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Topic: Telephony


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  Telephony - Wikipedia, the free encyclopedia
In telecommunication, Telephony encompasses the general use of equipment to provide voice communication over distances.
Rapid advancement in digital electronics is revolutionizing telephony by providing alternate means of voice communication than that provided by traditional telephone systems.
IP Telephony is a modern form of telephony which uses the TCP/IP protocol popularized by the internet to transmit digitized voice data.
en.wikipedia.org /wiki/Telephony   (249 words)

  
 Telephony - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-10-22)
Edison discovered that carbon grains, squeezed between two metal plates had a resistance that was related to the pressure, thus, the grains could vary their resistance as the plates moved in response to sound waves, and reproduce sound with good fidelity, without the problems associated with a liquid contact.
This style of transmitter remained standard in telephony until the 1980s, and is still produced.
Newer systems include IP telephony, ISDN, DSL, cell phone (mobile) systems, digital cell phone systems, cordless telephones, and the third generation cell phone systems that promise to allow high-speed packet data transfer.
encyclopedia.worldsearch.com /telephony.htm   (3570 words)

  
 Lotus Instant Messaging telephony extension
In the previous settings, the telephony server application connects to host 127.0.0.1 (localhost); the debug level is set to one, which prints only System.out (the higher the debug level the more verbose the debug output is produced); and debugprefix is the prefix appended to telephony server application output.
After the telephony server application login ID has been retrieved and serialized into an acceptable format, it is then published to the Lotus Instant Messaging server as the telephony attribute using a call to the generalAwarenessService interface changeAttr() method which accepts a STServer object and the attribute to be changed.
If one telephony server application publishes its login ID as the telephony attribute on a Lotus Instant Messaging server, and then another telephony server application does the same on the same server, the first server ID is overwritten, and in time, it is overwritten on all connected clients.
www-128.ibm.com /developerworks/lotus/library/st-telephony   (5111 words)

  
 Telephone - Wikipedia, the free encyclopedia
Newer systems include IP telephony, ISDN, DSL, mobile cellular phone systems, cordless telephones, and the third generation cell phone systems that promise to include high-speed packet data transfer.
Also known as Internet telephony or Voice over IP (VoIP), digital telephony is a disruptive technology that is rapidly replacing traditional telephone networks.
In addition to replacing the PSTN, digital telephony is also competing with mobile phone networks by offering free or lower cost connections via WiFi hotspots.
en.wikipedia.org /wiki/Telephone   (1731 words)

  
 Telephony   (Site not responding. Last check: 2007-10-22)
Telephony is the technology of transmitting voice, data, video or image signals over a great distance.
The traditional use is through telephone equipment where the base receives the incoming call through the phone line converts it to an FM radio signal and then broadcasts that signal to the handset or speaker.
With the advancement of telephony, computers can execute these functions through third-party subscriber line devices that provide the correct analog control signals and power to the telephone.
www.conexant.com /products/entry.jsp?id=35   (87 words)

  
 Telephony
Telephony manages the enterprise voice network and offers a wide range of production services to support the communications needs of University faculty, staff, and students.
Telephony also implements both intra-building and inter-building communications infrastructures in order to keep pace with the rapid growth of the University’s physical plant and satisfy the growing demand for network connectivity.
Telephony's goal is to provide state-of-the-art communications services and related internal business processes that are responsive to the needs of the University.
www.telecom.unc.edu   (123 words)

  
 Telephony VoIP internet phone solutions in Milwaukee, Southeastern Wisconsin and Illinois
ESI was the first manufacturer to build a truly "combined" telephone and voice mail system and has numerous patents for their unique design and features.
IP Telephony refers to the use of the Internet as a means to exchange spoken or other telephone information.
Therefore, international and other long-distance calls are more cost-effective with IP telephony because they are not subject to the telephone company's rate plans.
www.tsrnet.com /pages/telephony/telephony.htm   (260 words)

  
 Final Report of the SG on IP Telephony
As a growing number of IP Telephony gateways, and especially more advanced gateways, are deployed outside of the United States, the traffic patterns are likely to become less US-centric and the percentage of IP Telephony traffic that transits through the United States may fall.
Because IP Telephony service providers do not need to have their own network facilities, frameworks applied to traditional telephony that is based on network facilities may not be appropriate and new approaches may be called for.
Furthermore the delays involved in IP Telephony might typically be the same or shorter than those experienced in satellite telephony, and the sound quality may be comparable with mobile telephony.
www.itu.int /osg/spu/wtpf/wtpf2001/sgreport/revisedversion9march/secgenreport_e.html   (12004 words)

