The Telephones Portal
A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user. The term is derived from Greek: τῆλε (tēle, far) and φωνή (phōnē, voice), together meaning distant voice. A common short form of the term is phone, which came into use early in the telephone's history. Nowadays, phones are almost always in the form of smartphones or mobile phones, due to technological convergence.
In 1876, Alexander Graham Bell was the first to be granted a United States patent for a device that produced clearly intelligible replication of the human voice at a second device. This instrument was further developed by many others, and became rapidly indispensable in business, government, and in households. ( Full article...)
A mobile phone (or cellphone) is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone ( landline phone). The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture, and therefore mobile telephones are called cellphones (or "cell phones") in North America. In addition to telephony, digital mobile phones support a variety of other services, such as text messaging, multimedia messaging, email, Internet access (via LTE, 5G NR or Wi-Fi), short-range wireless communications ( infrared, Bluetooth), satellite access ( navigation, messaging connectivity), business applications, payments (via NFC), multimedia playback and streaming ( radio, television), digital photography, and video games. Mobile phones offering only basic capabilities are known as feature phones ( slang: "dumbphones"); mobile phones that offer greatly advanced computing capabilities are referred to as smartphones. ( Full article...)
A smartphone (often simply called a phone) is a mobile device that combines the functionality of a traditional mobile phone with advanced computing capabilities. It typically has a touchscreen interface, allowing users to access a wide range of applications and services, such as web browsing, email, and social media, as well as multimedia playback and streaming. Smartphones have built-in cameras, GPS navigation, and support for various communication methods, including voice calls, text messaging, and internet-based messaging apps. ( Full article...)
Selected article -
T-Mobile is the brand of telecommunications by Deutsche Telekom.
T-Mobile may also refer to:
- Deutsche Telekom's current and former subsidiaries
- T-Mobile International AG, a holding company for Deutsche Telekom's mobile communications subsidiaries
- T-Mobile US, an American wireless network operator known simply as "T-Mobile"
- T-Mobile Austria, an Austria wireless network operator
- T-Mobile Polska, a Polish mobile phone network operator
- T-Mobile Czech Republic, a Czech wireless network operator
- T-Mobile Netherlands, now known as Odido, a Dutch mobile phone network operator
- T-Mobile UK, a former UK mobile phone network operator ( Full article...)
Types of phones -
A feature phone (also spelled featurephone) is a type or class of mobile phone that retains the form factor of earlier generations of mobile telephones, typically with press-button based inputs and a small non-touch display. They tend to use an embedded operating system with a small and simple graphical user interface, unlike large and complex mobile operating systems such as Android from Google or iOS from Apple.
The functions of feature phones are limited compared to smartphones, which integrate the phone with an Internet communications device; following the rise of smartphones, the feature phone has sometimes been referred to by the retronym dumbphone. However, some feature phones can provide functions found in smartphones, including Internet capabilities, apps and mobile games. ( Full article...)Selected audio -
A red box is a phreaking device that generates tones to simulate inserting coins in pay phones, thus fooling the system into completing free calls. In the United States, a nickel is represented by one tone, a dime by two, and a quarter by a set of five. Any device capable of playing back recorded sounds can potentially be used as a red box. Commonly used devices include modified Radio Shack tone dialers, personal MP3 players, and audio-recording greeting cards. ( Full article...)
