental wireless communication and power transmitter, but ran out of funding before he could complete it.
After Wardenclyffe, Tesla experimented with a series of inventions in the 1910s and 1920s with varying degrees of success. Having spent most of his money, Tesla lived in a series of New York hotels, leaving behind unpaid bills. He died in New York City in January 1943. Tesla's work fell into relative obscurity following his death, until 1960, when the General Conference on Weights and Measures named the SI unit of magnetic flux density the tesla in his honor. There has been a resurgence in popular interest in Tesla since the 1990s.
en.wikipedia.org/wiki/Nikola_Tesla
en.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_...
1938 telephone exchange connected to contemporary telephony network (by Graham Harwood, Richard Wrights and Matsuko Yokokoji at mainfesta7 in Bolzano)
Photos from the SIP Network Operators Conference (SIPNOC) held in June 2012 in Reston, VA, USA.
For more information, please visit www.sipnoc.org/
Permission is granted to use the photo in other content provided that a link is made back to the photo here.
If you are in the photo and wish a copy of the original image file, please contact Dan York
25.7.76. Lower section passing loop. Note the overhead wire and trolley pole which were only used for telephonic communication between tram and stations.
Radio Kootwijk is a small town in the Dutch municipality of Apeldoorn, with (in 2006) ca. 120 inhabitants. It is situated in a heather- and forest-rich territory in the Veluwe region, east of the sandhills of the Kootwijkerzand and the town of Kootwijk.
The housing accommodations of Radio Kootwijk arose as a result of the building of a shortwave transmitter site with the same name, starting in 1918. The transmitters played an important role in the 20th century as a communication facility between the Netherlands and its then colony of Dutch East Indies. In 1923 Dutch PTT started trans-oceanic telegraphy using a longwave transmitter (a 400KW high frequency alternator) from the German Telefunken company under the callsign PCG, in the 24 kHz and 48 kHz. By 1925 the longwave transmitter was changed by a shortwave tube based, electronic transmitter which had a much better performance due to the better propagation of shortwaves. With this new technology, in 1928 a radio-telephonic connection was established. At the end of World War II, the German occupying forces blew up the transmitter. Afterward some of the radio towers were rebuilt.[1]
Due to the development of new technologies like satellite communication, Radio Kootwijk lost its position as main overseas wireless connection point of the Netherlands. In 1980, the last transmission mast was blown up. In 2004 the park lost its last transmitter functions, and was transferred from the KPN company (successor to PTT) to the State Forestry Commission, which started attracting new buyers. The main building of the former transmitter park, designed by Dutch architect Jules Maria Luthmann and named 'Building A' or 'The Sfynx' (journalist refer to it as a cathedral, which it is not), was officially appointed as a monument. It was used as scenery for the American film Mindhunters in 2004.
This was the first
in a series
of tubes.
Mercury Arc Rectifier Tube
Converted alternating current to 24 volt direct current which was "talk battery voltage". It emitted a blue light when working.
The gold label reads:
COOPER HEWITT RECTIFIER
STYLE No. 114847-E
50 AMP. 80-120 V
Museum of Independent Telephony,
Abilene, KS
The city was the capital of Brazil for nearly two centuries, from 1763 to 1815 during the Portuguese colonial era, 1815 to 1821 as the capital of the United Kingdom of Portugal, Brazil and Algarves, and from 1822 to 1960 as an independent nation. Rio is nicknamed the Cidade Maravilhosa or "Marvelous City."
Rio de Janeiro represents the second largest GDP in the country [5] (and 30th largest in the world [6]), estimated at about 140 billion reais (IBGE/2007), and is the headquarters of two major Brazilian companies – Petrobras and Vale, and major oil companies and telephony in Brazil, besides the largest conglomerate of media and communications companies in Latin America, the Globo Organizations. The home of many universities and institutes, it is the second largest center of research and development in Brazil, accounting for 17% of national scientific production – according to 2005 data.[7]
Rio de Janeiro is the most visited city in the southern hemisphere and is known for its natural settings, carnival celebrations, samba, Bossa Nova, balneario beaches[8] such as Copacabana, Ipanema and Leblon. Some of the most famous landmarks in addition to the beaches include the giant statue of Christ the Redeemer ('Cristo Redentor') atop Corcovado mountain, named one of the New Seven Wonders of the World; Sugarloaf mountain (Pão de Açúcar) with its cable car; the Sambódromo, a permanent grandstand-lined parade avenue which is used during Carnival; and Maracanã stadium, one of the world's largest football stadiums.
On the first day of his visit, Congress General Secretary Rahul Gandhi put Sarvan village near Fursatganj in the annals of history by launching a broadband service named as “Fibre to panchayat” technically known as GPON technology. With having state-of-the-art facility, Sarvan village became the first village in India. One optic fibre enables users to make use of this facility to enjoy services like broadband, internet, telephonic service and cable-tv as well. The distribution of optic fibre in village panchayat will be done by India unit of US-based Alphion Corporation Ltd in collaboration with ITI Rae Bareli and BSNL. On this inauguration occasion, he shared the stage with Sam Pitroda, the pioneer behind the information technology revolution.
The city was the capital of Brazil for nearly two centuries, from 1763 to 1815 during the Portuguese colonial era, 1815 to 1821 as the capital of the United Kingdom of Portugal, Brazil and Algarves, and from 1822 to 1960 as an independent nation. Rio is nicknamed the Cidade Maravilhosa or "Marvelous City."