  
 Intel(R) White Papers - IP Telephony Basics   (Site not responding. Last check: 2007-10-22)
By bridging the traditional circuit-switched telephony world with the Internet, gateways offer the advantages of IP telephony to the most common, cheapest, most mobile, and easiest-to-use terminal in the world: the standard telephone.
Today's IP telephony products exceed this latency, so most connections sound like traditional calls routed over a satellite circuit (which are usable, but require some getting used to).
One of the key factors for IP telephony gateway developers to consider is the value of open systems versus proprietary systems.
www.intel.com /network/csp/resources/white_papers/4070web.htm   (1462 words)

  
 Java Telephony API v1.2   (Site not responding. Last check: 2007-10-22)
The Java Telephony API version 1.0 specification was released to the public on November 1, 1996.
Implementations of telephony servers choose the packages they support, depending upon the capabilities of their underlying platform and hardware.
Simple telephony applications will only need to use the core to accomplish their tasks, and do not need to concern themselves with the details of other packages.
java.sun.com /products/jtapi/jtapi-1.2/Overview.html   (4309 words)

  
 IP Telephony - HP Services
IP Telephony reduces the cost of telephony infrastructure, as well as long distance and related support and administration expenses.
The IP Telephony Support Package is just part of a complete lifecycle of IP Telephony services available to help you plan, design, implement, manage and support your end-to-end solution.
Wherever you are with your IP Telephony solution, we're ready to work with you - from a focused workshop to help you align business and technology goals to pinpoint the right solution, to handling the on-going management of your solution, network and help desk services.
www.hp.com /hps/spotlight/index_ipt.html   (455 words)

  
 Telephony - a Whatis.com definition
Telephony is the technology associated with the electronic transmission of voice, fax, or other information between distant parties using systems historically associated with the telephone, a handheld device containing both a speaker or transmitter and a receiver.
A telephony board is often integrated into new machines targeted for small business and home office users.
A Telephony API (TAPI) is available from Microsoft and Intel that allows Windows client applications to access voice services on a server and that interconnects PC and phone systems.
searchnetworking.techtarget.com /sDefinition/0,,sid7_gci213113,00.html   (449 words)

  
 telephony definition - Small Business Computing Online Dictionary of IT Terms: Powered by Webopedia
The term is used frequently to refer to computer hardware and software that performs functions traditionally performed by telephone equipment.
For example, telephony software can combine with your modem to turn your computer into a sophisticated answering service.
APEX Voice Communications provides computer telephony application development tools, and their home page offers links to their voice communications products, software features, typical applications, and company information.
sbc.webopedia.com /TERM/t/telephony.html   (459 words)

  
 Internet and Telephony
Our main development tool is Sun's Java Telephony API implemented by Lucent Technologies, which provides API's for controlling various aspects of telephony applications from simple call control to call center support.
Computer and telephony integration is provided by the Passageway Telephony Services software which provides the necessary drivers to allow a desktop computer to control a PBX switch and control calls and telephones connected to the switch through an IP network.
As the diagram below shows, the computer with the telephony services installed, functions as the telephony server and is able to serve client and server applications that make use of the telephony services through the telephony services module.
www.cs.cornell.edu /cnrg/multiplanar/telephony   (1542 words)

  
 SS7/IP Interworking Tutorial
In the future, IP telephony networks are expected to enable innovative new multimedia services while working seamlessly with legacy telephone networks.
In a public switched telephone network, for example, a dedicated 64 kilobits per second (kbps) end-to-end circuit is allocated for each call.
Signaling information is used to setup, manage and release voice calls, and support telephony services such as caller ID, toll-free calling, and mobile authentication and roaming services.
www.pt.com /tutorials/iptelephony   (238 words)

  
 TELEPHONY Magazine Advertiser Information - Telecommunications Marketing
TELEPHONY is the leading publication for all network service providers in the communications industry.
TELEPHONY reaches more than 62,000 subscribers—59,000 of whom are service providers at incumbent local exchange carriers, wireless carriers, competitive local exchange carriers, cable operators, Internet service providers and long-distance service providers.
TELEPHONY’S UNPARALLELLED TECHNOLOGY coverage offers readers the communication industry’s most comprehensive view at what’s hot, what’s not and what it all means.
advertisers.telephonyonline.com   (327 words)

  
 IP telephony - a Whatis.com definition
IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN).
The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.
IP telephony is an important part of the convergence of computers, telephones, and television into a single integrated information environment.
searchnetworking.techtarget.com /sDefinition/0,,sid7_gci212388,00.html   (324 words)

