Technology and Cell Phone Features
Technology is something that constantly grows and changes. In the last couple of decades, new and upgraded cell phones have become available all the time. If you were to go into any telephone book that is based in the U.S., you would find that cell phones and technology have changed vastly since the first phone was created. The cell phone industry is now worth well in excess of $65 billion a year.
Technology is anything that has changed over time and is capable of doing so. Cell phones are capable of video and music players. They can also telephone, with the addition of the facsimile machine, and can talk and send text messages. The latest cell phones run on a smaller battery than ever before, and have increased in features as well. New cell phones have high-speed wireless connections with built-in antennas and can download or upload information at lightning fast speeds. All this has increased their popularity among consumers.
One of the most popular forms of technology in use today is the mobile phone. Mobile technology involves radio transmitters and receivers, which are either connected to the base station, or satellite. With the advent of cell telephones, the need for a terrestrial base station arises. The terrestrial base stations transmit their signals through channels, which are constructed by the various companies that manufacture cell phones. These signals travel through various airwaves and are picked up by cell phones, which in turn communicate with the base station.
Some of the earliest cell phones did not have any memory, and used a single frequency, called an analog signal. As the technology for cell phones was developed, better ways of utilizing the same channels were discovered, and new methods of utilizing the waves became available. The analog signal was eventually replaced by the digital signal, which is much stronger and has a much faster transmission speed. The digital signal is much cheaper to transmit over long distances than the analog signal, and cell phones have benefited from this change.
Digital technology offers much more channels for voice calls than the analog system could ever dream of. There are about 22 types of voice channels that are used in modern cell phones. Each type carries a different frequency, which enables cell phone users to distinguish their calls. Cell phones are much more capable of talking over long distances than they used to be.
Digital cellular phones also support several additional features such as HD voice. This feature delivers a digitized version of a human voice, which is much clearer and more breathable. HD voice is delivered via digitally enhanced computers, which work much like DVD players. The increased clarity delivered by HD voice makes it a much more desirable feature for cell-phones.
In addition to voice quality, another important factor in purchasing a cell-phone is its ability to send and receive e-mail. Almost all new cell phones come with built-in e-mail capabilities. However, for some newer cell phones, it is necessary to add an external e-mail device. The advantage of having an external e-mail device is that it is usually capable of receiving and sending messages in various formats such as text and HTML. Some newer cell-phone models also allow the user to view incoming and outgoing e-mail messages in real-time through a Web cam.
Next, let’s look at voice quality. In general, the better the voice quality, the higher the frequency that is used to transmit the sound. Most commonly, voice channels range between seven hundred thousand hertz to thirty key. Cell-phones with voice channels ranging from seven hundred thousand hertz to thirty who are often referred to as high-frequency devices, or HD voice enabled cell phones.