LIRS may refer to Local Internet registry Local Internet registries LIRS standard Last modified Information Relaying Specification a Web feed formats disambig ... more details
Merge to TADIL A discuss Talk TADIL A Link 11 MIL STD 6011 discuss Talk MIL STD 6011 Merger proposal date December 2010 In telecommunication , a tactical data information link A TADIL A is a netted data link link in which one unit acts as a net control station and interrogates each unit by roll call. Once interrogated, that unit transmits its data to the net. This means that each unit receives all the information transmitted. This is a direct transfer of data and no relaying is involved. FS1037C MS188 Telecomm stub Category Telecommunications ... more details
The name Electrophone was used for a telephone distributed audio system which operated in the United Kingdom between 1895 and 1926, relaying live theatre and music hall shows and, on Sundays, live sermons from churches via special headsets connected to conventional phone lines. This was similar to the France French Theatrophone system and the Hungary Hungarian Telefon H rmond which carried news, entertainment and fiction readings. These hard wired systems can be seen as important forerunners of radio broadcasting, and are the reason radio in the U.K. was for many years called the wireless . See also Telephone newspaper External links http earlyradiohistory.us sec003.htm News and Entertainment by Telephone http news.bbc.co.uk 2 hi technology 8668311.stm BBC The 19th Century iPhone telecommunications bcast stub Category Information by telephone Category telephone newspapers ... more details
Wikify date November 2010 Image MISOC.jpg right thumb 200px MISOC logo The Moroccan chapter of the Internet Society or MISOC is a non governmental association and is part of the global Internet Society. It aims at being the local arm of ISOC, as well as relaying local concerns to the relevant Internet organizations. Every member of the chapter is also a member of the global Internet Society. MISOC was created in November 1994. Goals and activities ISOC Morocco shares the global goals of the Internet Society, as expressed in the http www.isoc.org isoc SOP.pdf ISOC strategic Operating Plan . In addition, it focuses on local and not so local, activities to make the Internet processes better known to the community. External links http www.misoc.ma MISOC DEFAULTSORT Isoc Morocco Category Internet governance Category Communications in Morocco Morocco stub ... more details
Fernsehturm is the German language German word for television tower . A number of German cities have television towers and each will usually be referred to simply as Fernsehturm by the inhabitants of the city. The correct term for the tower as a Building although would be Fernmeldeturm which depicts the original purpose of most of these towers relaying any type of communication, not only television. It may refer to any of the following structures Fernsehturm Berlin Fernsehturm Schwerin Zippendorf Fernsehturm Dresden Wachwitz Fernsehturm Stuttgart Fernmeldeturm Mannheim Fernsehturm Stuttgart Florianturm Dortmund Fernmeldeturm M nster Fernsehturm Heidelberg disambig cs Fernsehturm es Fernsehturm fr Fernsehturm it Fernsehturm sk Fernsehturm tr Fernsehturm ... more details
Orphan date February 2009 Image Tie crane.jpg thumb 250px A tie crane and trolley laden with wooden sleepers A tie crane is a piece of rail transport maintenance of way equipment used to move and handle the railroad tie s sleepers used in rail tracks using track relaying. The machines are used as an alternative to the manual labour once used. Mounted on a lightweight chassis with rail wheels, the operators cab and lifting arm pivot on a base, enabling 360 degree rotation. The end of the lifting arm has a gripper for picking up sleepers, and a movable wrist to allow the tie to be positioned. Often a small trolley is connected to the tie crane by a drawbar, for either storage of new sleepers to be placed into the track, or for taking away old sleepers that have been removed. rail stub Category Maintenance of way equipment ... more details
Orphan date February 2009 Unreferenced date December 2008 Network Neram is a program among the AIR FM Rainbow group and has been broadcast all over the Tamil Nadu state. Chennai Rainbow FM 101.4 MHz broadcasts this program and Trichy Rainbow FM, Coimbatore Rainbow FM, Madurai AIR, Uthagamandalam Ooty AIR, Thirunelveli Nellai AIR are relaying this program between 5 00 pm and 6 00 pm. Anwar, Nelson, Sabari, Selva, Saravanan, Murali, Karthik, Ruban, Saranya, Jayashri, Vasagamani, Gayathri and Thirunavukkarasu Kumaran are the RJs hosting network Neram program. Though Tamil Nadu got so many private fm channels, network Neram is the top performing program. This network Neram got started on 15th of July 2006. India stub Category Indian radio programs ... more details
