Comparison Tantos Rocky vs CTV DP2700TM

— Internal Panel (Intercom). A device installed inside the premises for communication with visitors through the intercom system. Designed to ensure security, allowing communication with guests and controlling access to the building or apartment without the need to open the door.

— Call Panel. An outdoor device of the intercom system installed at the entrance to the building or apartment. The call panel is intended for visitors to call the hosts or owners of the premises and, if equipped with a camera, provide an exterior image, enhancing the level of security and access control.

— Kit (Panel + Intercom). Having both devices in the kit provides a complete communication and access control system right out of the box. This solution can be advantageous at the initial installation stage because the devices are maximally compatible with each other. However, when upgrading or due to personal preferences in certain functions, it may be easier to choose a call panel separately from the intercom.

Ways to connect devices.

— Wired. Connecting intercom system components through cables ensures stable and reliable signal transmission. In such a connection, a regular wire is used to connect the outdoor call panel with the indoor panel located inside the building. Wired connections provide high-quality sound and image, minimizing interference, and are ideal for stable system operation over long distances. This also enhances security, as wired connections are less susceptible to external influences compared to wireless solutions.

— LAN (RJ-45). Connection via RJ-45 port using an Ethernet-type network cable ("twisted pair"). This option is convenient as devices can be connected to a local computer network, providing several advantages. First, access can be configured on any computer or gadget within the network. Second, many such models can operate without intercoms and other specialized equipment — through an application on a computer/gadget. Third, laying the network cable from the panel to the router/switch is often easier than organizing an analog connection. Fourth, the number of panels and other specialized equipment within the "local network" can be almost unlimited — for example, all the call panels of an apartment building or a large office center can be connected into one network. Additionally, access to the call panel can even be set up via the Internet if desired, providing...

— Wi-Fi. Connection via the wireless Wi-Fi standard. This opti...on provides nearly all the capabilities of the aforementioned LAN (RJ-45), but has certain differences. The most noticeable is the lack of cables, significantly simplifying installation and connection. Even relatively modest Wi-Fi devices are powerful enough to operate confidently over distances of a couple dozen meters or through 1-2 medium-thickness walls. The most functional and thus the most popular type of analog wired connection. Suitable even for high-end video panels, though it actually appears in all categories of devices — from budget to top-tier.

— RJ-45. Connection via RJ-45 port using an Ethernet-type network cable ("twisted pair"). This option is convenient as the call panel can be connected to a local computer network, providing several advantages. First, access to the panel can be configured on any computer or gadget within the network. Second, many similar models can operate without intercoms and other special equipment — through an application on a computer/gadget. Third, laying the network cable from the panel to the router/switch is often easier than organizing an analog connection (e.g., using 4 wires — see above). Fourth, the number of panels and other special equipment within the "local network" can be almost unlimited — for example, all call panels of an apartment building or large office center can be connected into one network. Furthermore, access to the call panel can even be configured via the Internet, allowing you to communicate with visitors and manage access to the premises even when you're not present.

— Wi-Fi. Connection via the wireless Wi-Fi standard. This option provides nearly all the capabilities of the above-mentioned RJ-45 but with certain differences. The most noticeable is the absence of wires, which significantly simplifies installation and connection. Moreover, even relatively modest Wi-Fi devices are powerful enough to operate confidently over distances of a couple dozen meters or through 1-2 medium-thickness walls. The second nuance is the possibility of direct connection with smartphones, tablets, etc., without using computer networks; this possibility should be confirmed separately, but it is in this format, for example, that video calls operate (see "Type").

— RJ-45 / Wi-Fi. Supports both of the above-described connection methods. Such panels are maximally versatile; however, in practice, the ability to freely choose between LAN and Wi-Fi is rarely required, yet it significantly affects the cost. Therefore, this option has not gained much popularity.

Support for the SIP protocol enables the integration of devices into VoIP (Voice over IP) systems, allowing the use of internet connections for transmitting voice and video calls. SIP (Session Initiation Protocol) is a standard protocol for establishing, managing, and terminating communication sessions over the internet. In intercoms and door panels, SIP support enables video calls and communication with visitors through smartphones, tablets, or other SIP-compatible devices without the need for traditional phone lines. This also opens up opportunities for integrating the intercom system with other smart devices and security systems within a wider network, enhancing the device's flexibility and functionality.

The presence of touch buttons in the design of the intercom.

Unlike mechanical ones, such buttons do not need to be pressed in — they do not work by pressing, but by touch, which is somewhat more convenient. However, the main advantage of touch panels is still in a neat appearance and resistance to dirt. Such panels look modern and technologically advanced, they do not have protruding buttons that make it difficult to clean, and there are no gaps between the buttons and the panel itself, where dirt can accumulate. However they are somewhat more expensive and more difficult to manufacture than push-buttons; this is imperceptible to the average user, but is a disadvantage for manufacturers. That is why sensors, for all their advantages, have not supplanted traditional buttons.

— Android OS. The advantages of the Android OS include flexibility, which allows you to install third-party applications, thereby increasing the functionality of the device. Such applications may include SIP phones, programs that allow video surveillance, and others. But it is worth noting that such devices are not very suitable for the role of using a full-fledged tablet; firstly, most have a stationary location, and secondly, as a rule, the power of intercoms is not so high. Also, various restrictions may be set separately by the manufacturer; this must be clarified separately.

— Wi-Fi module. The Wi-Fi wireless communication module is found only in IP intercoms(see “Device type”). This function allows the device to connect to the network wirelessly - this is much more convenient than pulling cables, and the quality of communication is usually indistinguishable from a wired one. Another option for using Wi-Fi is a direct communication to a smartphone or tablet and using such a gadget as a remote control with an external screen; however, such an opportunity is provided relatively rarely.

