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.
Summary: 1. A router is used to connect two or more networks while a modem is used to connect to a phone line. 2. A router only connects to RJ45 connectors while modems need an RJ45 and an RJ11 for the phone line. 3. A router provides security measures to protect your network but a modem does not. 4.