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Field of telecommunication services
Telephony (/təˈlɛfəni/ tə-LEF-ə-nee) is the field of technology involving the development, application, and deployment of telecommunications services
Telephony
Methods of delivering voice communications and multimedia over IP networks
Voice over Internet Protocol (VoIP), also known as IP telephony, is a set of technologies used primarily for voice communication sessions over Internet
Voice_over_IP
Wireless telephone services for mobile phones
Mobile telephony is the provision of Wireless telephone services to mobile phones, distinguishing it from fixed-location telephony provided via landline
Mobile_telephony
Communication system
Contact center telephony is the communication and collaboration technology used by organisations to manage high volumes of telephone calls. Typically
Contact_center_telephony
Technology that allows interactions on a telephone and a computer to be coordinated
Computer-telephony integration, also called computer–telephone integration or CTI, is a general term for technologies that coordinate interactions between
Computer telephony integration
Computer_telephony_integration
The Java Telephony API (JTAPI) was an application programming interface designed to provide telephony call control within the Java programming language
Java_Telephony_API
Production of voice conversation through computers and data network
Packet telephony is the use of personal computers and a packet data network to produce a voice conversation. It consists of telephony and data tightly
Packet_telephony
Initiating a telephone call by turning the rotary dial or pressing the keypad buttons
v t e Telephony Types Landline Mobile telephony Cable telephony Photophone Accessories Answering machine Caller ID Connectivity Cable protection system
Dialling_(telephony)
Analog multiplexing technique used in early telephone systems
Carrier telephony is a method for carrying several simultaneous long-distance telephone conversations over the same transmission line. Each conversation
Carrier_telephony
Telegraph exchanges worked mainly on a store and forward basis. Although telephonic devices were in use before the invention of the telephone exchange, their
History_of_the_telephone
Typographical symbol (*)
ABOVE U+2217 ∗ ASTERISK OPERATOR (∗) May be used as the star key (telephony) U+229B ⊛ CIRCLED ASTERISK OPERATOR (⊛, ⊛) U+2722 ✢ FOUR
Asterisk
A sender is a type of circuit and system module in 20th-century electromechanical telephone exchanges. It registered the telephone numbers dialed by the
Sender_(telephony)
Open source telephony engine
Yate (Yet Another Telephony Engine) is a free and open source communications software with support for video, voice and instant messaging. It is an extensible
Yate_(software)
Global system of connected computer networks
the World Wide Web (WWW), electronic mail, discussion groups, internet telephony, streaming media and file sharing. Most traditional communication media
Internet
Voice-over-IP communications protocol
application layer of the Internet protocol suite and is widely used in Internet telephony, private IP-based telephone systems, and mobile communication over LTE
Session_Initiation_Protocol
The 3GPP/NGN IP Multimedia Subsystem (IMS) multimedia telephony service (MMTel) is a global standard based on the IMS, offering converged, fixed and mobile
Multimedia_telephony
Digital telephony over cable TV type networks
Cable telephony is a form of digital telephony over cable TV type networks. A telephone interface installed at the customer's premises converting analog
Cable_telephony
An Internet telephony service provider (ITSP) offers digital telecommunications services based on Voice over Internet Protocol (VoIP) that are provisioned
Internet telephony service provider
Internet_telephony_service_provider
Telephone service provided via wire or cable
v t e Telephony Types Landline Mobile telephony Cable telephony Photophone Accessories Answering machine Caller ID Connectivity Cable protection system
Landline
American private museum
The American Museum of Telephony, known as the JKL Museum of Telephony, is a private telephone and telephone memorabilia museum originally located in
JKL_Museum_of_Telephony
Moldovan telecommunications company
telephony market (89%). However, its market share was lower in other sectors: broadband internet (56.4%), pay television (55%) and mobile telephony (9%)
Moldtelecom
Microsoft Windows API
The Telephony Application Programming Interface (TAPI) is a Microsoft Windows API, which provides computer telephony integration and enables PCs running
Telephony Application Programming Interface
Telephony_Application_Programming_Interface
Data center-hosted voice and info transfer services
voice has become part of the cloud phenomenon. Cloud telephony (also known as hosted telephony) refers specifically to voice services and more specifically
