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Category: Computers & Technology
There are three basic types of cordless phones, and they are determined by frequency. There are also a scad of features that a person can choose from, and that determines the price as well as the frequency.
The older technology involves using phones that use the 46/49 mHz frequency range. These phones are okay if you have a small apartment. They are not okay if you want to get any serious distance from the phone. They are also quite susceptible to interference when you are near a blow dryer, during a thunderstorm, or sitting next to your computer monitor.
The newer technology is the 900 mHz models. These have more range, though I wouldn't trust them to much more than a big house. They are less likely to be victim to interference, but they still have some problems that way.
The latest technology is 2.5 gHz phones. These phones do have a range over a thousand feet reliably. Go over to the neighbor's house and take your phone with you -- no problem.
If you are seeking an industrial solution, there are phones out there that are cordless, and have a phenomenal range. Remember that this is an industrial solution, and is suitable for factory settings with horrible interference and no restrictions on installation. I sold a system (when I was in this business) that had an antenna go up in the ceiling of the factory. These phones had a tested range of over 5 miles through open space. Cell phones didn't work in this environment, but these phones did work. They also cost (with installtion) about a $1,000.00. For this application, they were worth it, and they bought 14 phones.
Some of the features you would want on any of these phones would include:
FLASH - this lets you hit the switch hook while on the phone. This is used for call waiting and other calling features.
INTERRCOM - if you don't live alone, this may be the way another person in the house finds out where you are.
PAGE - If you misplace the handset (or want to use the intercome function), use the page function. The phone should beep until you find the handset.
BASE STATION SPEAKER PHONE - When I'm in my kitchen working, I turn on the speakerphone. That way I can talk to people without having to have the phone cradled under my ear. I also don't have to go find it.
MULTIPLE LINE PHONES AND CONFERENCE - Lets you talk to two different people without having to use the local phone company to do it. Only works if you have multiple lines.
HOLD / MUTE - Permits you to not allow the distant caller from hearing what's happening on at your end of the phone. Hold lets you actually hang up the phone so you can go pick up an extension. Very handy when the batteries are dying or you're barely in range.
BATTERIES: The best to worst batteries are Lithium-Ion (or LI-Ion), Nickel Metal Hydride, and Nickel Cadnium. Read the directions before you plug in your phone, as some phones need to be charged for many hours before first use.
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Submitted By
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Gary Rimar |
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Professional Musician |
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