View allAll Photos Tagged Telephony
#AsteriskSolution is the world's leading open source telephony engine and tool kit, offering flexibility in the world of proprietary communications. #Asteriskpbxsolution attached phones to make calls to each other, and to connect to other telephone services.
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
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
Device networking solutions connect virtually any serial device to the Internet or IP network for remote monitoring, control and configuration.
equipment:
Arris telephony modem TM402P (comcast)
DLink Print server DRP 1260
Linksys VOIP adapter SPA2102 (using viop.com)
Belkin Pre N router (two)
Belkin N1 router
HP Pavalion XE749 used as a smoothwall firewall (3.0 express-polor bear)
All equipment is mounted under a corner unit desk, unless it's seen sitting on the floor.
equipment:
Arris telephony modem TM402P (comcast)
DLink Print server DRP 1260
Linksys VOIP adapter SPA2102 (using viop.com)
Belkin Pre N router (two)
Belkin N1 router
HP Pavalion XE749 used as a smoothwall firewall (3.0 express-polor bear)
APC RS1500 UPS-Back with extend Battery Pack
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
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
Looking over early historical papers of Oliver A. Wycoff, who made round the world trip with U.S. Navy in 1905 using first arc wireless telephone made by De Forest.
left to right, Joel Michaels, Elmo N. Pickerill, Harold W. Warren, Lee De Forest, Charlie B. Cooper, Oliver A. Wycoff.
Historical Photograph from The Ed. G. Raser (W2Z1) Historical Collections on The Art of Wireless Or Radio Telegraphy, Radio Telephony and the Wire (MORSE) Telegraph Systems, Trenton, N.J.
SAIT Electronics
transceiver UGF 192
sts "Rotterdam" PHEG
motorlifeboat radiostation
using
radio telegraphy, radio telephony
transmitting on the
emergency frequencies 2182 kHz 8364 kHz 500 kHz
Built-in dummy antenne for transmitter tests
manual key,
telephone handset
autokeyer for telephony alarmsignal and telegraphy alarmsignal,
MF and IF HF receiver,
power unit
SOLAS
Regulation 14
Radio apparatus and searchlights in motor lifeboats
(a)
(i) Where the total number of persons on board a passenger ship engaged on international voyages which are not short international voyages, a ship employed as a whale factory ship, a ship employed as a fish processing or canning factory ship or a ship engaged in the carriage of persons employed in the whaling, fish processing or canning industries, is more than 199 but less than 1,500,
a radiotelegraph apparatus complying with the requirements set out in this Regulation and in Regulation 13 of Chapter IV shall be fitted in at least one of the motor lifeboats required under Regulation 8 of this Chapter to be carried in that ship.
(ii) Where the total number of persons on board such a ship is 1,500 or more, such a radiotelegraph apparatus shall be fitted in every motor lifeboat required under Regulation 8 of this Chapter to be carried in that ship.
(b) The radio apparatus shall be installed in a cabin large enough to accommodate both the
equipment and the person using it.
(c) The arrangements shall be such that the efficient operation of the transmitter and receiver shall not be interfered with by the engine while it is running, whether a battery is on charge or not.
(d) The radio battery shall not be used to supply power to any engine starting motor or ignition system.
(e) The motor lifeboat engine shall be fitted with a dynamo for recharging the radio battery, and for other services.
(f) A searchlight shall be fitted in each motor lifeboat required to be carried under paragraph (a) of
Regulation 8 of this Chapter in passenger ships and under paragraph (c) of that Regulation in ships
employed as whale factory ships, fish processing or canning factory ships and ships engaged in the
carriage of persons employed in the whaling, fish processing or canning industries.
(g) The searchlight shall include a lamp of at least 80 watts, an efficient reflector and a source of
power which will give effective illumination of a light-coloured object having a width of about 18
metres (60 feet) at a distance of 180 metres (200 yards) for a total period of six hours and shall be
capable of working for at least three hours continuously.
Communication gear—FM and TV transmission, mobile telephony, and microwave connections—atop Faloria Mountain overlooking Cortina d'Ampezzo in Italy's Dolomites. On this tower, parabolic microwave antennas.
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
This model of Bell's first telephone is a duplicate of the instrument through which speech sounds were first transmitted electrically, 1875.
Museum of Independent Telephony,
Abilene, KS
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.
Sepia processing of the HDR picture "Hier Radio Kootwijk. The jetstream in the picture doesn't add up with the time this picture implies,but i thought this would make a nice picture anyway.......
A plaque on the chain link fence identifying Tower ASR 1057196, owned byh American Tower, with T-Mobile and AT&T cells on top, along with the antenna translating WQRA/90.5 from Greenfield, Indiana to 103.1 via 27-watt W276BF, serving Bloomington and Ellettsville from a site between the two, off West Arlington Road. Shot these on a very gloomy day in the rain.
Communication gear—FM and TV transmission, mobile telephony, and microwave connections—atop Faloria Mountain overlooking Cortina d'Ampezzo in Italy's Dolomites.
That the real innovation in mobile telephony lies not in the eagerly anticipated latest iPhone models but rather in mini-factories in the Chinese hi-tech hub, Shenzhen (where iPhones too are produced), is amply demonstrated by the group DISNOVATION.ORG.