List articles
- Comparison of smartphones
- List of best-selling mobile phones
- List of countries by number of broadband Internet subscriptions
- List of countries by number of telephone lines in use
- List of countries by smartphone penetration
- List of country calling codes
- List of iPhone models
- List of mobile network operators
- List of mobile phone brands by country
- List of mobile phone generations
- List of telephone operating companies
Related portals
General images -
-
This layout of the camera viewfinder was first introduced by Apple with iOS 7 in 2013. Towards the late 2010s, several other smartphone vendors have ditched their layouts and implemented variations of this layout. (from Smartphone) -
-
-
Mobile/desktop convergence: the Librem 5 smartphone can be used as a basic desktop computer (from Smartphone) -
Historical marker commemorating the first telephone central office in New York State (1878) (from History of the telephone) -
The back of a Nokia 9 PureView. It features a five-lens camera array with Zeiss optics, using a mixture of color and monochrome sensors. (from Smartphone) -
Apple iPhone smartphone (from History of the telephone) -
1896 Telephone ( Sweden) (from History of the telephone) -
-
-
People using phones while walking (from Mobile phone) -
Typical mobile phone mini- SIM card (from Mobile phone) -
Mobile payment system. (from Smartphone) -
1917 wall telephone, open to show magneto and local battery (from History of the telephone) -
Inserted memory and SIM cards (from Smartphone) -
A French Gower telephone of 1912 at the Musée des Arts et Métiers in Paris (from History of the telephone) -
Optical track pad sensor of an HTC Legend, 2010. (from Smartphone) -
A smartphone touchscreen (from Smartphone) -
Philipp Reis, 1861, constructed the first telephone, today called the Reis telephone. (from History of the telephone) -
Smartphone with infrared transmitter on top for use as remote control (from Smartphone) -
A sign in the US restricting cell phone use to certain times of day (no cell phone use between 7:30–9:00 am and 2:00–4:15 pm) (from Mobile phone) -
A 19th century acoustic tin can or "lovers' telephone" (from History of the telephone) -
-
Actor portraying Alexander Graham Bell in a 1932 silent film. Shows Bell's second telephone transmitter ( microphone), invented 1876 and first displayed at the Centennial Exposition, Philadelphia. (from History of the telephone) -
A driver using two handheld mobile phones at once (from Mobile phone) -
A Moto G7 Power; its display uses a tall aspect ratio and includes a "notch". (from Smartphone) -
Bell prototype telephone stamp(from History of the telephone)
Centennial Issue of 1976 -
The master telephone patent granted to Bell, 174465, March 10, 1876 (from History of the telephone) -
A user consulting a mapping app on a phone (from Smartphone) -
Personal Handy-phone System mobiles and modems, 1997–2003 (from Mobile phone) -
Scrapped mobile phones (from Mobile phone) -
Cellular networks work by only reusing radio frequencies (in this example frequencies f1-f4) in non adjacent cells to avoid interference (from Mobile phone) -
Thomas Edison invented the carbon microphone which produced a strong telephone signal. (from History of the telephone) -
Private conversation, 1910 (from History of the telephone) -
-
The back of a Huawei P30. It features three rear-facing camera lenses with Leica optics. (from Smartphone) -
The Motorola DynaTAC 8000X. In 1983, it became the first commercially available handheld cellular mobile phone. (from Mobile phone) -
Mobile payment system (from Mobile phone) -
A sign along Bellaire Boulevard in Southside Place, Texas ( Greater Houston) states that using mobile phones while driving is prohibited from 7:30 am to 9:00 am and from 2:00 pm to 4:15 pm. (from Smartphone)
-
The LG Prada with a large capacitive touchscreen introduced in 2006 (from Smartphone) -
Tooltip in Kiwi Browser, a Google Chromium derivative, reveals the full URL by hovering over the tab list using the stylus on a Samsung Galaxy Note 4. (from Smartphone) -
Several BlackBerry smartphones, which were highly popular in the mid-late 2000s (from Smartphone) -
