Types of Cordless Phone with its Frequency Bands
October 23, 2007
Cordless telephones are electronic devices with radio frequency technology. It avoids interference problems and eavesdropping. The cordless phone is available with frequency bands, such as 1.7 MHz, 46 MHz to 47 MHz, 902 MHz to 928 MHz, 2.7 GHz.
In earlier days, analogue cordless phones were used and they used 1.7 MHz frequency band, above the AM broadcast band. It is susceptible to interference from luminous lights.
Bands of 46 MHz to 47 MHz has huge installed base of analogue models. Some of the cordless phones use audio inversion for scrambling. This model chains low-powered walkie-talkies and baby monitors that share the same frequency bands. Unscrambled models are very easily heard by virtually any radio scanner. It provides better audio frequencies with radio scanner.
Models with 902 MHz to 928 MHz band is well known for its use of shorter, non-telescoping antennas. The models cannot be heard by radio scanner with Digital Spread Spectrum (DSS). And the rest analogue models are easy to pick up as it is less crowed than 46 to 47 MHz band. In the technology of cordless telephone you can enjoy 80 channels. A model with 2.7 GHz is the latest cordless phone. To ensure privacy it is available with radio scanner to cover this band and digital spread spectrum with analogue.
When you go to shop for cordless phone, prefer to buy a new cordless phone with 900 MHz or 2.7 GHz band technology. 5.8 GHz digital spread spectrum adopted by FCC which offers improved reception, clarity, range and security over 2.4 GHz. 5.8 GHz frequency bands can incorporate the channel-scanning of spread spectrum to provide you the best response accessible in a cordless phone. 2.4 GHz technology will separate your signal into two different frequencies that makes it free of interference. Spread spectrum cordless is able to spread signal over several frequencies rather than locking onto one.
You can prefer for 900 MHz frequency band cordless phone even if you don’t need a top-of-the-line spread spectrum phone. This technology provides clearer signal than 46 or 49 MHz analogue cordless phones. Buying this model you can also save some money. But cordless phone with 46 to 49 MHz frequency bands are good for home use or quiet office.
A cordless Telephone With its Basic Operating Features
October 19, 2007
A cordless telephone is a combination of telephone and receiver which has two major parts such as base and handset. Base is able to convert the incoming call to an FM radio signal and broadcasts that signal. It is attached to the phone jack with a standard phone wire connection. Handset is able to convert the received radio signal to an electrical signal and sends that signal to the speaker. This operating on a frequency allows you to talk and listen at the same time.
As cordless telephone is an amalgamation of a radio transmitter or receiver and telephone, you have the following issues, such as range, sound quality and security. The range is the distance that the handset can be from the base. The distance can affect the sound quality, so as the radio signal it transmitted, and interfering structures. Security is an issue as radio signal goes over the open airways and they can be picked by other devices. To know more on cordless phones you need to know about radio frequency, analogue vs. digital technology and also the number of channels.
As cordless phone is a radio transmitter, it is operated at various radio frequencies set by Federal Communications Commission. It operates over three major frequency bands such as 43-50 MHz, which was common to early cordless telephones and 900 MHz which is the most common frequency for cordless phones that are used today. A 2.4 GHz or 5.8GHz cordless phone can operate at a greater distance and above frequencies that can be picked up by most radio scanners.
Analogue technology, which is common to cordless phones, is used in low-priced models. These analogue signals are more noisy or prone to interference with respect to sound quality, it can easily be picked up and interpreted by radio scanners. Digital signals provide more security and sounds clearer, it spreads spectrum DSS for cordless phones. It spreads the digital information in pieces over several frequencies between the receiver and the base.
The frequency band is subdivided into different increments or channels, which are capable of searching added increments to find a frequency pair that is clear from intrusion, to give better sound quality.
Siemens Gigaset E455 Sim Dect Phone Review
October 18, 2007
Change to Sim Dect for a change
Dect phones are comfortable to carry around and are provided with style and features to add to its demands. Siemens one of the leading companies in giving 
out the latest of the phones in the market has now launched its new piece of Siemens Gigaset E455 Sim Dect Phone to meet your requirements. Let’s know more about the phone by going through its features. The phone is enhanced with a SIM card reader and is protected with its dust and splash proof system or the IP54. It has a large colour display equivalent to 6 lines and has a screen saver option too.
