red competitors for cellular mobile networks. We now look at the most important applica- tions of cordless telephones. 5.4.1.1 Residential Use The only advantage of cordless telephones over fixed telephones in ordinary residential use is a wireless handset that allows some mobility. The BS of a cordless telephone is connected to the fixed telephone socket and only one handset for each base station is typically in use (Figure 5.5). The BS unit contains a battery charger for the handset. Many systems in use are still ana- log first generation cordless phones (CT1). Residential use Telepoint or wireless local loop, WLL Cordless corporate network Figure 5.5 Cordless telephones and their applications. Introduction to Telecommunications Network Engineering 5.4.1.2 Telepoint and WLL Digital second generation cordless telephone technology (CT2) was developed for so-called "telepoint" use in addition to residential markets and offices. Tele- point was a service in which BSs were installed in key locations in a city such as railway stations and airports. A user of this service could take his or her digital cordless telephone from home or office (or rent a cordless telephone) and make a call outside via the telepoint BS. Subscribers were usually not able to receive a call. This service was not successful and most telecommunications network operators have abandoned it. The main reason for this was rapid expansion of cellular mobile service, which allows much better service and mobility. The latest digital cordless technologies, such as Digital European Tele- communications (DECT), are also used in some areas to provide WLL service. With DECT technology a new operator that does not have its own cable net- work can provide telephone service. The WLL applications were seen to be important to generate competition in the area of traditional fixed telephone subscriber service provision. With the help of cordless technology, a new net- work operator can efficiently provide a service that is better, in terms of mobil- ity, than the 