Antonio Meucci's telephone. (from History of the telephone) -
The original Apple iPhone; following its introduction the common smartphone form factor shifted to large touchscreen software interfaces without physical keypads (from Smartphone) -
Alexander Graham Bell was awarded the first U.S. patent for the invention of the telephone in 1876. (from History of the telephone) -
A New York City driver holding two phones (from Smartphone) -
Dupuis and Haug during a GSM meeting in Belgium, April 1992 (from Mobile phone) -
Elisha Gray, 1876, designed a telephone using a water microphone in Highland Park, Illinois. (from History of the telephone) -
Active mobile broadband subscriptions per 100 inhabitants (from Mobile phone) -
Old Receiver schematic, c.1906 (from History of the telephone) -
Mobile phone subscribers per 100 inhabitants. 2014 figure is estimated. (from Mobile phone) -
A text message (SMS) (from Mobile phone) -
Antonio Meucci, 1854, constructed telephone-like devices. (from History of the telephone) -
A Samsung Galaxy S20 Plus, featuring a "hole-punch" camera (from Smartphone) -
Android smartphones (from Mobile phone) -
Top of cellular telephone tower (from History of the telephone) -
"Device options" menu of Samsung Mobile's TouchWiz user interface as of 2013, accessed by holding the power button for a second (from Smartphone) -
The Nokia 9110 Communicator, opened for access to keyboard (from Smartphone) -
IBM Simon and charging base (1994) (from Smartphone) -
Martin Cooper of Motorola, shown here in a 2007 reenactment, made the first publicized handheld mobile phone call on a prototype DynaTAC model on 3 April 1973. (from Mobile phone) -
A smartphone displaying the homepage of the English Wikipedia (from Smartphone) -
Two decades of evolution of mobile phones, from a 1992 Motorola 8900X-2 to the 2014 iPhone 6 Plus (from Mobile phone)
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.jpg)
.jpg)
.jpg)
.jpg)
.JPG)
Selected biography
Martin Cooper (born December 26, 1928) is an American engineer. He is a pioneer in the wireless communications industry, especially in radio spectrum management, with eleven patents in the field.
On April 3, 1973, he placed the first public call from a handheld portable cell phone while working at Motorola, from a Manhattan sidewalk to his counterpart at competitor Bell Labs. Cooper reprised the first handheld cellular mobile phone (distinct from the car phone) in 1973 and led the team that re-developed it and brought it to market in 1983. He is considered the "father of the (handheld) cell phone".
Cooper is co-founder of numerous communications companies with his wife and business partner Arlene Harris; He is co-founder and current Chairman of Dyna LLC, in Del Mar, California. Cooper also sits on committees supporting the U.S. Federal Communications Commission and the United States Department of Commerce. ( Full article...)List of selected biographies
|
|---|
Selected images
-
Photograph of the interior of the Prairie Grove Airlight Outdoor Telephone Booth in Prairie Grove, Arkansas, which is listed on the National Register of Historic Places -
Landline call blocking in use -
A traditional North American rotary phone dial. The associative lettering was originally used for dialing named exchanges but was kept because it facilitated memorization of telephone numbers. -
Historical telephone with the German imperial eagle and the heraldic shield of the House of Hohenzollern dynasty; Vollmer's Mill, Seebach, Baden-Württemberg, Germany -
Automatic electric Rotary dial telephone -
A Funke + Huster telephone inside the Idrija Mine, Slovenia -
-
-
Emergency telephones, on the Paris-Bordeaux railway line, Saint-Saviol station, Vienne, France -
Android smartphones -
Mailbox and public telephone in Haßfurt, Germany -
A police box outside Earl's Court tube station in London, built in 1996 and based on the 1929 Gilbert Mackenzie Trench design -
A historic telephone booth in Skansen, Stockholm -
-
Rotary dial telephone, probably from Belgium; the circuit diagram inside is in Dutch and French -
Apple iPhones -
-
A Northern Electric telephone, model number N415H, circa 1950 (probably) -
Rotary dial telephone, probably from Belgium; the circuit diagram inside is in Dutch and French -