  
 Net2Phone - Cable Telephony Division
Net2Phone offers cable operators the ability to add full-featured residential telephony service to their existing service offerings faster and with less expense than developing their own service.
With the addition of telephony service, cable operators can offer their subscribers a “triple play” bundle of video, data and voice service.
Cable operators are encouraged to use their own brand for telephony service, deliver a single bill and provide direct customer support to their subscribers.
web.net2phone.com /cable   (420 words)

  
 VoIP - IP Telephony - White Papers, Webcasts and Case Studies - ZDNet
IP telephony allows you to marry your voice and data networks, eliminating duplicate costs, headaches and hassle, not to mention traditional PBX leases, per-minute toll charges and more.
This paper explores the new requirements that migration to converged voice and data networks is creating for IP Telephony architectures and their operation and management....
Internet Protocol Telephony (IPT) networks are gaining significant momentum in the enterprise market, with the IP-based equipment market including IP telephones to exceed $10.9 billion worldwide in 2009, a compound annual growth rate of more than 19%.
whitepapers.zdnet.com /search.aspx?scid=6&tag=zdfd.dir2.wplink3   (1969 words)

  
 Internet Telephony Special
IP telephony market is expected to grow at a CAGR of 119% to touch Rs 13,000 crore by 2005, according to IDC.
In regard to Internet Telephony, the Government had taken the following decision in 1999 and the same was incorporated in the National Telecom Policy document released the same year: "The Internet Telephony shall not be permitted at this stage.
As per NTP-99, the Government was required to monitor the technological innovations relating to Internet Telephony and its impact on national development and review the present policy of not permitting any form of IP Telephony.
www.ciol.com /content/special/itelephony   (622 words)

  
 Telephony
Telephony, a century-old technology, is expanding rapidly in new directions.
In addition to traditional landline phones, telephony now includes a diverse range of technologies, including mobile (cellular, satellite), and broadband (cable, DSL, satellite) connections.
This section highlights some of the trends in telephony and estimates the volume of this information flow.
www.sims.berkeley.edu /research/projects/how-much-info-2003/telecom.htm   (1234 words)

  
 The Wait for IP Slows Down Cable Telephony, According to Cahners In-Stat Group
Total worldwide cable telephony subscribers are forecasted to rise from 2.8 million at the end of 2000 to over 15 million by 2005, with the vast majority of subscribers residing in North America and Western Europe.
Consumers signing up for cable telephony service are influenced by three main factors: discontent with their local exchange carrier (LEC), attractive price discounts on both primary and additional telephone lines, and compelling "service bundles" that can include cable telephony, high-speed Internet service, and digital cable TV service.
The report also provides forecasts for worldwide cable telephony subscribers, IP cable telephony subscribers, and worldwide installed cable telephony lines through the year 2005.
www.instat.com /pr/2001/mb0108dc_pr.htm   (728 words)

  
 Growth of Internet Telephony
Internet Telephony (or 'Voice on the Net' (VON)) technology digitizes speech and transmits it as compressed data which is split and sent in packets over the Internet, to later be re-assembled at the receiving end.
In phone-to-phone Internet Telephony the customer, using an ordinary telephone, dials an access code and then the telephone number; the access code then routes the call to a special computer gateway (the IP network) [17].
The Commission argues that "[t]he time period required [in Internet Telephony] for processing and transmission from one termination point to the other is generally still such that it cannot be considered as of the same quality as a standard real-time service" [27].
firstmonday.org /issues/issue4_6/mohammed/index.html   (4460 words)

  
 Telecom - ROOT
Get customized telephony products to market faster and easier with Texas Instruments' cost-effective, ready-to-go software and application-specific solutions.
Telephony solutions may encompass voice or data processing, may be of a wired or wireless nature, and may be employed via either the PSTN (Public Switched Telephone Network) or across local-area (LAN) or wide-area networks (WAN).
Telephony is a significant application that benefits greatly from digital signal processing.
focus.ti.com /docs/apps/catalog/overview/overview.jhtml?templateId=2459&path=templatedata/cm/level1/data/telephony_ovw   (155 words)

  
 Global Hosted IP Telephony and Integrated Access Services Market   (Site not responding. Last check: 2007-10-22)
Increasing adoption of IP telephony is opening up new opportunities for voice and data service providers as well as systems integrators, resellers, and vendors.
The hosted IP telephony and integrated access services market is experiencing rapid growth after two years of its inception.
The increasing adoption of IP telephony is causing a redefinition of market roles and a re-distribution of revenue streams.
www.frost.com /prod/servlet/report-brochure.pag?id=A503-01-00-00-00   (1678 words)

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