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The Glossary of

The glossary of is a free tool created by the team of experts to allow users to find all definitions and meanings of the most important and challenging terms in the world of Swiss telecommunications. By understanding the terms on this page, you will be able to navigate even better among mobile, internet, TV subscriptions, and all other offers compared on

Definition 5G 

In the word 5G, the letter "G" stands for Generation, and the number 5 indicates that it is the fifth-generation mobile technology. 5G represents a set of innovative technologies among mobile networks that allow for broader coverage, with a wider bandwidth, and data transmission speeds similar to those of a fiber optic connection.

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Definition APN

APN stands for Access Point Name. Translated from English, APN means the internet access point of your mobile operator. Sometimes, you may need to set the APN to use your mobile operator when changing subscriptions to continue using the internet on your mobile. 

Definition ADSL

ADSL, or Asymmetric Digital Subscriber Line, means Asymmetric Digital Subscription Line. ADSL is a type of connection whose connection to the router is mainly based on copper to pass internet signals.

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Definition DNS

DNS stands for Domain Name Server. The DNS is the server that activates every time we connect to the internet via a fixed or mobile line. Its function is to translate URLs (Uniform Resource Locator) into IP addresses and vice versa to allow users to browse by recognizing the alphanumeric domain of the website instead of a vector of numbers.

Definition DTT

DTT means Digital Terrestrial Television, and its translation is Digital Terrestrial Television. Digital Terrestrial Television (DTT) is a television transmission technology that sends digital TV signals through terrestrial radio waves.

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Definition eSIM  

eSIM means embedded Subscriber Identity Module. eSIMs are virtual SIM cards, activatable on smartphones and other compatible devices, which are produced directly with a SIM card attached to the internal circuits of the device.

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Definition FTTH

FTTH stands for Fiber To The Home and is more commonly called fiber optic. Today, FTTH is the most performant type of connection on the market due to much faster data transmission and a much wider and stable bandwidth. Not to be confused with FTTC or Fiber To The Cabinet, which, while still fiber optic, indicates that the fiber only reaches the nearest roadside cabinet, and from there, copper connections extend to inside the house.

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Definition GPS

GPS, or Global Positioning System, is the system commonly used in mobile devices to determine the location of an object on Earth by detecting signals from orbiting satellites. The GPS system is particularly useful for GPS trackers, devices designed to track objects such as cars, bicycles, or keychains.

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Definition ICCID

CCID stands for Integrated Circuit Card ID. The ICCID code is used to precisely and uniquely identify the phone's SIM. This code is particularly useful when requesting mobile number portability during a subscription change.

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Definition IP

Internet Protocol (IP) is a communication protocol used to manage the routing of data across computer networks. In the field of telecommunications and information technology, IP addresses are unique identifiers assigned to devices connected to the global internet network.

Definition IoT

IoT stands for Internet of Things, referring to a network of physically connected devices to each other and the internet. This network can collect, process, and send data as well as perform actions based on certain conditions.

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Definition IPTV

IPTV stands for Internet Protocol Television. Internet Protocol Television (IPTV) is a technology for transmitting television programs and video on demand over the internet and its communication protocol.

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Definition ISP

ISP is the acronym for Internet Service Provider. An Internet Service Provider is a provider of internet services that offers access to the network to its subscribers. ISPs manage various technologies to allow users to browse the internet and access all online services.

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Definition LTE (4G LTE)

LTE stands for Long-Term Evolution. LTE technology operates in the mobile communication world and is often referred to as 4G. LTE technology allows for fast data transmission over the internet on mobile devices such as smartphones, tablets, and modems.

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Definition Mbps

Mbps stands for Megabit per second. Mbps is the unit of measurement for data transmission speed, indicating the number of megabits of data that can be transmitted or received in one second through your mobile or fixed internet connection. The higher the Mbps, the faster the data transmission speed. Sometimes, Mbps can also be indicated as Mb/s.

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Definition MNP

MNP stands for Mobile Number Portability. Mobile number portability is a service that allows users to keep their mobile number when changing mobile phone operators.

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Definition MPN

MPN stands for Mobile Private Network. MPNs are private mobile networks usually designed in industrial contexts. Mobile private networks ensure data confidentiality and extensive coverage of the entire area of interest. They are usually installed in special contexts such as hospitals, military bases, or process plants. MPNs use 5G antennas to allow for higher connection bandwidth and exponentially more connected devices.

Definition MVNO

MVNO is the acronym indicating a Mobile Virtual Network Operator. A Mobile Virtual Network Operator (MVNO) is a provider of mobile phone services that does not own its own network infrastructure but leases network capacity from physical network operators (in Switzerland, Salt, Swisscom, and Sunrise).

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Definition NATEL

NATEL is a term of Swiss origin that abbreviated the term "Nationales AutoTELefon." This was a Swiss mobile phone service introduced in the 1970s. Today, NATEL is used as a synonym for mobile telephony and is used as the name of some products or services on the market.

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Definition Roaming

Roaming is the ability to use your mobile device, smartphone, or tablet abroad to connect to foreign mobile networks with your phone number. This service must be activated when leaving the national coverage area of your mobile operator to maintain connectivity during travels.

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Definition SD-WAN

SD-WAN stands for Software-Defined Wide Area Network. SD-WAN technology optimizes the flow of data traffic across business networks using algorithms and artificial intelligence, combining mobile connections with fixed-line connections.

Definition SIM

SIM stands for Subscriber Identity Module. SIM cards are small electronic cards compatible with mobile devices, such as mobile phones or tablets. The SIM contains some information and allows the device to connect to the mobile network of the phone operator to use its mobile package.

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Definition TOP-UP

Using the term Top-up refers to the process of recharging or reloading prepaid credit associated with mobile telephony services. Through this action, you can use your credit to make calls, send messages, or connect to the internet.

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Definition Tunneling

Tunneling is a technique that allows data to be sent through a different transport network than the one currently connected. Through a tunnel, the original data packet is sent to a network with a different IP address. Usually, this action is combined with a VPN to ensure data anonymity and security.

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Definition VoIP

VoIP stands for Voice over Internet Protocol. Voice over Internet Protocol (VoIP) is a technology that allows voice calls over the internet using the IP data transmission protocol. With this technology, sounds are converted into digital data, transmitted over the internet, and then reconverted by the receiving device.

Definition WLAN

WLAN stands for Wireless Local Area Network. WLAN or wireless local network allows devices to connect to each other and to an internet access network without the use of physical cables. In our daily lives, WLANs use technologies like Wi-Fi to transmit data through radio waves to and from modem routers.

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Definition Wifi

Wi-Fi is the abbreviation for Wireless Fidelity. Wi-Fi is a wireless communication technology that allows the connection of devices to a local network or the internet without the use of physical cables. This technology is widely used in homes, public places, and businesses.

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If you want to deepen your knowledge further, we invite you to read the guides. In this section, you will find articles, guides, and much more that will allow you to better understand the Swiss telecommunications sector.

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