A modem (modulator-demodulator)
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No, most of the landline telephone network and almost the entire mobile phone network use digital technology.
Internet access transmitted over the wires of a local telephone network is typically provided by Digital Subscriber Line (DSL) technology. DSL allows for high-speed internet connections by using existing copper telephone lines, enabling simultaneous voice and data transmission. This technology modulates digital data signals, allowing for faster internet speeds compared to traditional dial-up connections.
Integrated Services Digital Network (Integrated Services Digital Network) An international standard for switched, digital dial-up telephone service for voice and data.
Cellular Telephones is using the Integrated Services Digital Network ISDN while the Cordless Telephone is using the Public Switched Telephone Network PSTN, same with ordinary telephone.
It is the abbreviation for Integrated Services Digital NetworkViper1A wide area network (WAN) oriented data communication service provided by telephone companies JunkCollectorISDN(Integreted Service DIgital Network)is an technology that provides simultanous transmission of data + voice over a single channel or wire. DSL and ADSL modems best describes its application in action. For furtther rfrence yo can go to:- http://en.wikipedia.org/wiki/ISDN. Raj_halcyon
ISDN stands for Integrated Services Digital Network. It is a type of digital telephone network that allows for voice, data, video, and other services to be transmitted simultaneously over a single line.
The National Integrated Service Digital Network, also known as National ISDN, is a standard for how PRI switches are to be implemented. Applications that use National ISDN are said to be more cost-effective.
http://wiki.answers.com/Q/How_is_the_data_and_imformation_transimited_over_public_telephone_network,public switched telephone networks and intergrated service digital networks.
Full form : Integrated Services Digital Networkmeans of transmitting sound and data: a digital telephone network that can transmit both voice and data messages
Digital subscriber line (DSL, originally digital subscriber loop) is a family of technologies that provide internet access by transmitting digital data over the wires of a local telephone network.
PSTN Network (Public Switch Telephone Network)
Devices used to prepare digital data for transmission over the public switched telephone network (PSTN) include modems, which modulate digital signals into analog for transmission and demodulate incoming analog signals back into digital form. Additionally, routers may be employed to manage data traffic and ensure efficient routing over the network. Digital signal processors (DSPs) can also be utilized to optimize signal quality and reduce noise during transmission.