In collaboration with researcher Clément Renaud and Hongyuan Qu, the artists Nicolas Maigret and Maria Roszkowska collected strikingly designed mobile phones in Shenzhen, which took such fantastic forms as strawberries or cars, or had impressive technological features. The Powerbank phone, for instance, runs up to three SIM cards in parallel and has an integrated battery that can charge other devices. Others have an in-built lighter or electric razor. This market is geared not so much to the Western middle-classes as to the rural populations of Africa or inland China. Set up as a typical sales stand, 'Shanzhai Archeology' presents the product range of these mini-companies, which fuse creativity, copy/piracy/remix-ventures and self-taught skills to develop new products in a matter of weeks. However, Shanzhai (Chinese: pirate) culture is under threat - not so much from miserable working conditions as from the Chinese government's endeavours to clean up the country's counterfeiter reputation. Yet, although often dissed for poor quality, the devices on show here, given their extraordinary qualities and style, pose a serious challenge to the West's hyper-standardised approach to technology and to the built-in obsolescence paraded under the guise of innovation.
Conception: DISNOVATION.ORG (With Clément Renaud & Yuan Qu)
By the mid-1930s the UK's Post Office publicity was widely regarded as being one of the most innovative amongst the public services. From being a rather stuffy Government department the Post Office had realised that to best sell its services, both postal and telephonic, it had to up the stakes when it came to the quantity and quality and this shows in a flood of posters and publicity material that used many of the most contemporary techniques. This was especially the case when it came to the telephone; this was still rather an expensive tool and to better sell the instrument and services to, say, the new and more affluent middle classes in their new suburban homes, much effort was put into marketing telephone services.
That said this rather fine item, a booklet issued in October 1937, and intended to exhort visitors from Canada and the US to "telephone back home" is in a niche rather of its own. Aside from the rather fine and eyecatching cover graphics by Eric C. Owen, the text is rather cleverly set against a backdrop of Canadian wilderness and US metropolis and includes details of the cost of calling back home. The booklet also gives details of such transatlantic calls from other European countries and time zones - the booklet was obviously aimed at visitors passing through the UK on their way to the Continent.
The one thing that does shine through are the costs of transatlantic calls; £5 11/- (Five Pounds and eleven shillings) for 3 minutes to the far west of the North American continent was serious money back then and show that the calls and the booklet must have been aimed at a very small market.
The back cover shows a telephone handset against the map background and also included the GPO logo designed by MacDonald Gill and using his brother, Eric's, Gill Sans typeface.
"Scatola di protezione" (surge protection box) of "San Michele" (mount Skofnik) former command post telephonic lines.
Skype icon added (is this fair use?).
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
That the real innovation in mobile telephony lies not in the eagerly anticipated latest iPhone models but rather in mini-factories in the Chinese hi-tech hub, Shenzhen (where iPhones too are produced), is amply demonstrated by the group DISNOVATION.ORG.
In collaboration with researcher Clément Renaud and Hongyuan Qu, the artists Nicolas Maigret and Maria Roszkowska collected strikingly designed mobile phones in Shenzhen, which took such fantastic forms as strawberries or cars, or had impressive technological features. The Powerbank phone, for instance, runs up to three SIM cards in parallel and has an integrated battery that can charge other devices. Others have an in-built lighter or electric razor. This market is geared not so much to the Western middle-classes as to the rural populations of Africa or inland China. Set up as a typical sales stand, 'Shanzhai Archeology' presents the product range of these mini-companies, which fuse creativity, copy/piracy/remix-ventures and self-taught skills to develop new products in a matter of weeks. However, Shanzhai (Chinese: pirate) culture is under threat - not so much from miserable working conditions as from the Chinese government's endeavours to clean up the country's counterfeiter reputation. Yet, although often dissed for poor quality, the devices on show here, given their extraordinary qualities and style, pose a serious challenge to the West's hyper-standardised approach to technology and to the built-in obsolescence paraded under the guise of innovation.
Conception: DISNOVATION.ORG (With Clément Renaud & Yuan Qu)
The tower is ASR 1275846, standing on a hill in French Lick, Indiana, with the recursive address "French Lick Tower." It was built in 2010, and is owned by Smithville Telephone, Inc., a family owned company of long standing that also specializes in fiber optic service to homes. I don't see anything that yells "telephony" at me here. All the cellular providers are on three towers on higher sites across town. But on it is W269BU, a translator on 101.9 FM of WFIU/103.7, of Bloomington.
This appears to be the over-the-air antenna for picking up WFIU on 103.7 for the transmitting antenna below to translate out on 101.9.
Details about both the tower and the station:
Tower:
Registration Number: 1275846
File Number: A1204661
FAA Issue Date: 06/24/2009
Status: Constructed
Date Constructed: 11/03/2010
Structure Coordinates: 38-32-59.3 N 86-37-36.5 W (NAD 83)
Structure Address: French Lick Tower
Structure City: French Lick, IN
Structure County: Orange County
Site Elevation: 220.6 meters (724 ft)
Height of Structure: 79.5 meters (261 feet)
Overall Height Above Ground: 79.5 meters (261 feet)
Overall Height Above Mean Sea Level: 300.1 meters (985 feet)
Station:
Effective Radiated Power: 0.038 kW
Transmitter Output Power: 0.116 kW
Antenna Center HAAT: 65.1 m Horiz.; 0 m Vert.
Antenna Center AMSL: 252 m (827 ft.)
Antenna Center HAG: 31 m (102 ft.)
Site Elevation: 221 m. (725 ft.)
Height Overall*: 80 m (262 ft.)