The best intercoms for 2020

Almost all types of business, small, medium, in the field of services imply direct communication with customers. The overall efficiency of the business depends on the quality of this relationship. Provide two-way client communication, hold a conference call, conference, intercoms will help. The editors of the site "bestx.htgetrid.com/en/" have prepared for you an overview of the best intercom for 2020.

What it is?

The term intercom (CP) means various communication systems, the main ones are:

• Intercoms - devices for intercom;
• Selectors - for conference calls;
• Internal public address systems - used for emergency calls;
• Models of one-sided, external notification - allow you to listen to notifications of power structures, the Ministry of Emergencies;
• Two-way communication devices with a loud-speaking exit - their scope of use is a gas station, elevator service, the cashier is a client.

By the type of connection, all PUs are divided into two categories:

• Wired, usually 220 - volt, connection;
• Wireless communication carried out via radio waves.

Each connection method has its own advantages and disadvantages. The disadvantage of any wired connection is the required cable installation. The durability of communication, sound, safety at work, confidentiality of transmitted information depends on its quality. In addition, the installation work for laying the cable can be quite expensive, especially when it comes to a branched network. Wireless models can be easily connected to the head unit or to each other independently, for which there is a simple step-by-step instruction. The disadvantages of such a connection are the dependence of the communication range on the distance between points and the thickness of the internal overlap. With increasing distance, the number of walls, the stable connection will fall in direct proportion. Such a subscriber unit is susceptible to the influence of extraneous interference, for example, from household electrical appliances. For the sake of objectivity, it should be noted that wired intercoms can distort sound if a powerful thyristor-type noise-generating device is installed at a voltage of 220 volts.

What are PUs by type of connection

A distinctive feature of all the above devices from the transmitting and receiving radio stations is their closed structure. That is, regardless of what type of model is used, single-channel, two-channel or multi-channel, there is no connection to external intercoms. The main ways of talking of all PUs are:

• Duplex is the most comfortable mode of communication, the participants of which communicate simultaneously.
• Simplex - budget devices with a variable channel of information. Loudspeaker communication carried out in this way works only for receiving a voice message, or for transmitting it. As a rule, switching between interlocutors is carried out using the toggle button.
• Half-duplex automatic is a medium-priced equipment that occupies an intermediate place between simplex and duplex. The principle of operation of the device is simple.After one subscriber ends the conversation, the equipment automatically switches from transmitting information to receiving it. The weak side of this mode is that during intense conversation, the endings of words disappear.
• For conferences - it can have mixed types of information transfer, in which it is possible to disconnect subscribers from the central console, connect other participants in the conversation using full duplex or automatic half duplex.

Another important factor characterizing the intercom is their hierarchical structure. One of the most common is radial, in which connections with other subscribers diverge from the central console, like threads. Another popular option, vis-a-vis, in which one interlocutor is directly connected with another. In this case, the number of connected subscribers is called the subscriber capacity. It can be of two types, single-channel, such as the same vis-a-vis hierarchy, or multi-channel. However, with a large number of subscribers, communication nodes become complex and expensive during operation and subsequent maintenance. In case of an increase in the growth of subscribers, the recommendations of experts - installation of a mini - automatic telephone exchange. An important factor of PU will be the level of its protection from the external environment. As with any other technique, this factor is indicated by the abbreviation IP with a two-digit number. Where the first number is the degree of protection against mechanical stress, the second is how well the device is able to prevent moisture from entering. This is especially important when the device is powered from a 220 volt variable network.

How to choose the most suitable model?

With such a variety of connection types, connection schemes, characteristics, it is rather difficult to understand what to pay attention to first of all. But in order to decide which one is better to buy an intercom, you must first of all understand its scope. So for office premises of a closed type, it would be irrational to choose a model, whose body will have increased moisture and shock resistance. Such devices are best suited for enterprises with daily customer flow and access to the external environment. Such as petrol stations, bus stations, air terminals. For such organizations, as well as supermarkets, in addition to shock resistance, wear resistance of equipment, it is important that the body is steel. Yes, such models are more expensive, but the popularity of models with a steel case is high. After all, it can withstand repeated sanitization, which is extremely important for compliance with sanitary and epidemiological standards.

Which company is better to buy

For the most part, the best manufacturers of this equipment fall into three groups:

• Asian manufacturers, usually Chinese, South Korean;
• Russian, their products are overwhelming on the market;
• American, European companies.

With all the attractiveness of buying a famous brand, be it South Korean or European, it should be understood that often the production of these companies is localized. That is, regardless of the country of the manufacturer, the assembly is carried out on the territory of Russia and the main characteristics of these devices are generally similar to each other.

Where can I buy

As described above, inexpensive PUs operating by radio transmission of information can be assembled by hand in a short time. Accordingly, you can buy them in the online store, where there is a wide selection of such systems and video instructions for installing them. But when buying multi-channel, complex, wired systems, the process of installing equipment becomes the main issue and expense item. Therefore, it is best to make such purchases through companies specializing in the installation and configuration of PU. They will also be able to train the company's employees to work with the equipment, give advice on proper operation, and provide warranty service.

