Application And Technical Details Involved With Performing A Telephone Call From A Desktop Pc

779 Words Aug 19th, 2015 4 Pages
For part B of assignment 1, i shall discuss the process and technical details involved with performing a telephone call from a Desktop Pc, to a telephone. I shall run through the process, using Alice (digital Device owner) and Bob (telephone) to describe the process.
Before we can begin the call, the pc requires both a microphone and headset/speakers to be able to run any call, and a pc with a fast enough connection to the internet. In this instance, the call will be running as a two way communication known as duplex, which allows the transmission and receiving of information from two connected parties. This means that both connected callers can talk via their microphones and listen from the speaker simultaneously. The best way to describe it is that there are two cables on the connection both are connected to one another and transmit data on their own cable.
There is also a similar system called Half-duplex. The system provides communication in both directions, but only one direction at a time. Once a party begins receiving a signal, it must wait for the transmitter to stop transmitting, before it can reply.
Once the connection has been formed, Bob will speak into the microphone, his voice will be picked up by the microphone, and the computer will convert his voice, which is picked up as analog waves. These analog waves will be converted into digital values, the overall process of conversion is run through an Analog to Digital converter. An analog to digital converter is…

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