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What devices are used to prepare digital data for transmission over the public switched 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.
What else can I help you with?
How we are using a Public switched telephone networks to carry all your digital contents?
how we use Public switched telephone networks to carry all our digital contents
Describe the major components of a Public Switched Telephone Network?
Regional central offices connecting central offices from different regions Analog and digital connections
What is a set of standards for digital transmission of data over standard copper telephone lines?
The set of standards for digital transmission of data over standard copper telephone lines is ISDN
How is the data and information transimited over public telephone network?
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.
In computer language what is meant by ISDN?
Integrated Services Digital Network (Integrated Services Digital Network) An international standard for switched, digital dial-up telephone service for voice and data.
What Following statements accurately describes how a modem works?
A modem (modulator-demodulator) converts digital data from a computer into analog signals for transmission over telephone lines or other communication mediums. It modulates digital signals into analog form for sending and demodulates incoming analog signals back into digital data for the computer. This process enables devices to communicate over various types of networks, such as DSL, cable, or fiber-optic connections. Essentially, the modem serves as a bridge between digital devices and the analog transmission infrastructure.
What is the difference between cellular telephones and cordless telephones?
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.
What is the type of telephone line that provides connection with transmission speeds in the range of 56kbps or 45 mbps or more?
56 kbps is ISDN (Integrated Services Digital Network), which uses a switched circuit to connect from point to point. 45 Mbps is probably DS3.
What is a digital telephone?
it is a telephone which is digital and it has a computer inside it
What converts analogue signals to digital signals for transmission over telephone lines?
Actually you have this backwards, the telephone lines can only carry analogue signals (voice band, 20Hz to 3KHz) not digital signals.The device that converts digital signals to analogue signals for transmission over telephone lines is called a phone MoDem(this stands for phone modulator demodulator). At the opposite end of the line it of course converts the telephone analogue signals back to digital signals.
What is ISDN and What is it's necessity?
Integrated service Digital network. ISDN is a circuit-switched telephone network system, that also provides access to packet switched networks, designed to allow digital transmission of voice and data over ordinary telephone copper wires, resulting in better voice quality than an analog phone. It offers circuit-switched connections (for either voice or data), and packet-switched connections (for data), in increments of 64 kbit/s. Another major market application is Internet access, where ISDN typically provides a maximum of 128 kbit/s in both upstream and downstream directions (which can be considered to be broadband speed, since it exceeds the narrowband speeds of standard analog 56k telephone lines). ISDN B-channels can be bonded to achieve a greater data rate, typically 3 or 4 BRIs (6 to 8 64 kbit/s channels) are bonded.
What does the pstn consist of?
Public Switched Telephone Service encompasses all forms of telecommunications that need to be switched from the calling device, to the receiving device. This includes analogue, Digital, cellular and VOIP, where part or all of the call transmission has to pass through a Public Switch. Only VOIP has the ability of circumventing the need to use a central exchange, but with the majority of telephone connections being NON-VOIP, it will be some time before VOIP supercedes normal telephony. Please note that I have listed the technologies in the correct chronological sequence.