Rating of high-quality intercoms for 2020

Budget price category

SLINEX AM - 20

A simple, reliable duplex device, the main purpose of which is to operate at a remote distance from the visitor behind a barrier that prevents sound propagation. Such as the control room of a closed enterprise, a checkpoint, an information desk. The device consists of two units, each with a loudspeaker microphone. The operator can adjust the input and output volume of the speakers, as well as mute the microphones for both units. With the help of an additional output, it is possible to install another loudspeaker or connect sound recording equipment. It is also allowed to connect an external, portable microphone. And thanks to the Motorola audio chip, which is the "heart" of the installation, the transmitted sound is clear, without any external noise.

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Digital Duplex DD-205T HF

A device created for organizations of the same profile as the previous model SLINEX AM - 20, while having more advanced functionality. So instead of one Motorola audio chip, two are used here, there is digital noise reduction, amplification of the customer's and cashier's voice. This allows the client to conduct a conversation with the operator at the same time without distorting words, without the need to raise his voice even in a very noisy environment (gas station, airports, train stations). Another distinguishing feature of this model from the previous one is the presence of a call button for the operator, which is sometimes necessary if he leaves the workplace.

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STELBERRY S-400

Popular models of the STELBERRY S-400 series, in the opinion of businessmen from a wide range of activities, represent one of the best combinations in the price-quality category. They have proven themselves in many areas of business, such as banks, train stations, shops, receiving the best reviews from the staff. After all, all the basic operations with this device, decrease - increase the volume, adjust the sensitivity of the microphone, are carried out by touch buttons. Their application simplifies the work with the client, while increasing the life of the device. Unlike models with mechanical toggle switches. In addition, the use of this technology, together with the dirt-repellent plastic, allows the S-400 to keep its eye-pleasing appearance all day long.

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Average price category - up to 10,000 rubles

STELBERRY S-410

PU, which has a number of indisputable advantages over even more expensive models. It is one of the few models in this price category with a simplex function. This function is suitable for meeting rooms with an increased background noise, bus stations, workshops. During a conversation, the operator switches on the simplex mode with a button on the remote control. After that, the information is transmitted to the client or operator alternately using the toggle switch. The work of the "cashier" has been simplified thanks to the bending microphone stand and the angle bracket, which allows the most efficient installation of the "client" unit.

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Digital Duplex 215G HF

Three-wire, duplex model, working in places of increased noise "debris". At the same time, the conversation between the operator and the client, in the opinion of the buyers of this model, remains unconstrained, without interference. All thanks to the "heart" of the DD - 215G HF, Motorola's dual audio chip working in conjunction with a digital background noise detector. Another distinguishing feature of the DD— 215G HF is a remote vandal-proof client panel equipped with an operator call button. Therefore, the latter is not necessarily always near the microphone. It is convenient for a visitor to work in an office or a hall, the output power level of the client unit, filtration from impurities, allow to make out the cashier's speech without straining his hearing.

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Price category above 10,000 rubles

Stelberry D-600

Almost all of the devices mentioned in this list have been designed for two-way operation using an external client unit. The D-600 is designed for offices, therefore it does not have a protected, external unit with a speaker. With the help of the apparatus, communication is carried out between the secretary - the chief, or according to the scheme of a group of employees (department) - head. The device consists of two bimodules, each of which is equipped with a microphone, light signaling of turning on the microphone, a call button, and a speakerphone. The latter has the ability to connect external speakers. Sound quality is ensured by a highly sensitive audio detector, a special coating on the microphone that prevents background distortion. For example, during strong operation of the office air conditioner. And of course, the description of PU would be incomplete without mentioning the pleasant appearance and color of the D-600.

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Stelberry S-645

The rating of the best PUs in 2020 is completed by a four-channel, wired radial hierarchical layout system. The central control module is interfaced with a notification megaphone and four interphone consoles. The dispatcher has access to either external notification or selective communication over one of four channels. With whom to establish contact, the dispatcher himself selects, including the desired channel, after the call signal comes through the notification button. In order for the buyer to avoid a possible mistake when choosing this system, it should be clarified that the conference mode is not possible here. In case of a strong background environment, the “simplex” function is activated. It provides the inclusion of the dispatcher and the client in the conversation through a button, alternately at the request of the dispatcher himself. Thus, the transmission of information becomes more stable and better. The main criteria for choosing the S-645 is clear communication with several clients, with the possibility of their notification (checkpoints, security enterprises, protected areas).

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Conclusion

The review offered for reading contains only the most interesting intercoms. It is quite possible that some well-proven devices or novelties have escaped our attention. Therefore, if you want to supplement the article with useful information or suggest how much it costs, for example, the installation of a dial-up line, be sure to write this in the form of a comment under the article.