Track-side emergency brake and emergency telephones at the platform of the metro station Aspern Nord, Donaustadt, Vienna, Austria -
A Bell Canada payphone with digital display -
A Western Electric candlestick phone from the 1920s -
Telephone booth box art outside the Tower of London, 2012 -
The AUTOVON was a worldwide American military telephone system that was built starting in 1963. -
An example of a K6, the most common red telephone box model, photographed in London in 2012 -
Acoustic telephone ad, The Consolidated Telephone Co., Jersey City, New Jersey, 1886 -
Wooden wall telephone with a hand-cranked magneto generator -
Public telephone, Bucharest, Romania
Topics
| Types | |
|---|---|
| Accessories | |
| Connectivity | |
| Calls | |
| Applications | |
|
Mobile networks, protocols |
| ||||||
|---|---|---|---|---|---|---|---|
| General operation | |||||||
|
Mobile devices |
| ||||||
| Mobile specific software |
| ||||||
| Culture | |||||||
| Environment and health | |||||||
| Law | |||||||
| |
Cellular network standards | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0G radio telephones (1946) | |||||||||
| 1G (1979) |
| ||||||||
| 2G (1991) |
| ||||||||
|
2G transitional (2.5G, 2.75G, 2.9G) |
| ||||||||
|
3G (1998) IMT-2000 (2001) |
| ||||||||
|
3G transitional (3.5G, 3.75G, 3.9G) |
| ||||||||
|
4G (2009) IMT Advanced (2013) |
| ||||||||
|
5G (2018) IMT-2020 (2021) |
| ||||||||
| Related articles | |||||||||
Subcategories
More
 |
Here are some tasks awaiting attention:
|
Telephones in the news
No recent news
Associated Wikimedia
The following Wikimedia Foundation sister projects provide more on this subject:
-
Commons
Free media repository -
Wikibooks
Free textbooks and manuals -
Wikidata
Free knowledge base -
Wikinews
Free-content news -
Wikiquote
Collection of quotations -
Wikisource
Free-content library -
Wikiversity
Free learning tools -
Wiktionary
Dictionary and thesaurus
The Telephones Portal
A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user. The term is derived from Greek: τῆλε (tēle, far) and φωνή (phōnē, voice), together meaning distant voice. A common short form of the term is phone, which came into use early in the telephone's history. Nowadays, phones are almost always in the form of smartphones or mobile phones, due to technological convergence.
In 1876, Alexander Graham Bell was the first to be granted a United States patent for a device that produced clearly intelligible replication of the human voice at a second device. This instrument was further developed by many others, and became rapidly indispensable in business, government, and in households. ( Full article...)
A mobile phone (or cellphone) is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone ( landline phone). The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture, and therefore mobile telephones are called cellphones (or "cell phones") in North America. In addition to telephony, digital mobile phones support a variety of other services, such as text messaging, multimedia messaging, email, Internet access (via LTE, 5G NR or Wi-Fi), short-range wireless communications ( infrared, Bluetooth), satellite access ( navigation, messaging connectivity), business applications, payments (via NFC), multimedia playback and streaming ( radio, television), digital photography, and video games. Mobile phones offering only basic capabilities are known as feature phones ( slang: "dumbphones"); mobile phones that offer greatly advanced computing capabilities are referred to as smartphones. ( Full article...)
A smartphone (often simply called a phone) is a mobile device that combines the functionality of a traditional mobile phone with advanced computing capabilities. It typically has a touchscreen interface, allowing users to access a wide range of applications and services, such as web browsing, email, and social media, as well as multimedia playback and streaming. Smartphones have built-in cameras, GPS navigation, and support for various communication methods, including voice calls, text messaging, and internet-based messaging apps. ( Full article...)
Selected article -
T-Mobile is the brand of telecommunications by Deutsche Telekom.
