Glossary
Comprehensive glossary of mobile industry terminology
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Enables you to receive text message from anyone. Virtual SMS makes it possible to send SMS over the internet without having to use a physical phone.
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Visitor Location Register (VLR) is a database which stores information about mobile phones that have recently joined a particular area of a mobile operator’s network. It plays a vital role in keeping track of roamed mobile phone subscribers and co-ordinates with the HLR to determine whether the mobile is a permanent subscriber or a temporary one. Whenever a Mobile Switch Center (MSC) detects a new mobile in its network, in addition to creating a new record in the VLR, it also updates the HLR of the mobile subscriber, apprising it of the new location of that mobile (the MSC address). The MSC address received during an HLR lookup for a particular mobile number is useful for identifying numbers roaming in another country. The foreign network that the number is logged onto can also be identified using this data.
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Voice over Internet Protocol (VoIP) is a technology used for the delivery of voice communications (that is, talking) over the internet.
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A Virtual Private Network extends a private network across a public network and enables users to send and receive data across shared or public networks as if their computing devices were directly connected to the private network.
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Very Small Aperture Terminal (VSAT) is a satellite communication technology using small dish antennas for narrowband and broadband.
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Virtual Subscription Database. This is used by Operators to stop SMS spam (the end users have to be subscribed before messages can be sent to them).
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Wireless Application Protocol - This is a secure specification that allows users to access information instantly via handheld wireless devices such as mobile phones, pagers, two-way radios, smartphones and communicators.
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Webhooks are custom callbacks (automated messages) sent from a web page or app when they a triggered by an event, such as, receiving a phone call or an incoming SMS, and provide a method for augmenting or altering the behaviour of the web page or app. They contain a message or payload and are sent to a unique URL, essentially the app's phone number or address. Callbacks may be maintained, modified, and managed by third-party users and developers who may not necessarily be affiliated with the originating website or application.
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Web Real Time Communications (WebRTC) is an open-source project that provides browsers and mobile applications with Real Time Communications (RTC) capabilities via simple APIs.
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Wireless Markup Language - This is a markup language developed specifically for wireless applications. WML is based on XML.
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Extensible Markup Language - This is a standard for creating markup languages which describe the structure of data. It is not a fixed set of elements like HTML, but rather, it is like SGML (Standard Generalized Markup Language) in that it is a meta-language, or a language for describing languages. XML enables authors to define their own tags. XML is a formal specification of the World Wide Web Consortium.
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Zero-Trust API Platform   More about ZAP.
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If a message is delivered directly by the Sinch SMSC then it is a zero-hop connection.
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  For Sinch, Zero-Trust is in reference to our API platform, or Zero-Trust API Platform (ZAP).   The "Zero-Trust" part of ZAP comes from   zero trust security models. It refers to the fact that no data should be implicitly trusted and should always be authorized on behalf of some authenticated identity.
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Communication protocol for personal area networking.
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Communication protocol providing short range, low latency data transfer at rates and power consumptions lower than Wi-Fi. Used primarily for home automation.
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