File Approaching Steam Train geograph.org.uk 351310.jpg thumb RH Smyth dropping ballast near Jordanstown railway station Jordanstown in August 2005 Londonderry Port and Harbour Commissioners LPHC No. 3 R H Smyth is a preserved Ireland Irish steam locomotive . Built by Avonside Engine Company Avonside Engineering Company of Bristol , England works No. 2021 in 1928. A fairly typical 0 6 0 Saddle tank locomotive saddle tank built to the 5 3 Irish broad gauge, she led a rather uneventful life shunting the dual gauge 5 3 and 3 docks in Derry on the west bank of the River Foyle in Northern Ireland . She was equipped with a single off centre buffer and coupling at each end for shunting 3 gauge stock, in addition to conventional buffers and drawhooks for 5 3 gauge. After withdrawal, she was bought privately in 1968 before being sold for 1 to the Railway Preservation Society of Ireland at Whitehead, County Antrim Whitehead in 1972. ref cite web title Five Foot Three No.14 work RPSI url http www.steamtrainsireland.com 5ft3 5ft3 14.html smyth accessdate 2011 02 15 ref The engine then acquired the nickname Harvey in honour of showjumper Harvey Smith equestrian Harvey Smith . In 2000, 30 years after the end of mainline steam in Northern Ireland , No. 3 achieved something of a celebrity status when she was hired by Henry Boot Ltd to help engineering work on the relaying of the Belfast Londonderry railway line Bleach Green Junction Antrim railway line . This was followed in 2005 by another contract assisting the relaying of the Belfast Larne railway line Carrickfergus Whitehead railway line . During 2006, the locomotive was placed on loan to the Downpatrick & County Down Railway . ref cite web title Special Visitor Steams in to Downpatrick work DCDR url http www.downrail.co.uk pdffiles harvey.pdf accessdate 2011 02 15 ref References Reflist External links http www.steamtrainsireland.com locomotives loco3.htm Category 0 6 0ST locomotives Category Individual locomotives Category Ste ... more details
In information theory , a relay Channel communications channel is a probability model of the communication between a Communication source sender and a receiver aided by one or more intermediate relay nodes. It is a combination of the broadcast channel from sender to relays and receiver and multiple access channel from sender and relays to receiver . General discrete time memoryless relay channel A discrete memoryless single relay channel can be modelled as four finite sets, math X 1, X 2, Y 1, math and math Y math , and a conditional probability distribution math p y,y 1 x 1,x 2 math on these sets. The probability distribution of the choice of symbols selected by the encoder and the relay encoder is represented by math p x 1,x 2 math . pre nowiki o o Relay Encoder o o A y1 x2 V o o x1 o o y o o Encoder p y,y1 x1,x2 Decoder o o o o o o nowiki pre There exist three main relaying schemes Decode and Forward, Compress and Forward and Amplify and Forward. The first two schemes were first proposed in the pioneer article by Cover and El Gamal. Decode and Forward DF In this relaying scheme, the relay decodes the source message in one block and transmits the re encoded message in the following block. The achievable rate of DF is known as math max p x 1,x 2 min left I left x 1 y 1 x 2 right , I left x 1, x 2 y right right math . Compress and Forward CF In this relaying scheme, the relay quantizes the received signal in one block and transmits the encoded version of the quantized received signal in the following block. The achievable rate of CF is known as math max p x 1 p hat y 1 y 1 p x 2 I left x 1 hat y 1 , y x 2 right math subject to math I x 2 y geq I y 1 hat y 1 y math . Amplify and Forward AF In this relaying scheme, the relay sends an amplified version of the received signal in the last time slot. Comparing with DF and CF, AF requires much less delay as the relay node operates time slot by time slot. Also, AF requires much less computing power as no decoding or quantiz ... more details
unreferenced date April 2008 Infobox NI station name Crawfordsburn image locale Crawfordsburn borough North Down Borough Council years 1997 events Closed platforms 0 usage0405 Crawfordsburn railway station served Crawfordsburn Hospital in County Down , Northern Ireland , situated between Carnalea railway station Carnalea and Helen s Bay railway station Helen s Bay . The halt closed in 1997 because of low passenger numbers. The platforms were removed in 2001 during the relaying of the Belfast Bangor line. NIRRail start rail line previous Helen s Bay railway station Helen s Bay next Carnalea railway station Carnalea route Northern Ireland Railways br small Belfast Bangor railway line Belfast Bangor small col 0072BC s end UKrailwaystations coord 54.6637 5.7216 type railwaystation display title Category Disused railway stations in County Down Category Railway stations closed in 1997 NorthernIreland railstation stub ... more details
