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Cordless Wall Phone - Types of Cordless Wall Phones

range ghz frequency security

Cordless phones are great conveniences. Unlike standard corded phones, the handsets can be taken off the bases that are attached to the household line, allowing a person to continue activities around the house or outside while still talking on the phone. Wall-mounted cordless phones save space on a table or desk and come with single, dual, or multiple handsets that can be placed in separate rooms, eliminating missed calls.

The three types of cordless wall phones vary greatly in price and in capabilities. Basic analog styles are the least expensive and have a good signal and satisfactory range, but reception deteriorates the farther it is from the base. Analog phones are not very secure from neighborhood scanners, which can pick up the frequency and allow other people to listen in on private conversations. Digital phones cost more than analog, but the signal is stronger with less likelihood of compromised security from scanners and interference from other electronic devices. Digital spread phones have a farther range than the other types and greater clarity in sound. The security is superior because it digitizes the voice and spreads it over several frequencies simultaneously. They are, however, the most expensive.

Cordless wall phones are available with three different frequencies. A 900 MHz is the most common and affordable. It does an adequate job, but the 2.4 GHz has better sound quality and range, although some electronic devices broadcast on this frequency and may interfere with the phone. A 5.8 GHz has 20 times the range that the 900 MHz has, and twice the range of the 2.4 GHz. The sound quality is better and there is little interference from other signals. Security from scanners is better, also. Unfortunately, a higher frequency also uses the battery faster. Dual transmitters compromise on this issue. They transmit from the base to the handset at 5.8 GHz, but the handset only transmits back to the base at 2.4 GHz.

Special features can be included in some cordless wall phones. If it has a built in answering machine, it probably records on a microchip, which allows for multiple mailboxes and recording conversations. Caller ID and Call Waiting are nice features to have, but they usually need to be set up with your phone company. Many phone units allow people to access messages from another phone. Multiple handsets allow calls to be transferred from one handset to another, some phones have speaker phones, and others may have an intercom option. Some cordless wall phones can even be set up for multi-line homes. If the phone gets misplaced, the locator function can help to find it again. Fancier options include voice dialing, speed dialing, redial and hold functions.

Cordless wall phones have so many advantages over corded phones. They are convenient to use around the home, have many features to choose from, and provide a variety of frequency levels that fit anyone’s specific security needs.

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