The wireless medium of telecommunications has experienced a mind-boggling growth rate for the last several years even if compared with the overall very fast pace of the telecommunications industry. Estimators predict that mobile devices will hit the 1 billion mark by 2003. By 2002 it is predicted that the worldwide number of wireless last-mile lines will hit the level of 339 million.
          The main factor behind this tremendous growth has been wireless medium’s ability to satisfy one “any” component out of the three that comprise the ultimate goal of telecommunications: “Any information, any time, any place”.
          In today’s world wireless communication is no longer just about cell phones, instead it is the direction that telecommunications seems to be heading to -provide all possible ways to keep information place-independent to a lesser, as in the Wireless Local Loop (WLL) case, or a greater extent as exemplified by cellular technologies.
          To better understand the complexity of wireless communication, two major areas should be considered: the area of technical innovations, driving the medium capabilities, and the area of wireless business applications. The business marketplace has been affected significantly by the latest deregulation in the US and, on the opposite side, by European Community governmental programs.  

          Technology magicians have concentrated their efforts on two major areas: mobile communication and telephony, mostly known for its cellular phones networks, and wireless communication as a substitute of land-lines not only for voice but also for data, video, audio transmission. The later application has been referred to as Wireless Local Loop (WLL), wireless fiber, or wireless broadband access.
         Perhaps, the most astounding results have been achieved in the cellular technology area. The 3G (third generation) standard promises to increase data speed transmission from currently common 9.6/14.4Kbps to 2Mbps. With this speed, it will be possible not only to surf the Internet, but also run such applications as streaming video- and audio using a wireless device. The 3G standard has become possible with commercializing of the CDMA standard, developed by Qualcomm company. As the consequence, 70% of cellular phones will have Internet capability within the next four years.
         In the area of WLL, there is no common standard or at least a standard towards which companies have agreed to comply in the future (such as 3G in cellular for cellular networks). The leader here, surprisingly, is a “down-to-earth”, in the sense of producing equipment for wireline communication, company – Cisco. Its recent breakthrough in the microwave communication will allow for a broadband wireless substitute of a landline at very high speeds – up to 6Mbps (vs. around 1.5Mbps provided by DSL, cable modem or a T-1 line).
         Recently, a new technology that promises to revolutionize the very notion of wireless data has been developed. This technology, called Bluetooth, enables wireless connection of all possible electronic devices currently in use: PCs, laptops, printers, scanners, wireless phones, PDAs, audio and video players, digital cameras, etc.