Plug & Play (PnP): How it works? 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[+44 330 383 8000](tel:+443303838000 "+44 330 383 8000") ![](/images/getstarted-writetous-navbar-int_ZY7MOf.webp) ### Write to us Fill out our request form. Our experts will respond as soon as possible. [Write to us](/gb/request-information "Write to us") ### Plug & Play [Plug & Play: How it works](/gb/get-started/cloud-telephony/lexicon/knowledge-base-detail/plug-play#section-3) [Plug & Play and security](/gb/get-started/cloud-telephony/lexicon/knowledge-base-detail/plug-play#section-4) # Plug & Play Plug & Play, sometimes abbreviated to PnP, is a technology that allows peripheral devices to be connected to a computer and used almost immediately. All the user has to do is plug the device into a free computer port, with no need for manual configuration and no need to install a driver. One of the first companies to introduce this technology was Microsoft. Plug & Play was first available in Windows 95. ### Plug & Play: How it works Before Plug & Play became a standard feature of the most popular operating systems, users had to manually set up expansion cards and peripheral devices in a multi-step process and install suitable drivers for each hardware component. With Plug & Play, the newly connected hardware component creates a unique identification code instead. The computer then uses this code to recognise the [hardware](t3://page?uid=19) and allocate the required computer resources, as well as automatically configuring parameters required for operation and loading the correct drivers. This automated process allows users to connect devices to the USB port of their computer and start working with them straight away. It also enables fast, convenient [zero-touch provisioning](/gb/get-started/cloud-telephony/lexicon/knowledge-base-detail/zero-touch-provisioning) of new hardware –an example of this is [Cloudya, the cloud telephone system from NFON.](/gb/en/products/cloudya) ### Plug & Play and security While it is convenient, the Plug & Play technology can also introduce security risks. In principle, a malicious actor can compromise a computer by simply plugging in hardware – such as a manipulated USB stick –, thus gaining unauthorised access to data in order to manipulate this data or to install malware. This is why business computers often have the Plug & Play feature of their USB ports protected or completely deactivated. NFON takes security very seriously. In January 2020, we introduced a new, patented technology for the secure [auto provisioning of end devices](t3://page?uid=19). The NFON platform now requires two-factor authentication (2FA) for newly connected hardware devices. When commissioning new phones, users must enter a one-time, six-digit Phone Authentication PIN (PAP). This prevents cyber attacks and increases the level of security for all users. ### Plug & Play (PnP) ![](https://a.storyblok.com/f/290788/169bcb0dfe/plug-and-play_web_01.png) ### Related Articles ### Voice over Internet Protocol (VoIP) **What is VoIP?** The **Voice over Internet Protocol,** also called IP telephony, is a method of communication for making calls over a broadband Internet connection as an alternative to regular calls made over an analogue phone using the [PSTN](/gb/get-started/cloud-telephony/lexicon/knowledge-base-detail/pstn). These VoIP calls can happen entirely over the Internet but where required, gateways also link to the PSTN. This means that VoIP users can still connect to anyone with a telephone number including local, mobile, and international numbers. VoIP services can be accessed from a computer with a so-called [softphone,](/gb/get-started/cloud-telephony/lexicon/knowledge-base-detail/softphones) from an IP phone, from a smartphone or from a conventional landline phone that is connected to a VoIP adapter. [Voice over Internet Protocol (VoIP)](/gb/get-started/cloud-telephony/lexicon/knowledge-base-detail/voice-over-ip) ### Multiphone function The term ‘multiphone function’ is often used in the context of modern [cloud-based telephone systems](https://web-production.nfon.com/gb/products/cloudya). Thanks to the multiphone function, it is possible to increase the number of telephones or other communication devices that can be operated in parallel with an extension. Furthermore, the term ‘multiphone function’ also appears in the description of certain telephones, where it refers to the setting up of various different functions and applications on a single device. This glossary entry refers to the multiphone function of cloud-based telephone systems. 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