Title

Yealink W73H Téléphone VoIP

The sub-category of the product.

The colour e.g. red, blue, green, black, white.

What size the mounting head of the product is, to couple it with a camera.

The maximum distance to which the signals are transmitted, when the device is used indoors.

The maximum distance to which the signals are transmitted, when the device is used outdoors.

The number of lines in the phone.

The name and/or number of the caller comes up on screen when they ring the phone. You also send your caller ID when you call someone else unless you choose to deactivate it.

The number of names/numbers that can be stored in the phonebook of a phone.

A full-duplex system allows communication in both directions, and unlike half-duplex, allows this to happen simultaneously.

A small section of the spectrum of radio communication frequencies, in which channels are usually used or set aside for the same purpose e.g.for a channel on FM radio; for mobile networks to communicate with mobile phones.

The description of display that can includes display type, resolution, size etc.

Size of the display for this product, measured diagonally, usually in inches.

Resolution of the display for the system

A backlight is a form of illumination used in liquid crystal displays (LCDs). As LCDs do not produce light themselves - unlike for example Cathode ray tube (CRT) displays - they need illumination (ambient light or a special light source) to produce a visible image. Backlights are used in small displays to increase readability in low light conditions such as in watches, and in computer displays and LCD televisions to produce light in a manner similar to a CRT display.

Device has a microphone and loudspeaker provided separately from those in the handset. This device allows multiple persons to participate in a conversation. The loudspeaker broadcasts the voice or voices of those on the other end of the telephone line, while the microphone captures all voices of those using the speakerphone.

Bluetooth is a low-power radio technology developed to replace the cables and wires currently used to link or connect electronic devices such as personal computers, printers, and a wide variety of handheld devices including mobile phones. Because it uses radio-wave connectivity, a Bluetooth-enabled device has a constant, established connection to whatever browser it uses. This saves the user the trouble of logging on to check for emails or news updates, for example.

Whether the product features a DHCP (Dynamic Host Configuration Protocol) to obtain IP addresses within a network.

The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.

The frequency (Hz) which is required to power the product.

The type of battery in the device, e.g. nickel–cadmium (NiCd).

A measure of the charge stored by the battery. Determined by the mass of active material contained in the battery.

The voltage (V) of the battery.

The minimum and maximum temperatures at which the product can be safely operated.

The minimum and maximum temperatures at which the product can be safely stored.

Weight of the packaged product.