Because you use different modes to access it!
a modem that has extra functions such as automatic answering and dialing is called intelligent modem
internal modem
DTEhttp://www.flashcardmachine.com/hardware.html~tekno
The device you are referring to is called a Modem.
Asymmetric Digital Subscriber Line (ADSL) is a form of DSL, a data communications technology that enables faster data transmission than a conventional modem can provide. A modem which can do such a job is called an ADSL modem.
RJ11 Cable
It's called a Modem which stands for Modulator/Demodulator. Modems take digital signals from the sending computer and convert these signals into Analog so they can be transmitted over wire (phone or cable). On the receiving computer, the Analog signals are then converted back to Digital in order for the computer to decipher the information.
A modem allows data to be transferred over a telephone line. It is a combination of MOdulate - DEModulate. One device modulates a digital signal from the computer into an analog signal for the telephone line, then the other device demodulates the signal back into digital for the receiving computer.
Modem.
You will need to buy a new modem that is designed for your DSL modem. This is due to the fact that the modem is designed to use the dsl signal opposed to the cable modem.
It is called an Ethernet cable.
a computer "voice" is a digital aer called modem,