Cloud_communications
Type of mobile phone
communication are also able to be used for direct-to-phone satellite telephony. The first voice signals relayed via satellite were transmitted in 1958
Satellite_phone
Sound indicating an incoming call
published by hobbyists to generate or detect ringing voltage for analogue telephony. A closed system, such as an intercom or private branch exchange, need
Ringing_(telephony)
Country in North America
internet connection and 81% over the age of 6 have a mobile phone. Mobile telephony has the advantage of reaching all areas at a lower cost, and the total
Mexico
article is likely to be merged, redirected, or deleted. Find sources: "PRX" telephony – news · newspapers · books · scholar · JSTOR (June 2019) (Learn how and
PRX_(telephony)
XXXX 9 CDMA Mobile telephony Expresso/Sudatel 70 20X XXXX 9 CDMA Mobile telephony Expresso/Sudatel 70 50X XXXX 9 CDMA Mobile telephony Expresso/Sudatel
Telephone_numbers_in_Senegal
American telecommunications company (1885–2024)
this time, the company was nicknamed Ma Bell. AT&T closely monitored new telephony technologies, although initially for private communication. In 1906, it
AT&T_Corporation
This is a list of telephony terminology and acronyms which relate to telephony networks. Contents: Top 0–9 A B C D E F G H I J K L M N O P Q R S T U V
List_of_telephony_terminology
Semi-governmental Telecom in Cyprus
service has been renamed Cytavision. In 1988, the company launched mobile telephony offer under the brand Cytagsm, which became Cytamobile in 2004, and the
Cyta
The term telephony application server refers to an entity in a telephone network that carries out functions that are not directly related to the routing
Telephony_application_server
Computer telephony integration standard developed and promoted by Novell and AT&T
Telephony Server Application Programming Interface was a computer telephony integration standard developed and promoted by Novell and AT&T. It consisted
Telephony Server Application Programming Interface
Telephony_Server_Application_Programming_Interface
British public service broadcaster
and Macquarie Group Limited and rebranded Red Bee Media. The BBC's IT, telephony and broadcast technology were brought together as BBC Technology Ltd in
BBC
XML standard
(CCXML) is an XML standard designed to provide asynchronous event-based telephony support to VoiceXML. Its current status is a W3C recommendation, adopted
Call Control eXtensible Markup Language
Call_Control_eXtensible_Markup_Language
the fixed telephony service in any locality within the Metropolitan area known as “San Salvador”. 3 Used for identifying the fixed telephony service in
Telephone numbers in El Salvador
Telephone_numbers_in_El_Salvador
Traffic prioritization and measure of network performance
description or measurement of the overall performance of a service, such as a telephony or computer network, or a cloud computing service, particularly the performance
Quality_of_service
Messaging and VoIP service owned by Meta
principal platforms, which are fully supported, are devices supporting mobile telephony running Android, and iPhones. As of 2025, the software requires at least
data stream to the user, similar to TCP. It is used directly by many telephony related profiles as a carrier for AT commands, as well as being a transport
List_of_Bluetooth_protocols
a global provider of cloud-based business telephony services. Its core product is a managed cloud telephony service for Microsoft Teams, sold to multinational
LoopUp
Index to lists of airline designators
ICAO's three-character airline designators and the airline call signs (telephony designator). All 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y
Airline_codes
A telephony service provider, as defined in Microsoft's TAPI specification, is a software interface to a physical telephony device (such as a modem) that
Telephony_service_provider
Type of signaling in telephony
telecommunication, supervision is the monitoring of a telecommunication circuit for telephony to convey to an operator, user, or a switching system, information about
Supervision_(telephony)
Deprecated technical standard for data access over a cellular network
"BBC kills off WML site". Team Digit (Jan 2006). "Fast Track to Mobile Telephony". Internet Archive. Jasubhai Digital Media. Archived from the original
Wireless_Application_Protocol
Exchange of information required to set up a telecommunications connection
such as the calling and/or called telephone number. In the early days of telephony, with operator handling calls, the addressing formation is by voice as
Signaling (telecommunications)
Signaling_(telecommunications)
Interdnestrcom is a Transnistrian telecommunication company providing mobile communication services for Transnistria, a breakaway unrecognized state internationally
Interdnestrcom
Telephone system with IP connectivity