T-Mobile may also refer to:
- Deutsche Telekom's current and former subsidiaries
- T-Mobile International AG, a holding company for Deutsche Telekom's mobile communications subsidiaries
- T-Mobile US, an American wireless network operator known simply as "T-Mobile"
- T-Mobile Austria, an Austria wireless network operator
- T-Mobile Polska, a Polish mobile phone network operator
- T-Mobile Czech Republic, a Czech wireless network operator
- T-Mobile Netherlands, now known as Odido, a Dutch mobile phone network operator
- T-Mobile UK, a former UK mobile phone network operator ( Full article...)
Types of phones -
A feature phone (also spelled featurephone) is a type or class of mobile phone that retains the form factor of earlier generations of mobile telephones, typically with press-button based inputs and a small non-touch display. They tend to use an embedded operating system with a small and simple graphical user interface, unlike large and complex mobile operating systems such as Android from Google or iOS from Apple.
The functions of feature phones are limited compared to smartphones, which integrate the phone with an Internet communications device; following the rise of smartphones, the feature phone has sometimes been referred to by the retronym dumbphone. However, some feature phones can provide functions found in smartphones, including Internet capabilities, apps and mobile games. ( Full article...)Selected audio -
A red box is a phreaking device that generates tones to simulate inserting coins in pay phones, thus fooling the system into completing free calls. In the United States, a nickel is represented by one tone, a dime by two, and a quarter by a set of five. Any device capable of playing back recorded sounds can potentially be used as a red box. Commonly used devices include modified Radio Shack tone dialers, personal MP3 players, and audio-recording greeting cards. ( Full article...)
List articles
- Comparison of smartphones
- List of best-selling mobile phones
- List of countries by number of broadband Internet subscriptions
- List of countries by number of telephone lines in use
- List of countries by smartphone penetration
- List of country calling codes
- List of iPhone models
- List of mobile network operators
- List of mobile phone brands by country
- List of mobile phone generations
- List of telephone operating companies
Related portals
General images -
-
This layout of the camera viewfinder was first introduced by Apple with iOS 7 in 2013. Towards the late 2010s, several other smartphone vendors have ditched their layouts and implemented variations of this layout. (from Smartphone)
-
-
-
Mobile/desktop convergence: the Librem 5 smartphone can be used as a basic desktop computer (from Smartphone)
-
Historical marker commemorating the first telephone central office in New York State (1878) (from History of the telephone)
-
The back of a Nokia 9 PureView. It features a five-lens camera array with Zeiss optics, using a mixture of color and monochrome sensors. (from Smartphone)
-
Apple iPhone smartphone (from History of the telephone)
-
1896 Telephone ( Sweden) (from History of the telephone)
-
-
-
People using phones while walking (from Mobile phone)
-
Typical mobile phone mini- SIM card (from Mobile phone)
-
Mobile payment system. (from Smartphone)
-
1917 wall telephone, open to show magneto and local battery (from History of the telephone)
-
Inserted memory and SIM cards (from Smartphone)
-
A French Gower telephone of 1912 at the Musée des Arts et Métiers in Paris (from History of the telephone)
-
Optical track pad sensor of an HTC Legend, 2010. (from Smartphone)
-
A smartphone touchscreen (from Smartphone)
-
Philipp Reis, 1861, constructed the first telephone, today called the Reis telephone. (from History of the telephone)
-
Smartphone with infrared transmitter on top for use as remote control (from Smartphone)
-
A sign in the US restricting cell phone use to certain times of day (no cell phone use between 7:30–9:00 am and 2:00–4:15 pm) (from Mobile phone)
-
A 19th century acoustic tin can or "lovers' telephone" (from History of the telephone)
-
-
Actor portraying Alexander Graham Bell in a 1932 silent film. Shows Bell's second telephone transmitter ( microphone), invented 1876 and first displayed at the Centennial Exposition, Philadelphia. (from History of the telephone)