- Mobile app. This feature means that the device can be operated via a smartphone or tablet with a special application installed on it. Such applications are usually released immediately for both of the most popular mobile operating systems today - Android and iOS; ho...wever, it would not hurt to clarify this point separately. In any case, control from a mobile device can have very extensive functionality (including even the ability to work via the Internet, in some models); and interacting with a device through a gadget that you can always keep with you is definitely more convenient than going to an intercom or other stationary equipment every time.

— SIP protocol. The intercom's support for the SIP protocol allows the intercom to redirect the signal from the calling panel through the telephone network to a mobile device, a stationary PBX or a computer with the appropriate software. Such a function may be useful, for example, in an office where there are a lot of visitors, and going up to the intercom every time to answer is inconvenient. Additional SIP capabilities in different models may vary significantly; they should be clarified separately.

- DVR support. The ability to operate the intercom in video recording mode from calling panels or from separate surveillance cameras. In most of these models, recording is not carried out constantly, but only when the call button is pressed or another event occurs - for example, a motion detector is triggered (see below). Video is most often saved to a memory card (see “Card Reader” below). In any case, this function allows you to find out who called the intercom at “inopportune hours”; it can also be useful in other situations - even to restore the picture of an emergency that came into view of the cameras.

— Internal communication (Intercom). This function allows you to make calls between intercoms on the same network. Depending on the implementation and settings, there is an addressable intercom, when you enter the number (identifier) of the device on the network to which you want to make a call, as well as options for setting up a general call, when the call goes to all devices on the network. In any case, this function will be useful if there are several intercoms in the network, so you can call, for example, a neighbor.

- Speakerphone. A hands-free function similar to that found in telephones. In this mode, a loud speaker and a sensitive microphone are used for conversation, located in the intercom body and allowing you to communicate comfortably at some distance from the device (up to a meter, or even more). This function is especially important for models with a handset (see “Execution”) - it allows you to talk without holding the handset. But devices without a handset, by definition, operate in a hands-free format.

- A voice message. An analogue of the answering machine function in phones, when the subscriber can leave a message if the owner of the intercom does not respond to the call. The function can be implemented in different ways, but in any case it is similar to the one with the usual expression: “Leave your message after the sound signal...”.

— Picture in picture. The ability to display a second image on the intercom screen, in addition to the main image. In this way, you can, for example, check the situation in the visibility range of a surveillance camera without interrupting communication with the visitor via the main video panel. The additional picture is small in size and is usually displayed in one of the corners of the screen.

- Motion Detector. A function that allows the intercom to detect movement in the visibility range of connected cameras and respond to it. The specific method of such a reaction may be different in different models: turning on recording, sending a notification to a user-specified device, sending a signal to an alarm output, etc.; These details should be clarified separately. In any case, the motion detector reduces the likelihood of missing significant events in the field of view of the cameras.

— Built-in memory. Built-in memory is found in video and IP intercoms (see “Device type”) and is usually intended for storing data from surveillance cameras. However, the volume of such memory is usually small, and it is usually used only for photographs (for example, to capture the faces of visitors); Video recording, if provided, is carried out on a memory card (see below). In any case, it would not hurt to clarify the operating features of the built-in memory separately.

- Frame. The ability to operate the intercom in digital photo frame mode - when photographs stored in the device’s memory (or stored on a memory card) are displayed on the screen (usually in slideshow mode). A mandatory feature of models with this function is a fairly large color screen - only on it photos will be normally visible; The intercoms themselves are usually video or IP models. The main purpose of the photo frame mode is aesthetic: showing beautiful pictures, the intercom plays the role of additional decor for the number.

The amount of energy consumed by the intercom in standby mode. In this mode, the device is energized and is in a state of readiness to receive a call; no functions are used, and the readiness itself does not require a lot of energy. Therefore, the value of this parameter, usually, is rather low, and you should pay attention to it only if you fundamentally strive for maximum efficiency of the installed equipment.

Power consumption of the intercom in the operating mode. Usually, this item indicates the value for situations where the device's functions are used to the fullest — in particular, when the display is on and the speakerphone is on (if any, see above). Note that the consumption in the operating mode rarely exceeds 20 W, so in most cases it is more of a reference, and not a practically significant parameter.

The temperature range at which the intercom is able to work normally.

If the device is installed in a residential area or office, you can not pay much attention to this parameter: the temperature in such an environment rarely goes beyond +18 ... +25 °C, such values are normally tolerated by any intercom. But if the device needs to be placed in a "non-standard" microclimate — for example, an unheated warehouse, where conditions do not differ much from outdoor ones, or a production workshop with a high temperature — you should make sure that the chosen model can normally endure such conditions.

Separately, we note that even the most “heat-resistant” intercom cannot be exposed to prolonged exposure to sunlight.

Call panel installation method.

— Mounted. Installation by hanging from fixtures placed on a wall, door frame, or other suitable location. This method is quite simple, besides, it allows you to relatively easily change the location of the device. On the other hand, it is less reliable than embedding, and it is easier for hooligans or thieves to rip such a panel from its attachment point.

— Embedded. Installation in a niche in a wall or other surface — in such a way that only the front side of the device is outside. and any movement of the device is also fraught with serious difficulties. Nevertheless, it also has advantages: it is almost impossible to remove the call panel from a niche without a special tool, and even with tools, this task takes time and effort.

— Mounted / built-in. This category includes outdoor panels that allow both of the installation options described above. Thus, the user can independently choose a method, depending on what is more important in this case: ease of installation or its reliability.