An IP PBX (“Internet Protocol private branch exchange”) is a telephony system that uses Internet Protocol to transmit voice and other communication data
IP_PBX
Protocols and procedures to combat caller ID spoofing
eliminating long distance charges. As these systems became popular, new telephony providers emerged that offered centralized SIP routing, allowing both
STIR/SHAKEN
Model in telecommunications
Traffic mix is a traffic model in telecommunication engineering and teletraffic theory. A traffic mix is a modelisation of user behaviour. In telecommunications
Traffic_mix
American networking company
Zoom Telephonics, Inc. was an American networking company that began as a manufacturer of modems and other computer networking and telephony hardware
Zoom_Telephonics
breakup. Area codes: Until 2013, Telekom Srbija had a monopoly on fixed telephony services. When the new regulation came in force, competition became allowed
Telephone_numbers_in_Serbia
American telecommunications software company
over Internet Protocol (VoIP) software during the emergence of Internet telephony in the 1990s. The company, headquartered in Boca Raton, Florida, traded
Netspeak
focused on data conferencing, another on PC telephony and another on adding videoconferencing to PC telephony. Intel combined these teams into what became
History_of_videotelephony
Coin or card-operated public telephone
dependent on call duration. Following the explosive growth of mobile telephony, the use of payphones, and the number installed, has decreased greatly;
Payphone
Type of shared telephone line
Unsourced material may be challenged and removed. Find sources: "Party line" telephony – news · newspapers · books · scholar · JSTOR (June 2025) (Learn how and
Party_line_(telephony)
Type of telephone adapter
Wikimedia Commons has media related to Analog telephony adapter. An analog telephone adapter (ATA) or FXS gateway is a device for connecting traditional
Analog_telephone_adapter
Berane, Plav, Rožaje, Andrijevica 52 89 Pljevlja, Žabljak 77 — Corporate telephony 78 — VoIP operators (including m:tel, Telemach Montenegro, etc.) 80 —
Telephone numbers in Montenegro
Telephone_numbers_in_Montenegro
Serbian-American engineer and inventor (1856–1943)
degree. He then gained practical experience in the early 1880s working in telephony and at Continental Edison in the new electric power industry. In 1884
Nikola_Tesla
ECTF (the Enterprise Computer Telephony Forum) was formed in 1995 by telephony equipment and software suppliers to improve the interoperability of various
ECTF
Operating system for mobile devices
2007, Google had filed several patent applications in the area of mobile telephony. On September 23, 2008, Android was introduced by Andy Rubin, Larry Page
Android_(operating_system)
National Significant Numbers (NSN): seven digits Format: +960 xxx xxxx The current numbering plan was introduced in 2005. "Maldives". v t e v t e
Telephone numbers in the Maldives
Telephone_numbers_in_the_Maldives
diversified its operations by incorporating Internet service and mobile telephony. It has also expanded its operations to Colombia, Peru, Chile, Argentina
Mass_media_in_Mexico
Topics referred to by the same term
Look up AQ or aq in Wiktionary, the free dictionary. AQ, Aq, aQ, or aq may refer to: A. Q. Shipley (Allan Quay Shipley, born 1986), known as AQ, American
AQ
Serbian telecommunications company
PPF Telecom Group. As of 2020,[update] it is the second largest mobile telephony operator with market share of 36.98%. Originally launched in 1994 as Mobtel
Yettel_Serbia
Open-source project for GSM/UMTS mobile applications
project for mobile telephony (GSM/UMTS) applications. It is built on 3GPP standards and uses a high-level D-Bus API for use by telephony applications. oFono
OFono
Copying of one cellular device's identity to another
Phone cloning is the copying of a cellular device's identity to another. Analogue mobile telephones were notorious for their lack of security. Casual listeners
Phone_cloning
2015 matricide in Missouri, U.S.
Kristy Blanchard, Gypsy's stepmother, claims that Michelle Dean told her telephonically that Blanchard would get 50% of the money made from the show. Despite
Murder_of_Dee_Dee_Blanchard
Belgian mobile telephony provider
as BASE) is a telecommunications operator in Belgium, offering mobile telephony, internet, and TV. It is a subsidiary of Telenet. It competes with Proximus
BASE_(mobile_operator)
Type of call-progress tone
files? See media help. A busy signal (or busy tone or engaged tone) in telephony is an audible call-progress tone or audible signal to the calling party
Busy_signal
(UTC) 3 XXXXXX 33 XXXXXX Mobile telephony services N/A N/A Ooredoo 27.VII.2010 21:01 (UTC) 4 XXXXXX 44 XXXXXX Fixed telephony services N/A N/A Ooredoo 27
Telephone_numbers_in_Qatar
Portable telephone that connects to a landline
base station re-charges when the handset rests in its cradle. Radio telephony (telephony without wires) predated cordless phones by at least two decades.