ID MM7 is a protocol developed and promoted by the Liberty Alliance , driven by major mobile operators such as Vodafone and Telef nica M viles , to standardize identity based web services interfaces to mobile messaging. The ID MM7 specification adds significant value to existing web services. MM7 MMS MM7 has long been used by operators for relaying Multimedia Messaging Service MMS and SMS traffic. ID MM enables an entirely new business model wherein the content providers know their subscribers only pseudonymously providing the capability to thwart spam electronic spam , identity theft and fraud . Known implementations of the protocol include http www.symlabs.com Symlabs Federated Identity Platform http www.symlabs.com Products FIAM DOCS symlabs fiam prod id messaging jn.html ID Messaging Category Computer access control protocols Category Mobile telecommunications standards Category Mobile Web telecomm stub ... more details
Image Aqualys.jpg thumb 400px A Corail train Corail train in Aqualys livery, at the Gare d Austerlitz , August 2006. Aqualys is the name given to the Intercit s route between Paris and Tours via Orl ans on the classic lines. History Even though this route had already existed for a long time, it was attributed this name after all its trains were renovated around the year 2000. This name is therefore the name of the train and not of the Railway which happens to be the historic line of the Chemin de Fer de Paris Orl ans PO relaying Paris to Orl ans and Bordeaux . The Aqualys therefore shares this line with the TER Centre trains Tours Orl ans and Orl ans tampes Paris, freight trains, the trains Paris Royan , Paris Madrid the Talgo , Orl ans Nantes the Interloire and some rare Paris Bordeaux using the classic line that can be found during the holidays. Category Named passenger rail services in France France rail transport stub fr Aqualys ... more details
cooperative diversity can be also achieved by multi hop relay networking systems. Relaying Strategies Cooperative diversity can be performed based on a few different relaying strategies such as amplify ... nodes. It is assumed that the channel is in a half duplex, orthogonal and amplify and forward relaying mode. Differently to the conventional direct transmission system, we exploit a time division relaying .... Thus, in the following we consider non cooperative scheme which exploits signal relaying to improve ... of freedom is not increased by signal relaying. There is no increase in the diversity order ..., time and power resources for the relaying phase. Wireless resources are wasted since the relay ... Using the max flow min cut theorem yields the upper bound of full duplex relaying math C max f X ... math for cooperative relaying capability. Using cooperative relaying capability at the relay node improves ... 1 c 2 31 P 1 c 2 32 P 2 2 sqrt beta c 2 31 c 2 32 P 1 P 2 right math Time Division Relaying The capacity ..., June 2010. ref A wireless sensor network can use cooperative relaying to reduce the energy consumption ... S bastien Simoens, Josep Vidal, Olga Mu oz, COMPRESS AND FORWARD COOPERATIVE RELAYING IN MIMO OFDM ... more details
Unreferenced date January 2008 Telephone s main lines in use about 2,000 1999 est. Telephones mobile cellular 0 1999 Telephone system sparse and limited system br domestic NA br international tied into Morocco s system by microwave radio relay, tropospheric scatter, and satellite satellite earth stations 2 Intelsat Atlantic Ocean linked to Rabat , Morocco Radio broadcasting broadcast stations Morocco s state broadcaster RTM operates a radio service from Laayoune the broadcaster s TV service is also relayed in the territory. RTM website lists AM 711 kHz as Dakhla, not Laayoune. Both located in former Spanish Sahara. Regional service of Radio Laayoune 2030 0200. On the other side of the political divide, a Polisario backed mediumwave AM and shortwave radio station is on the air. AM 2, FM 0, shortwave 1 7460 kHz relaying AM 1550 kHz. e.g. in Spanish 2300 0000 UTC Unofficial amateur radio stations occasionally operate, using the callsign prefix S0. This identifier has not been issued by the International Telecommunications Union . Radios 56,000 1997 Television broadcast stations NA Televisions 6,000 1997 Internet Service Provider s ISPs NA Country code .eh EH Economy of Western Sahara Africa topic Telecommunications in Telecommunications DEFAULTSORT Telecommunications In Western Sahara Category Communications in Western Sahara WesternSahara stub ... more details
The Global Telecommunications System GTS is a global network for the transmission of meteorology meteorological data from weather station s, satellite s and numerical weather prediction centres. The GTS consists of an integrated network of point to point circuits, and multi point circuits which interconnect meteorological telecommunication centres. The circuits of the GTS are composed of a combination of terrestrial and satellite telecommunication links. They comprise point to point circuits, point to multi point circuits for data distribution, multi point to point circuits for data collection, as well as two way multi point circuits. Meteorological Telecommunication Centres are responsible for receiving data and relaying it selectively on GTS circuits. The GTS is organized on a three level basis The Main Telecommunication Network MTN The Regional Meteorological Telecommunication Networks RMTNs The National Meteorological Telecommunication Networks NMTNs Satellite based data collection and or data distribution systems are integrated in the GTS as an essential element of the global, regional and national levels of the GTS. Data collection systems operated via geostationary or near polar orbiting meteorological environmental satellites, including the Argos System , are widely used for the collection of observational data from data collection platforms. Marine data are also collected through the International Maritime Mobile Service and Inmarsat satellites. External links http www.wmo.int pages prog www TEM GTS index en.html Global Telecommunications System Category Meteorological data and networks climate stub es Global Telecommunications System ... more details