Rio de Janeiro represents the second largest GDP in the country [5] (and 30th largest in the world [6]), estimated at about 140 billion reais (IBGE/2007), and is the headquarters of two major Brazilian companies – Petrobras and Vale, and major oil companies and telephony in Brazil, besides the largest conglomerate of media and communications companies in Latin America, the Globo Organizations. The home of many universities and institutes, it is the second largest center of research and development in Brazil, accounting for 17% of national scientific production – according to 2005 data.[7]
Rio de Janeiro is the most visited city in the southern hemisphere and is known for its natural settings, carnival celebrations, samba, Bossa Nova, balneario beaches[8] such as Copacabana, Ipanema and Leblon. Some of the most famous landmarks in addition to the beaches include the giant statue of Christ the Redeemer ('Cristo Redentor') atop Corcovado mountain, named one of the New Seven Wonders of the World; Sugarloaf mountain (Pão de Açúcar) with its cable car; the Sambódromo, a permanent grandstand-lined parade avenue which is used during Carnival; and Maracanã stadium, one of the world's largest football stadiums.
The little power I had, I exercised - this matter NEVER reared it's head again thanks to the press!!
Photos from the SIP Network Operators Conference (SIPNOC) held in June 2012 in Reston, VA, USA.
For more information, please visit www.sipnoc.org/
Permission is granted to use the photo in other content provided that a link is made back to the photo here.
If you are in the photo and wish a copy of the original image file, please contact Dan York
A 1995, 'V.34 (28800)' Zoom Telephonics FaxModem
Details :
PCMCIA V.34 28800
Card Type : Fax, Modem (asynchronous)
Maximum Data Rate : 28.8Kbps
Maximum Fax Rate : 14.4Kbps
Data Bus : PCMCIA Type II
Fax Class : Class I & II
Data Modulation Protocol : Bell 103/212A
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32bis, V.34
Rockwell V.FC
Fax Modulation Protocol : ITU-T V.17, V.21CH2, V.27ter, V.29, V.33
Error Correction/Compression : MNP10, V.42bis
NEWS!
"Zoom V.34XE FaxModem named price/performance leader by PC Professionell magazine.
Boston, MA, Feb. 12, 1996 - The Zoom FaxModem V.34XE has been chosen as the price/performance leader by PC Professionell magazine in a comparison of 14 competing V.34 external faxmodems selling in Germany. The award was announced in the February 1996 issue of PC Professionell, a leading German monthly computer trade magazine published by Ziff Verlag GmbH, a subsidiary of Ziff-Davis Publishing Company.
In its review, PC Professionell commented: "The V.34XE FaxModem, a first-time participant, skyrocketed to the front of the pack." The review concluded that the V.34XE's high connectivity and throughput performance, extended status reporting lights, and reasonable cost, plus Zoom's service and 7-year warranty "left the competition behind." "
A nice example of an 'early' modem thats had minimal use. Comes boxed with all cables / connectors, user manual and software you'll need.
Websites :
www.zoomair.com/techsupport/dial_up/external.shtml
www.zoomair.com/techsupport/dial_up/2836C.shtml
Man using wifi connection to talk over internet telephony on laptop computer, San Sebastian, Basque Country, Spain
Innovation Birmingham Campus' annual Summer Tech BBQ. L-R Stacey Ryan; Oxbridge Home Learning, Rob Green; Cloud 9 Telephony, Ria Blagburn; Growbeyond, Matt Jones; Oxbridge, Hannah Quinton; Guykat and Stuart Allbut; Cloud 9 Telephony.
Photos from the SIP Network Operators Conference (SIPNOC) held in June 2012 in Reston, VA, USA.
For more information, please visit www.sipnoc.org/
Permission is granted to use the photo in other content provided that a link is made back to the photo here.
If you are in the photo and wish a copy of the original image file, please contact Dan York
Communication gear—FM and TV transmission, mobile telephony, and microwave connections—atop Faloria Mountain overlooking Cortina d'Ampezzo in Italy's Dolomites.
Photos from the SIP Network Operators Conference (SIPNOC) held in June 2012 in Reston, VA, USA.
For more information, please visit www.sipnoc.org/
Permission is granted to use the photo in other content provided that a link is made back to the photo here.
If you are in the photo and wish a copy of the original image file, please contact Dan York
Photos from the SIP Network Operators Conference (SIPNOC) held in June 2012 in Reston, VA, USA.
For more information, please visit www.sipnoc.org/
Permission is granted to use the photo in other content provided that a link is made back to the photo here.
If you are in the photo and wish a copy of the original image file, please contact Dan York
Optus telephone shop on Bourke Street in Melbourne, Victoria, Australia
Shot on Fotokemika Efke KB100 black-and-white negative film
The Gigaset C590 and the Gigaset C595 are the family-friendly telephones from Gigaset. It features a best-in-class, large TFT color display, an easy-to-use modern user interface and brilliant sound quality with HSP. For even more convenience and simplicity in daily telephony, it features a baby alarm, programmable VIP ring tones and a talk time of up to 12 hours. They are the ideal phones to suit any family living room.
From the shooting of a TV commercial EXCLUSIVE PREVIEW HEREconceived by my company, for the launch of fixed telephony and Internet by WIND telecom in Greece, using the cast of one of the most successful local TV series ever , "Para pente"
Photos from the SIP Network Operators Conference (SIPNOC) held in June 2012 in Reston, VA, USA.
For more information, please visit www.sipnoc.org/
Permission is granted to use the photo in other content provided that a link is made back to the photo here.
If you are in the photo and wish a copy of the original image file, please contact Dan York