Physical Newtorking: Telecommunications Essay
1. Describe a local land line phone system based on the following Landline Telephone Components.
a. Local Loop - consists of twisted pair copper cables with a maximum length of three miles. It is a physical link from the customer to the service provider’s network; the local loop terminates in a circuit switch housed in a local exchange carrier or telephone exchange.
b. Central Office - a building used to house the inside plant equipment including support for up to 20 local exchanges, each serving a certain geographical exchange area. Bell Systems established a uniform system of identifying each telephone exchange with a three digit code thus inventing the area code.
c. Local Exchanges - serves a group of …show more content…
d. Telecommunication Services
i. RBOCs - (regional Bell operating company) which is comprised of seven small companies owned by AT&T. AT&T has merged four out of the original seven by 2006. These service providers provide most of the fixed line, wireless, and data services in America. The key advantage of RBOC as opposed to MSO companies is they offer mobile phone wireless service. ii. Unbundling - Basically, AT&T owned everything, they were still a monopoly even after splitting