Comparison Ezviz DP2 vs Ezviz DP2C

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 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.

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.

This protection describes how much the calling panel body. Protects sensitive internal components from dust and moisture. Standardly, it is designated by the letters IP with two numbers after them IP44, IP65, etc. The first digit means protection against penetration of solid objects and dust; its individual values correspond to the following levels of protection:

4 - protection against objects with a diameter of more than 1 mm
5 - dust protection (complete protection from contact; dust can penetrate inside, but does not affect the operation of the device)
6 — dust-tight (the housing is fully protected from dust and contact). br>Smaller values do not occur and there is no point in indicating them.

The second number characterizes protection against moisture, here the values can be as follows:


4 - protection against splashes from any direction;
5 - from jets from any direction;
6 - from sea waves or strong water jets;
7 - possibility of short-term immersion to a depth of up to 1 m (without the possibility of constant operation in submerged mode);

Of course, calling panels are not designed to be submerged under water - the latter option only characterizes a high degree of moisture resistance.

In some models, one of the numbers may be replaced by the letter X - for example, IPX7. This does not mean that there is no protection, but that the corresponding parameter is not IP certified. At the same tim...e, the degree of uncertified protection can be quite high - for example, the example above corresponds to the possibility of complete immersion under water, which requires a high degree of closure (at least dust resistance level 5).

— Plastic. Plastic is characterized by low cost with good performance; besides, it can take on almost any colour. On the other hand, its strength is relatively low: it is enough for most everyday situations, but plastic resists hooliganism and vandalism poorly. Therefore, this material has not received wide popularity in calling panels.

— Metal (anti-vandal). The main advantage of the metal is its high strength, and, accordingly, resistance to damage, which made it possible to call this material "anti-vandal"; in addition, it is resistant to temperature extremes and ultraviolet, and it looks solid. The only drawback of metal in the case of outdoor panels is a higher cost than plastic; however, the price difference is small and most often completely offset by the advantages of metal cases.

The horizontal viewing angle provided by the camera on the entry panel of the intercom.

This parameter has a double meaning: other things being equal, a wider field of view allows you to cover more space, but reduces the size of individual objects in the frame. So it’s worth choosing according to this indicator, taking into account what is more important for you — good visibility on the sides or an additional degree of increase. As for specific values, in modern outdoor panels they can vary from 50° (directional cameras) to 166° (ultra wide-angle lenses with a minimum of dead zones on the sides).