One of the key divisions is by level of control, which distinguishes prescription drugs (those that a pharmacist dispenses only on the order of a physician, physician assistant, or qualified nurse) from over-the-counter drugs (those that consumers can order for themselves).
What is AWS? AWS, which stands for Advanced Wireless Services, generally refers to the 1700/2100MHz frequency band pairing in the U.S. that will be used for T-Mobile USA's 3G UMTS network. Unlike typical spectrum licenses sold by the U.S. government, such as the 1900MHz PCS spectrum bands, the AWS bands use different frequency ranges for cell towers than they do for handsets. The U.S. government has indicated that it intends to offer other paired AWS bands in the future, but none are currently in use. Also known as: Advanced Wireless Services See Also: 3G, UMTS
AWS-1, often incorrectly stated as 1700/2100, is a wireless telecommunications spectrum band used for mobile voice and data services, video, and messaging. AWS-1 is used in the United States, Argentina, Canada, Colombia, Mexico, Chile, Paraguay, Peru and Uruguay.It replaces some of the spectrum formerly allocated to Multipoint Multichannel Distribution Service (MMDS), sometimes referred to as Wireless Cable, that existed from 2150 to 2162 MHz.alifax-based EastLink obtained licenses in eastern Canada, with a small amount of spectrum bought in Ontario and Alberta, and is currently building up infrastructure to launch mobile phone and data services in Nova Scotia and PEI in 2012.