public switched telephone network (pstn)
81Circuit switching — is a methodology of implementing a telecommunications network in which two network nodes establish a dedicated communications channel (circuit) through the network before the nodes may communicate. The circuit guarantees the full bandwidth of the …
82Burglar alarm — Silent alarm redirects here. For the album, see Silent Alarm (album). Burglar (or intrusion), fire and safety alarms are all electronic today. Sensors are connected to a control unit via a low voltage hardwire or narrowband RF signal which is… …
83Lawful interception — (aka wiretapping) is the interception of telecommunications by law enforcement agencies (LEA s) and intelligence services, in accordance with local law and after following due process and receiving proper authorization from competent… …
84Communications protocol — For other senses of this word, see Protocol. A communications protocol is a system of digital message formats and rules for exchanging those messages in or between computing systems and in telecommunications. A protocol may have a formal… …
85Media Gateway Control Protocol (MGCP) — Internet protocol suite Application layer BGP DHCP DNS FTP HTTP …
86Cable modem — Motorola SurfBoard SBV6120E EuroDOCSIS 3.0 cable modem A cable modem is a type of network bridge and modem that provides bi directional data communication via radio frequency channels on a HFC and RFoG infrastructure. Cable modems are primarily… …
87Secure Terminal Equipment — STE redirects here, for other meanings see STE (disambiguation). Secure Terminal Equipment (STE) is the U.S. Government s current (as of 2008), encrypted telephone communications system for wired or landline communications. STE is designed to use …
88videophone — /vid ee oh fohn /, n. a telephone that incorporates both voice and video capabilities. Cf. Picturephone. [1950 55; VIDEO + (TELE)PHONE] * * * ▪ telephone Introduction also called video telephone device that simultaneously transmits and… …
89Broadband Internet access — Broadband Internet access, often shortened to just broadband, is high speed Internet access typically contrasted with dial up access over a modem.Dial up modems are generally only capable of a maximum bitrate of 56 kbit/s (kilobits per second)… …
90Internet fax — uses the internet to receive and send faxes.Traditional faxing involves sending a scanned copy of a document (a facsimile) from one fax machine to another, over the phone network. Internet faxing (or online faxing ) is a general term which can… …