otheruses Orbita, Spain Orbita is a Soviet Russian system of broadcasting and delivering TV signals via satellites. It is considered to be the first national television network network of satellite television . The Orbita system is based on communication satellite s in highly elliptical Molniya orbit s, as well as on many ground downlink TV stations for reception and relaying TV Signalling telecommunication signal s to Antenna radio antennas of TV sets of many local areas. The full deployment of the Orbita satellite system took place on 25 October 1967 when ground downlink stations of some cities of Soviet Siberia and the Far East began to receive regular TV programmes from Moscow based uplink Ground station station s via a Satellite constellation constellation of Molniya satellite Molniya satellites . External links http www.fas.org spp guide russia comm elliptical molniya.htm Molniya satellites the description http www.friends partners.org partners mwade craft molniya1.htm Molniya satellites http web.archive.org web 20041031045047 http english.pravda.ru culture 2001 10 01 16678.html Russian TV celebrates 70th Anniversary http reference.allrefer.com country guide study soviet union soviet union390.html Communications http www.fas.org irp imint docs rst AppA Part1 14.html Earth Application Satellites Category Communications satellites Category Soviet Earth satellites Category Television in the Soviet Union communications satellite stub de Orbita System ru ... more details
Unreferenced date December 2009 An Intelligent Electronic Device IED is a term used in the electric power industry to describe microprocessor based controllers of power system equipment, such as circuit breaker s, transformer s, and capacitor banks. Description IEDs receive data from sensors and power equipment, and can issue control commands, such as tripping circuit breakers if they sense voltage , Electric current current , or frequency anomalies, or raise lower voltage levels in order to maintain the desired level. Common types of IEDs include protective relaying devices, load tap changer controllers, circuit breaker controllers, capacitor bank switches, recloser controllers, voltage regulators, etc. Digital protective relay s are primarily IEDs, using a microprocessor to perform several protective, control, and similar functions. A typical IED can contain around 5 12 protection functions, 5 8 control functions controlling separate devices, an autoreclose function, self monitoring function, communication functions etc. Hence, they are aptly named as Intelligent Electronic Devices. Some recent IEDs are designed to support the IEC61850 standard for electrical substation substation automation, which provides interoperability and advanced communications capabilities. DEFAULTSORT Intelligent Electronic Device Category Electric power ... more details
Image Isoc lu web.jpg thumb right ISOC Luxembourg logo The Luxembourg Chapter of the Internet Society is a part of the global Internet Society and is a not for profit organization. It aims at being the local arm of ISOC, as well as relaying local concerns to the relevant Internet organizations. Every member of the chapter is also a member of the global Internet Society. Goals and activities ISOC Luxembourg shares the global goals of the Internet Society, as expressed in the http www.isoc.org isoc SOP.pdf ISOC strategic Operating Plan . In addition, it focuses on local and not so local, activities to make the Internet processes better known to the community. As an example, ISOC Luxembourg was http www.icannluxembourg.org the local host of the July 2005 meeting of ICANN . It also participates in the ICANN At Large community as a recognized At large structure. At the local level, the chapter is active in policy discussions related to the http www.dns.lu en country code top level domain .lu as well as being part of the http ipv6council.lu Luxembourg IPv6 council . Board of directors Brent Fr re Chairman Patrick Vande Walle Secretary and interim Treasurer External links http www.isoc.lu ISOC Luxembourg main site http icann2005.isoc.lu 2005 ICANN meeting web site DEFAULTSORT Isoc Luxembourg Category Internet governance Category Non profit organisations based in Luxembourg fr Internet Society Luxembourg ... more details
