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BuyingTips - 900MHZ Phone


What is a 900 MHz Phone?

Frequency rate (which is measured in million hertz or MHz) is the main feature in any cordless-phone. The higher the frequency, the better. A 900 MHz phone has a longer range as compared to a conventional 49 MHz phone. Unlike 49MHz phones, they're not prone to interference from fluorescent lights, computers, babymonitors and electrical devices. Also, their signals are not easily blocked by walls or floors. The new 2.3 GHz (giga hertz), the higher frequency phones than 900 MHz phones, are now becoming available.

Types of 900 MHz Phones:

Analog 900 MHz Phones: This phone is same as the traditional cordless phone, except that it operates in the 900 MHz bandwidth. This phone has four times more the range of conventional phones. As a result you get better quality sound and can have more channels. 900Mhz Analog Phones use a higher, less crowded frequency range to communicate between the base and the handset which often results in greater call clarity. Since these phones work in the same range as 49 MHz conventional phones they are more prone to eavesdropping, but are low priced and offer better clarity in crowded areas.

Digital 900 MHz Phones:These phones digitize their transmissions between the base unit and the handset. Hence they are less susceptible to interference in transmission, have more clarity and are more secure. Some models of Digital phones come in greater range than analog phones.

Digital Spread Spectrum 900 MHz Phones:Spread spectrum technology is radio technology, and combined with digital technology it gives noise free, error free transmission in the clearest of sound with highest security. It has upto 7 times the range of conventional phones. A spread spectrum transmission is a thousand times wider than a regular cordless phone signal. With all the extra space there's more data being transmitted, which increases the sound quality and reduces interference. Since scanners and other phones use a much narrower bandwidth, they cannot make sense of the spread spectrum signal so the calls are much more secure. Some of these phones have as much as double the range of analog phones.

The following features will help you decide the right 900 MHz phone:

Caller ID: This service is provided by your local phone company. By subscribing to Caller ID you can view the number of the incoming phone calls on your answering machine handset. Caller ID comes on Base as well as Handset also.

Caller ID Memory: This feature allows some phones to store into memory a history of numbers that have called you. This way you can easily return calls from people as well as easily store their numbers into your phone's Speed Dial.

Multi Line Capability: If you have more than one phone line at your home, the same phone can be used to make or receive different calls. The advantage of having number of lines is that you can use the second line for fax machine or modem. In small and home run businesses dual line phones can be used for conference calls and transfering call between the lines.

Speakerphone: It gives you the freedom to talk while doing something else.It gives you the choice of talking and listening from the base station as well as the handset.This great feature comes really handy in case you can't locate your handset.

Channels: The number of channels a phone uses may vary from 10 to 40. The more channels a phone uses, the lesser is chance of interference from nearby hones and other remote devices.

Battery Back-up: In case of power failure a battery back up allows the phone to keep functioning. Nickel cadmium (NiCad) batteries are common, but nickel metal hydride (NiMH) batteries have a longer life. Batteries can be charged and used again and again. Some units come with spare Battery and a spare battery charger.

Backlit: In such phones keypads are either lit or glow in the dark for easy dialing in low light situations.

Base Keypad: Some phones with a built in speakerphone lets you call directly from your base without the handset.

Intercom: This facility lets someone at the base station talk to the person with the handset.

Find the right place to put the base of cordless phone. Place it in an open, high position to get/receive the best reception.


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