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Cordless Telephones Extended By New Technology
By: Paul Wise

Before the cell phone but way after smoke signals and Watson, there was the cordless telephone, a landline with a cord-free handset. Cordless phone communications are established over radio waves between the phone's base station and the handset. Communications between the base station and handset is typically limited, with complete signal loss between the different floors of a house not unusual (or even from one end of an apartment to the other!). The base station itself is connected to a fixed telephone line like standard telephones. The base station is powered by mains electricity - that is to say, by electricity through a wall outlet. It is this base station, which is absolutely necessary, that continues to differentiate cordless phones from cell phones, despite the former's much increased technological sophistication, such as cell handover technology, which allows for cell phone-like features such as data transfer and even international roaming.

But in the early days when the cordless phone first appeared on the market (it had been, incidentally, first proposed almost two decades earlier, in the sixties), the devices were unreliable and very expensive. Not only was the operational range extremely limited and sound quality abysmal, but there was virtually no security or privacy because signals could be easily intercepted by other cordless phones in the vicinity due to the lack of channels available! It took just about a decade and a half for cordless telephones to at last gain the chance of being a common household item, thanks to the availability of greater frequency ranges, up to 900 megahertz, along with the introduction of DSS technology at year later, in 1995. These two technological innovations took care of eavesdropping concerns and cordless telephones were then free to take off as popular products. Though cell phones are everywhere and clearly going to be with us well into the future, many people still retain landlines in their homes for many reasons, and cordless telephones remain a viable product, with new models introduced fairly often.

When choosing a cordless phone, the first thing to keep in mind is security: these telephones are in essence little radio transmitters and thus open to being eavesdropped, though these days a high level of technical sophistical is required to do so successfully. In this regard, be sure to choose DSS technology, at the 2.4 gigahertz frequency at a minimum (less is not as secure while more shortens battery life).

This brings us to the only other major issue: battery life. Avoid nickel-cadium if possible; they are subject to a memory effect whereby such batteries must be totally drained before recharging. Other than these two matters, the rest of a cordless phone's features are entirely up to personal preference.

Article Source: http://www.excitingdestiny.com/articles

Article written by Paul Wise after extensive research on Cordless Telephones. If you need a DECT, 5.8 GHz, or 2.4 GHz Cordless Phone, visit e-WorldDirect.com.

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