Listed below are the six basic categories and a description of each:

5.8 GHz/5.8 GHz digital spread spectrum

5.8 GHz is the latest frequency adopted by the FCC. This frequency offers improved reception, clarity, range, and security over 2.4 GHz. It also incorporates the channel-scanning of spread spectrum to give you the best reception available in a cordless phone.

2.4 GHz/900 MHz digital spread spectrum cordless

This technology separates your signal into two different frequencies making it virtually interference free. But first, please know that despite what you may read elsewhere, even the best cordless products can’t deliver the same sound quality that the finest corded products can.

Spread spectrum cordless

For superior clarity and range in a cordless phone, opt for a 900 MHz spread spectrum phone. They "spread" signals over several frequencies rather than locking onto one. Plus they continually scan for the clearest channels available.

If you have a very large office, or if you’d like to take advantage of unprecedented digital clarity, choose a spread spectrum phone.

900 MHz digital cordless

If you don’t really need a top-of-the-line spread spectrum phone, but still want the benefits of 900 MHz, consider a digital 900 MHz cordless phone. Originally reserved for the military, the 900 MHz frequency has become available for civilian use.

This higher frequency coupled with digital technology results in a stronger, clearer signal than 46/49 MHz analog cordless phones offer, and a range that is 2 to 3 times farther in many cases.

900 MHz analog cordless

If you’d like to take advantage of the 900 MHz frequency, but you’d also like to save a little money, think about an analog 900 MHz cordless. It doesn’t have the digital signal enhancements (analog sound waves are shorter and more easily distorted), but in a small office, it should give you very good cordless reception. Certainly better than a conventional 46/49 MHz analog cordless.

46/49 MHz cordless

46/49 MHz phones have been standard on the market for many years. These are good phones for home use or a small, quiet office.