International dialling prefix. Contents. An international dialling prefix is a telephone dialling code used to dial out of a country when making an international call. It's also called international access code, International Direct Dialling (IDD) code, exit code, international call prefix, etc.
Routers are small electronic devices that join multiple computer networks together via either wired or wireless connections. In technical terms, a router is a Layer 3 network gateway device, meaning that it connects two or more networks and that the router operates at the network layer of the OSI model. Routers contain a processor (CPU), several kinds of digital memory, and input-output (I/O) interfaces.
A USB router is a device used for sharing a broadband Internet connection among multiple computers. It is primarily designed for use with cable services where the modem does not have an Ethernet connection. It is also possible to use a USB router for mobile broadband devices.