Multiple issues globalize August 2010 context August 2010 jargon March 2011 The National Communications Coordinator , commonly referred to as NCC , is one of the essential positions on a university Residence Hall Association s executive board. The NCC is the primary means of communication between his or her RHA and NACURH . The NCC does this by maintaining the school s affiliation status, choosing delegation s to go to wikt conference conferences , serving as the RHA s vote in conferences if an affiliated member , and relaying information and networking opportunities to the RHA from NACURH. The NCC could be part of the executive board or be a member of the RHA. This is dependent on the structure of the school s RHA. Some General Responsibilities Include Serve as the liaison between RHA, NACURH and the regional affiliate Attend and vote at regional and national conferences, in particular, NCC Business Meetings Serve as the delegation chair for conferences Coordinate all aspects of forming and sending a delegation to conferences including funding, spirit and other activities Relay information from other NACURH member schools to the RHA Prepare and submit all dues and reports as requested by NACURH and the regional affiliate, including monthly newsletters to regional institutions Coordinate the Of the Month process nominations and selections in conjunction with and or in the absence of a National Residence Hall Honorary chapter The NCC is the voting member in NACURH for the RHA and works to impact the national organization and its regional affiliate with items such as budgetary issues, legislation and voting on awards and other bids. References http www.nacurh.org resources Handbooks ncc NACURH NCC Handbook Category University and college residential buildings ... more details
Infobox Anatomy Name Internal arcuate fibers Latin fibrae arcuatae internae GraySubject 187 GrayPage 782 Image Gray699.png Caption Diagram showing the course of the arcuate fibers. Testut. 1. Medulla oblongata anterior surface. 2. Anterior median fissure . 3. Fourth ventricle . 4. Inferior olivary nucleus , with the accessory olivary nuclei . 5. Gracile nucleus . 6. Cuneate nucleus . 7. Trigeminal . 8. Inferior peduncles , seen from in front. 9. Posterior external arcuate fibers . 10. Anterior external arcuate fibers . 11. Internal arcuate fibers. 12. Peduncle of inferior olivary nucleus . 13. Nucleus arcuatus . 14. Vagus . 15. Hypoglossal . Image2 Gray694.png Caption2 Section of the medulla oblongata at about the middle of the olive . Arcuate fibers labeled at center right. System Precursor MeshName MeshNumber DorlandsPre f 05 DorlandsSuf 12361842 Internal arcuate fibers are the axon s of second order neuron s contained within the gracile nucleus gracile and cuneate nucleus cuneate nuclei of the medulla oblongata . These fibers cross decussate from one side of the medulla to the other to form the medial lemniscus . Part of the dorsal column medial lemniscus system second neuron , the internal arcuate fibers are important for relaying the sensation of touch fine touch and proprioception to the thalamus and ultimately to the cerebral cortex . External links BrainInfo Hier 792 http www.indiana.edu pietsch v414output07.html Photo at Indiana.edu Rhombencephalon Neural tracts Category Brainstem neuroscience stub ... more details
cleanup reason tone seems odd missing detail too many sections date February 2012 morerefs date September 2008 Dark Mailer is a controversial bulk e mail sending program. Operators often source zombie computers to send its e mail, although this is not the only method of transmission it supports. Its proxy support includes SOCKS v4, SOCKS v5, and HTTP CONNECT. It also supports relaying via SMTP and direct sending to recipient s mail servers. Where It s Sold? As the project was killed due to controversy it was continued by the original coders partner. There have been a number of Free versions floating around the internet of this spam tool. Every Free version contains errors and Trojan horse computing Trojans . Cracks and branches Dark Mailer is the hub of quite a few mass spamming utilities. One of the most prominent is dm.cgi , a script which bombards predefined e mail addresses using the CGI capabilities of compromised websites or whole servers. References reflist External links http www.msnbc.msn.com id 21134540 vp 29364866 26819130 Dark Mailer Mass Spammer Jailed Category Spamming Category Computer crimes web software stub ... more details
Unreferenced auto yes date December 2009 Elimination races in bicycle racing are a form of race wherein during the course of the race, certain participants are eliminated through various criteria. The most common types of elimination races are the Miss and Out and the Win and Out. Miss and Out The Miss and Out or Devil Take the Hindmost is a race run for individual competitors or, more rarely, for teams of two relaying each other as in the Madison cycling Madison . At the end of every lap or every set number of laps the last rider to cross the line is eliminated from the race. When just a handful of riders remain, they sprint for the finish. Tactically, the real racing in a devil happens at the back of the field. With riders at the front riding steadily and those behind moving up on the elimination laps to find a safe spot, the race favours riders with nerve and track craft. The telescoping of the field means crashes are more common than in other races, especially among inexperienced riders. Win and Out The Win and Out is similar to the Miss and Out, however, rather than the last rider being eliminated the first rider to cross the line is removed from the race. The first rider removed wins first place, the second rider removed wins second place, and so on. Portal Cycling Track cycling DEFAULTSORT Elimination Races Category Track cycling Cycling stub de Ausscheidungsfahren es Carrera de eliminaci n fr Course l limination ... more details
