The main part of Network Subsystem is the Mobile services Switching Center, which performs the switching of calls between the cell phone and other fixed or cell phone network users, as well as management of mobile services, such as authentication. ... By inserting the SIM card into another GSM cellular phone, the user is able to receive calls at that phone, make calls from that phone, or receive other services they are subscribed to. ... So each cell can be next to another cell which does not have the same frequency range, effectively stopping interference between cells and allowing frequen...

• Word Count: 1669
• Approx Pages: 7

"Cell Phone Tracking Raises Privacy Issues", it talks about how people are looking into making cell phone companies that provide services able to know where their customers are at all the time. ... What if the companies take advantage of it and use the information for other uses? ... The Triflex turns your cell phone into a speakerphone. ... In just one year the number of accidents relating to cell phone use increased in Oklahoma by 26.5 %. ... Until we have more safety features given to us that go along with cell phones, we shouldn't mix the two. ...

• Word Count: 1824
• Approx Pages: 7
• Grade Level: High School