The conditional access must be granted specific to the user and device, such as being connected to particular cell tower or present in a pre-specified geographical area. ... MSCs connect to each other and Base Station Subsystems (BSS) that each contains a Base Station Controller (BSC) attached to at least one Base Transceiver Station (BTS), or cell tower. ... This also aids in mobile device handoff as it moves from cell to cell. ... The MCD, BSS and MSC are the components that primarily handle phone calls and text messaging. ... A control message is then transmitted over the forward voice chan...

• Word Count: 5242
• Approx Pages: 21
• Has Bibliography
• Grade Level: Undergraduate