Wiktionary Forwarding may refer to Mail forwarding , a service that redirects mail from one address to another Email forwarding , the re sending of an email message onward to another email address Forwarding equivalence class , a set of packets with similar or identical characteristics that may be forwarded the same way Packet forwarding , the relaying of packets from one network segment to another by nodes in a computer network Port forwarding , the act of forwarding a network port from one network node to another Cisco Express Forwarding , an advanced layer 3 switching technology used mainly on the enterprise core network or the Internet Call forwarding , a telephony feature that allows calls to one phone number to be forwarded to another number Remote call forwarding , a telephony feature that allows call forwarding to be activated remotely Reverse path forwarding , a technique used in routers for ensuring loop free forwarding of packets in multicast routing and to help prevent IP address spoofing in unicast routing URL redirection , also called URL forwarding, domain redirection and domain forwarding, a technique that forwards web page visitors to another page Freight forwarding, a service by which a freight forwarder dispatches shipments via common carriers Timber forwarding, the transport of logs from the stump to the forest road by a forwarder In computing, the Hazard computer architecture Register forwarding forwarding of results in an instruction pipeline disambig ... more details
Infobox journal cover editor discipline peer reviewed language former names abbreviation IEEE Trans Commun publisher Institute of Electrical and Electronics Engineers country United States frequency Monthly history 1972 openaccess license impact impact year website http www.comsoc.org pubs jrnal transcom.html link1 http ieeexplore.ieee.org servlet opac?punumber 26 link1 name OPAC Link link2 link2 name JSTOR OCLC LCCN 73642335 CODEN IECMBT ISSN 0090 6778 eISSN 1558 0857 boxwidth An academic journal published by the IEEE Communications Society , IEEE Transactions on Communications focuses on all telecommunication including telephone, telegraphy, facsimile, and point to point television, by electromagnetic propagation, including radio wire aerial, underground, coaxial, and submarine cables waveguides, communication satellites, and lasers. Other topics include marine, aeronautical, space, and fixed station services repeaters, radio relaying, signal storage and regeneration telecommunication error detection and correction multiplexing and carrier techniques communication switching systems data communications and communication theory. References cite web title Top journals in computer science date 14 May 2009 work Times Higher Education accessdate 22 August 2009 url http www.timeshighereducation.co.uk story.asp?sectioncode 26&storycode 406557 External links http ieeexplore.ieee.org Xplore guesthome.jsp IEEE Xplore http www.comsoc.org IEEE Communications Society Category Engineering journals Category IEEE publications Transactions on Communications Category Telecommunications organizations engineering journal stub ... more details
Orphan date February 2009 Notability date November 2009 Infobox software name Sippy B2BUA screenshot developer http www.sippysoft.com Sippy Software, Inc. latest release version latest release date operating system Linux , BSD, Solaris genre SIP Server license GNU General Public License GPL website http www.b2bua.org Sippy B2BUA Homepage Sippy B2BUA is a RFC3261 compliant Session Initiation Protocol SIP Back to back user agent B2BUA software distributed under the terms of GPL Free Software license. Features 5,000 10,000 simultaneous sessions per server 150 200 calls second per server Realtime calls control and call data records CDRs generation using RADIUS Optional ability to use RTPProxy for media relaying Seamless compatibility with majority of popular SIP software and hardware on the market today Robustness and Resilence Simple and clean internal design making implementing new features and services easy B2BUA could be easily combined with other Open Source software, such as SIP Express Router to build complete softswitch solution. History Sippy B2BUA was designed with robustness and performance in mind and now being used by several hundreds ITSPs all around the globe. Citation needed date November 2009 The software now is being actively developed and maintained by the Sippy Software, Inc. . External links http www.b2bua.org Sippy B2BUA Homepage Category VoIP software Category Free VoIP software ... more details
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