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Sigma KEE - Telephone

KB Term:

Telephone

A Telephone is a CommunicationDevice that enables LinguisticCommunication between nodes in a TelephoneSystem by converting sound into electrical signals that are then transmitted. When the signals are received, they are converted back into sound.

Relationships
Parents	CommunicationDevice	A CommunicationDevice is a Device which serves at the instrument in a Communication Process by allowing the communicated message to be conveyed between the participants.
	ElectricDevice	A Device that uses Electricity as its primary power source.
	TelephonyDevice	A TelephonyDevice is a CommunicationDevice that, when connected to a TelephoneSystem, functions as an access point allowing end users (Humans or other Agents, such as autonomous/scheduled ComputerPrograms) to send or receive signals via the system. Telephones and FaxMachines are TelephonyDevices. A given Computer may or may not function as a TelephonyDevice, depending on the ComputerPrograms it runs and the ComputerComponents that are part of it.
Children	FixedPhone	An instance of FixedPhone is a Telephone that must be connected to the telephone network via a cord.
	MobileCellPhone	A MobileCellPhone is a Telephone that connects to the telephone network by sending and receiving radio transmissions, rather than via a cord, and so is portable.
	SatellitePhone	A mobile Telephone that primarily communicates through a communication ArtificialSatellite orbiting the PlanetEarth, rather than solely through a set of terrestrial stations.
	TDDPhone	TDDPhone, which stands for Telecommunications Device for the Deaf, describes a Telephone that is designed so that Deaf people can use it