-
A driver using two handheld mobile phones at once (from Mobile phone)
-
A Moto G7 Power; its display uses a tall aspect ratio and includes a "notch". (from Smartphone)
-
Bell prototype telephone stamp(from History of the telephone)
Centennial Issue of 1976 -
The master telephone patent granted to Bell, 174465, March 10, 1876 (from History of the telephone)
-
A user consulting a mapping app on a phone (from Smartphone)
-
Personal Handy-phone System mobiles and modems, 1997–2003 (from Mobile phone)
-
Scrapped mobile phones (from Mobile phone)
-
Cellular networks work by only reusing radio frequencies (in this example frequencies f1-f4) in non adjacent cells to avoid interference (from Mobile phone)
-
Thomas Edison invented the carbon microphone which produced a strong telephone signal. (from History of the telephone)
-
Private conversation, 1910 (from History of the telephone)
-
-
The back of a Huawei P30. It features three rear-facing camera lenses with Leica optics. (from Smartphone)
-
The Motorola DynaTAC 8000X. In 1983, it became the first commercially available handheld cellular mobile phone. (from Mobile phone)
-
Mobile payment system (from Mobile phone)
-
A sign along Bellaire Boulevard in Southside Place, Texas ( Greater Houston) states that using mobile phones while driving is prohibited from 7:30 am to 9:00 am and from 2:00 pm to 4:15 pm. (from Smartphone)
-
The LG Prada with a large capacitive touchscreen introduced in 2006 (from Smartphone)
-
Tooltip in Kiwi Browser, a Google Chromium derivative, reveals the full URL by hovering over the tab list using the stylus on a Samsung Galaxy Note 4. (from Smartphone)
-
Several BlackBerry smartphones, which were highly popular in the mid-late 2000s (from Smartphone)
-
Antonio Meucci's telephone. (from History of the telephone)
-
The original Apple iPhone; following its introduction the common smartphone form factor shifted to large touchscreen software interfaces without physical keypads (from Smartphone)
-
Alexander Graham Bell was awarded the first U.S. patent for the invention of the telephone in 1876. (from History of the telephone)
-
A New York City driver holding two phones (from Smartphone)
-
Dupuis and Haug during a GSM meeting in Belgium, April 1992 (from Mobile phone)
-
Elisha Gray, 1876, designed a telephone using a water microphone in Highland Park, Illinois. (from History of the telephone)
-
Active mobile broadband subscriptions per 100 inhabitants (from Mobile phone)
-
Old Receiver schematic, c.1906 (from History of the telephone)
-
Mobile phone subscribers per 100 inhabitants. 2014 figure is estimated. (from Mobile phone)
-
A text message (SMS) (from Mobile phone)
-
Antonio Meucci, 1854, constructed telephone-like devices. (from History of the telephone)
-
A Samsung Galaxy S20 Plus, featuring a "hole-punch" camera (from Smartphone)
-
Android smartphones (from Mobile phone)
-
Top of cellular telephone tower (from History of the telephone)
-
"Device options" menu of Samsung Mobile's TouchWiz user interface as of 2013, accessed by holding the power button for a second (from Smartphone)
-
The Nokia 9110 Communicator, opened for access to keyboard (from Smartphone)
-
IBM Simon and charging base (1994) (from Smartphone)
-
Martin Cooper of Motorola, shown here in a 2007 reenactment, made the first publicized handheld mobile phone call on a prototype DynaTAC model on 3 April 1973. (from Mobile phone)
-
A smartphone displaying the homepage of the English Wikipedia (from Smartphone)
-
Two decades of evolution of mobile phones, from a 1992 Motorola 8900X-2 to the 2014 iPhone 6 Plus (from Mobile phone)
Selected biography
Martin Cooper (born December 26, 1928) is an American engineer. He is a pioneer in the wireless communications industry, especially in radio spectrum management, with eleven patents in the field.
On April 3, 1973, he placed the first public call from a handheld portable cell phone while working at Motorola, from a Manhattan sidewalk to his counterpart at competitor Bell Labs. Cooper reprised the first handheld cellular mobile phone (distinct from the car phone) in 1973 and led the team that re-developed it and brought it to market in 1983. He is considered the "father of the (handheld) cell phone".
