Q

QOS

see Quality Of Service

QSIG

See Q Signalling

Quality Of Service

Quality Of Service (QOS) is a feature configured on a device that can prioritise data traffic dependent on its use. For example, VoIP calls can be given a higher priority over web browsing/e-mail traffic.

R

Range Holder

A Range Holder (RH) is the communication provider that has been allocated a range of telephone numbers by OFCOM.

RDP

see Remote Desktop Protocol

Remote Desktop Protocol

Remote Desktop Protocol (RDP) is the ability for a user to connect to another computer utilising a graphical interface and a network connection.

RH

see Range Holder

Roaming

Ability of a mobile user to access cellular services while away from the home network. This includes automated roaming between GSM networks, SIM-based roaming, where a user switches the SIM card into a mobile phone from a different network, or roaming across technologies. Roaming can take place within one country and across national boundaries. In a WLAN context, roaming occurs when a mobile device disassociates from one access point and then re-associates with a new access point. When roaming abroad, high charges can occur. 

Router

The router is a piece of hardware that allows two or more networks to be connected so that data can be transferred between them. The router sees and directs the data to the correct location. They are the crucial devices that let messages flow between networks.  

S

SDSL

Symmetric Digital Subscriber Line

Server

This is a host computer on a network that stores information, such as websites, and responds to requests for information. A server responds to requests across a computer network to provide, or help to provide, a network service. Servers can be run on a dedicated computer, which is also often referred to as “the server”, but many networked computers are capable of hosting servers.  

Service Set Identifier

A Service Set Identifier (SSID) is a unique name which allows you to differentiate between other networks when connecting to a device over WiFi.

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