Cordless_telephone
Country in South Asia
report, voice telephony subscription rate was at 2.70% of total population for fixed phones and 138.59% for mobile; 98% of all voice telephony was through
Nepal
Portable device to make telephone calls using a radio link
access to the public switched telephone network (PSTN). Modern mobile telephony relies on a cellular network architecture, which is why mobile phones
Mobile_phone
Local telephone service is the provision of telecommunications networks and services within a limited geographic region. Traditionally, local telephone
Local_telephone_service
Telephone numbering system in Suriname
number – West Suriname Fixed telephony services – Telesur 22 XXXX 6 6 Geographic number – West Suriname Fixed telephony services – Telesur 23 XXXX 6 6
Telephone_numbers_in_Suriname
Telephone call charged at a higher rate
In telecommunications, a long-distance call (U.S.) or trunk call (also known as a toll call in the UK [citation needed]) is a telephone call made to a
Long-distance_calling
Turkmen telecommunications company
Telecommunications Founded 27 January 1994 Headquarters Ashgabat, A. Nyýazow şaýoly 104 Products Mobile Telephony, Internet Website https://www.astu.tm/
Ashgabat City Telephone Network
Ashgabat_City_Telephone_Network
Computer telephony software
In computer telephony, an automatic dialler (shortened to an auto-dialler or more simply in context just a dialler, and also known as an outbound dialler)
Auto_dialer
This article covers the telephone services in Turkey. The political authority overseeing telecommunications in Turkey is the Ministry of Transport, Maritime
Telephone_services_in_Turkey
Standardized pronunciation of letters
alphabet, radio alphabet, radiotelephony alphabet, telephone alphabet, and telephony alphabet. A spelling alphabet is also often called a phonetic alphabet
Spelling_alphabet
Telephone numbers in Kosovo are administered by the Regulatory Authority of Electronic and Postal Communications (Albanian: Autoriteti Rregullativ i Komunikimeve
Telephone_numbers_in_Kosovo
Transfer of information or power that does not require the use of physical wires
proliferation of commercial wireless technologies such as cell phones, mobile telephony, pagers, wireless computer networks, cellular networks, the wireless Internet
Wireless_communication
Night service in telephony is a feature of private branch exchanges and other business telephone systems, whereby for a set period during the day (usually
Night_service_(telephony)
Telecommunications in the United Kingdom have evolved from the early days of the telegraph to modern fibre broadband and high-speed 5G networks. Telegraph
Telecommunications in the United Kingdom
Telecommunications_in_the_United_Kingdom
Aggregate of all public telephone networks
operated by national, regional, or local telephony operators. It provides infrastructure and services for public telephony. The PSTN consists of telephone lines
Public switched telephone network
Public_switched_telephone_network
Spanish multinational telecommunications company
and mobile network providers in the world. It provides fixed and mobile telephony, broadband, and subscription television, operating in Europe and the Americas
Telefónica
Collection of electronic switches arranged in a matrix
switches are commonly used in information processing applications such as telephony and circuit switching, but they are also used in applications such as
Crossbar_switch
The BT Museum was a telecommunications museum run by BT, that held artefacts and exhibits on the history of telecommunications in the United Kingdom. It
BT_Museum
1936 surrealist sculpture by Salvador Dali
Lobster Telephone (also known as Aphrodisiac Telephone) is a Surrealist object, created by Salvador Dalí in 1936 for the English poet Edward James (1907–1984)
Lobster_Telephone
Device that both transmits and receives
In radio communication, a transceiver is an electronic device which is a combination of a radio transmitter and a receiver, hence the name. It can both
Transceiver
Serbian telecommunication company
At present, Telekom Srbija provides the following services: The Mobile Telephony of Serbia (mts) subdivision was created in June 1997 and started operating
Telekom_Srbija
This is a comparison of standards of wireless networking technologies for devices such as mobile phones. A new generation of cellular standards has appeared
Comparison of mobile phone standards
Comparison_of_mobile_phone_standards
Swiss telecommunications company
Swiss telecommunications company focusing on mobile telephony and fiber-optic fixed-line telephony services. It operates the third-largest mobile network
Salt_Mobile
Telecommunications in Bulgaria include radio, television, fixed and mobile telephones, and the Internet. Until the mid-1930s, telephone exchanges were
Telecommunications in Bulgaria
Telecommunications_in_Bulgaria
Network for carrying telephone calls
operators leases capacity wholesale from a telephone company and sells telephony service to the public directly. Telephone service (disambiguation) "1870s
Telephone_network
US telephony and computer company
Computer Consoles, Inc. or CCI was a telephony and computer company located in Rochester, New York, United States, which did business first as a private
Computer_Consoles,_Inc.
Security profile for Real-time Transport Protocol
The Secure Real-time Transport Protocol (SRTP) is a profile for Real-time Transport Protocol (RTP) intended to provide encryption, message authentication
Secure Real-time Transport Protocol
Secure_Real-time_Transport_Protocol
The area codes in Pakistan consists of two to five digits; generally smaller the city, longer the prefix. All large cities have two-digit codes. The smaller
List of dialling codes in Pakistan
List_of_dialling_codes_in_Pakistan
Topics referred to by the same term
081 may refer to: 081, the telephone dialing code for the City of Naples and surroundings in Italy 081, a former dialling code for London, UK (1990–1995)
081
In CDMA-based cellular networks, cell breathing is a mechanism which allows overloaded cells to offload subscriber traffic to neighbouring cells by changing
Cell_breathing_(telephony)
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