Cooper is co-founder of numerous communications companies with his wife and business partner Arlene Harris; He is co-founder and current Chairman of Dyna LLC, in Del Mar, California. Cooper also sits on committees supporting the U.S. Federal Communications Commission and the United States Department of Commerce. ( Full article...)List of selected biographies
|
|---|
Selected images
-
Photograph of the interior of the Prairie Grove Airlight Outdoor Telephone Booth in Prairie Grove, Arkansas, which is listed on the National Register of Historic Places
-
Landline call blocking in use
-
A traditional North American rotary phone dial. The associative lettering was originally used for dialing named exchanges but was kept because it facilitated memorization of telephone numbers.
-
Historical telephone with the German imperial eagle and the heraldic shield of the House of Hohenzollern dynasty; Vollmer's Mill, Seebach, Baden-Württemberg, Germany
-
Automatic electric Rotary dial telephone
-
A Funke + Huster telephone inside the Idrija Mine, Slovenia
-
-
-
Emergency telephones, on the Paris-Bordeaux railway line, Saint-Saviol station, Vienne, France
-
Android smartphones
-
Mailbox and public telephone in Haßfurt, Germany
-
A police box outside Earl's Court tube station in London, built in 1996 and based on the 1929 Gilbert Mackenzie Trench design
-
A historic telephone booth in Skansen, Stockholm
-
-
Rotary dial telephone, probably from Belgium; the circuit diagram inside is in Dutch and French
-
Apple iPhones
-
-
A Northern Electric telephone, model number N415H, circa 1950 (probably)
-
Rotary dial telephone, probably from Belgium; the circuit diagram inside is in Dutch and French
-
Track-side emergency brake and emergency telephones at the platform of the metro station Aspern Nord, Donaustadt, Vienna, Austria
-
A Bell Canada payphone with digital display
-
A Western Electric candlestick phone from the 1920s
-
Telephone booth box art outside the Tower of London, 2012
-
The AUTOVON was a worldwide American military telephone system that was built starting in 1963.
-
An example of a K6, the most common red telephone box model, photographed in London in 2012
-
Acoustic telephone ad, The Consolidated Telephone Co., Jersey City, New Jersey, 1886
-
Wooden wall telephone with a hand-cranked magneto generator
-
Public telephone, Bucharest, Romania
Topics
| Types | |
|---|---|
| Accessories | |
| Connectivity | |
| Calls | |
| Applications | |
|
Mobile networks, protocols |
| ||||||
|---|---|---|---|---|---|---|---|
| General operation | |||||||
|
Mobile devices |
| ||||||
| Mobile specific software |
| ||||||
| Culture | |||||||
| Environment and health | |||||||
| Law | |||||||
| |
Cellular network standards | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0G radio telephones (1946) | |||||||||
| 1G (1979) |
| ||||||||
| 2G (1991) |
| ||||||||
|
2G transitional (2.5G, 2.75G, 2.9G) |
| ||||||||
|
3G (1998) IMT-2000 (2001) |
| ||||||||
|
3G transitional (3.5G, 3.75G, 3.9G) |
| ||||||||
|
4G (2009) IMT Advanced (2013) |
| ||||||||
|
5G (2018) IMT-2020 (2021) |
| ||||||||
| Related articles | |||||||||
Subcategories
More
|
|
Here are some tasks awaiting attention:
|
Telephones in the news
No recent news
Associated Wikimedia
The following Wikimedia Foundation sister projects provide more on this subject:
-
Commons
Free media repository -
Wikibooks
Free textbooks and manuals -
Wikidata
Free knowledge base -
Wikinews
Free-content news -
Wikiquote
Collection of quotations -
Wikisource
Free-content library -
Wikiversity
Free learning tools -
Wiktionary
Dictionary and thesaurus