Why you should not refuse from a fixed phone
Technologies / / December 19, 2019
It would seem, why continue to use landline phone, when the mobile is much more convenient? The fact there are reasons, and quite weighty. Today we will talk about what the standard DECT communication better the usual GSM, and find out why early to say goodbye to him.
First, some technical details. DECT (Digital Enhanced Cordless Telecommunications, digital enhanced cordless communication) - Technology wireless communication, which is based on data transmission at frequencies 1 880-1 900 MHz (in Europe) or 1 920-1 930 MHz (in USA). European version used in Russia, so we will continue to talk about it.
Briefly, all this is as follows: Range of 20 MHz is divided into 10 channels in which a radio signal travels from the base station to the portable handset. Base continuously sends a signal on one of these channels, performing the role of a guide for the tube. If there are several stations, the handset is connected to the one that provides the best connection quality. Actually, the quality of data transmission and is the first advantage of the DECT standard. Let us examine it more closely.
reliable communication
DECT equipment periodically scans the airwaves, searching the channels with the greatest signal strength and stable bond. When during a call interference occurs, the subscriber unit moves from one channel to another unnoticed for buddies.
No need to look for a place where the best catches, because it catches equally well within 300 meters from the base of the open space of 30-50 meters indoors. If there are multiple base stations, it is possible to provide uninterrupted coverage arbitrarily large area.
The possibility of creating an office telephone network
This advantage stems directly from the above-mentioned properties of DECT-phones. The tubes can be connected to multiple databases, moreover they do so even during the conversation, without creating any noise. You get a few bases and tubes, place them around the office - everything you can now to forget about the problems with communication.
In theory, any handset can work with any database, but in fact this is sometimes a problem. The most sensible thing to choose a device manufacturer, Panasonic eg. In the end, this company for a long time produces cordless phones, and does it well, so if they choose, among the offerings of one of the industry leaders.
Protection from wiretaps
Those who are concerned about the confidentiality of communication, should definitely take a closer look to the DECT-communication. At first glance it seems that overhear other people's conversations is quite possible, it is necessary only to connect to the base station. Here lies an unpleasant surprise for attackers: they do not have any chance to do so.
Handset and the base is assigned a unique PIN-code, which they exchanged at the first contact. Then, the device calculates the authentication key, which provides communication security. Base sends a request, the handset handles it with a key and transmits the base. Without knowledge it is impossible to guess the result of the key, so to intervene from the outside will not work in the system.
Big battery life
The advantages of direct DECT standard is not the case, but the point is quite important. How will stretch without charging your smartphone? Day, maximum two, if you use it in the mode of average activity. Handset DECT-communication withstand up to 14 hours of talk time and standby time - up to 10 days. At home, the phones usually live on the base, so this advantage is important for offices. Charge on weekends and throughout the week in use, no problem.
Environmentally friendly
For home or office phone, we usually talk much longer than on mobile, so security is becoming particularly important. The smaller the better, and the power of DECT transmitter device an average of only 10 mW. Possible effects on the body and the environment is minimized.
additional Features
Not a single bond are known for DECT-communication. Let it not full smartphones, but not old-fashioned machines that only know how to call it.
In modern devices is a function of "Baby Monitor", an alarm clock and a choice of melodies from the list of installed. You can use multiple handsets as walkie-talkies, communicating directly without the mediation of the base.
Phones that support DECT, can connect to Wi-Fi and Bluetooth, while the latest models even have cameras. tube search function helps you find missing in the home or office space. However, all these skills should not distract you from the main thing - high quality connection.
The result of all this is quite clear: if you want to communicate without interference and the risk that your conversation heard someone once, DECT - it's just a case of saying about an old friend and two new ones.