The display when looked into, we get to see the call duration and the CLIP or the Caller display in it. The new Siemens Gigaset E455 Sim Dect Phone can act as an intercom between two handsets. It shows a call list for the last 30 entries and is supported with call waiting system too. Now your call be transferred as per your convenience and you can select it to the muting mode. The phone supports a directory that can store up to 150 contacts and numbers and can be even used as a speaker phone. For your convenience make use of its 2.5mm headset connector and make it more personal. It supports to send and receive SMS too.
To add to its features you can personalize it with 15 ringer melodies and can be even used as a room monitoring or baby phone device. The answering machine in the new Siemens Gigaset E455 Sim Dect Cordless Phone records for 35 minutes and your Siemens Dect phone can be used for call recording and for remote operations.
It has a belt clip provided with it for your convenience and the phone can be expandable up to 6 handsets, which is quite an advantage on owing this to your firm. The range it gives indoor and outdoor is from 50m to 300m. With a stand by time of 160 hours you are also given 12 hours of talk time with this DECT or GAP unit. Weighing around 131g with its base station, it has a dimension of 105 x 132 x 46 for the same. The handset with battery comes to 133g and has a dimension of 143 x 51 x 25. Now own this piece and make the difference in the way you communicate with style.
Idect M1 Designer Dect Phone
October 18, 2007
Idect M1 Designer Dect Phone, the latest in the Cordless Telecommunications is known as DECT –Digital Enhanced Cordless Telecommunication. One look 
at it and you won’t be able to take your eye from it. It is a stylish phone and looks like mobile like Slide Phone with brilliantly lit icon on its base. Its base with its added coloured ignited base gives it a stunning appearance.
To add to its stylish appearance is its display. Its stunning four lines white back lit inverse display gives it the desired importance when on line giving you that particular feel of holding on of the latest and stylish cordless phones in your hand. It’s a pride to keep it at your home or office.
The automatic lighting system that displays on sliding the phone is one of its remarkable features along with the other features. A phone is rated with its high performance looking at its talk time availability. This new cordless phone has a talk time up to 10 hours and 100 hours standby time. That’s one good reason why you should definitely go for this phone. Its phone book can store 50 names and numbers.
Its advantage over other phones is: -
• Digital Speak Phone
• Caller ID
• Call Transfer
• Call Conferencing
With its iSound you get to enjoy crystal clear sound technology. You can control the ringer volume both from the base and on the handset. You can redial your last 10 numbers and get 20-call log. You can find out the duration of the calls made through the call timer. This Idect M1 Designer Digital phone is provided with 6 monophonic ring tones. It has a secrecy button and a clock to add with. Make sure you own this piece of phone before anybody and we always give you the right advice in choosing the phone as this new piece is made for your convenience.
Doro 760X Pro Splash, Shock and Dust Proof Cordless Phone
October 18, 2007
Cordless phones become a staple device not only in busy offices but also in the UK homes. Lots of new features are introduced in these cordless phones making them easy to handle and access. Doro is a manufacturing and it has introduced a new model of cordless phone in the UK market in the name as Doro 760X Pro Splash, Shock and Dust Proof Cordless Phone. As the name of the product indicates, the device has been designed with the stuff to protect from splash, shock as and dust.
It is a digital cordless unit, uniquely designed to cope with tricky or tougher conditions. This unit has come with colour display. You can store up to 100 contacts in the phone book of the phone. It has featured with SIM card reader. If required you can activate the speaker phone option too. The device has featured with headset outlet. It has an adequate memory to store 50 caller ID. If you are in a noisy place, you can activate a unique feature called ‘vibration call alert’, so that the users can easily be alerted by the vibrations.
Doro 760X Pro Cordless Phone is capable of storing 10 dialled numbers in its memory. You can save up to 9 ring tones. The users can play polyphonic ring tones which offers high quality sound than any other ring tones. It has availed with VIP function. As it has equipped with back lit keypad, the light will illuminate automatically while you touch the keypad. You can also make use of the any time SMS function, to send text based messages within few seconds.
Doro 760X Pro Splash, Shock and Dust Proof Cordless Phone has availed with a remarkable technology called ‘Hearing Aid Compatible‘ (HAC). The standby time of the unit is about 120 hours. The users have to recharge the unit with the help of AAA NiMH rechargeable standard batteries. It will not take more time to recharge completely. It looks pretty with smart dimensions. It will be easy to carry as it weighs less.
