Ntc/360 Week Two Telecommunications

In: Computers and Technology

Submitted By wtmageors
Words 928
Pages 4
Rotary dialing relies on a completely different concept. When using rotary dial, an electrical signal is applied an interrupted a number of times equal to the number the user wishes to dial. For instance, to dial a number 8 a telephone would have to interrupt the electrical signal 8 times. A pause signifies the completion of the first dialed numbered and the system prepares to receive the next number.
Voice and Data Communication Systems
Voice and data communication systems are the backbones of modern business organizations. Without these systems, business would quickly crumble due to competitors’ ability to leverage such systems to communicate changes in the market and other required business information very quickly. If my business had more than one employee and more than one location, then getting information from one point to the other without a voice or data network could potentially take long enough that my company would lose out on profits to my competitors. In short, voice and data communication systems enable businesses to survive in what has now become a world that moves at the speed of light. In this article, I will describe the voice and data communication systems I use to perform my job as an online reseller.
The Telephone System
I pay a monthly service fee to AT&T so that my home telephone is allowed to access the PSTN. The PSTN is a circuit switching network, which means a dedicated circuit is opened for a communication until that communication is closed by either of the involved parties. When I lift the handset, the hook switch inside my telephone closes and connects my telephone to the central switch. Dialing the number I wish to call informs the central switch, which then attempts to connect my call to the number I dialed. If someone answers my telephone call, then the central switch opens a dedicated circuit between our telephones. Speaking…...

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