Grandstream Desktop Hotel Phone 3.5" Black

Design
Product type The sub-category of the product.	IP Phone
Handset type	Wired handset
Product colour The colour e.g. red, blue, green, black, white.	Black
Backlight keypad
Wall mountable The product can be mounted on (attached to ) a wall.
Mounting What size the mounting head of the product is, to couple it with a camera.	Wall

Performance
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Hearing aid compatibility

Phone features
Lines quantity The number of lines in the phone.	2 lines
Answering machine The product contains an answering machine where you can leave messages if the phone is unanswered/engaged (busy).
Speed dialling
Call hold
Conference call
Redialing
Frequency band 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.	2.4 & 5
Call transfer

Management features
Integrated voicemail
Keypad number of keys	26
Number of function keys	5
Management platform	GDMS

Display
Display The description of display that can includes display type, resolution, size etc.	LCD
Display diagonal Size of the display for this product, measured diagonally, usually in inches.	8.89 cm (3.5")
Display resolution The number of distinct pixels in each dimension that can be displayed. It is usually quoted as width × height, with the units in pixels: for example, "1024 × 768" means the width is 1024 pixels and the height is 768 pixels. The higher the number of pixels, the sharper the image.	480 x 320 pixels
Touchscreen A screen of a laptop, smartphone, etc., that responds to touch so you can control the interface using your fingers.
Graphical user interface (GUI) language	English, French, Multi, Spanish

Camera
Front camera Camera at the front of the product.

Audio
Speakerphone 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.
Microphone mute
Voice codecs	AEC, AGC, AJB, CNG, G.711alaw, G.711u, G.722, G.723, G.726, G.729A, G.729B, OPUS, PLC, VAD, iLBC
Adaptive jitter buffers

Network
Ethernet LAN An Ethernet LAN (Local Area Network) interface is present, for a wired conection via a cable.
Ethernet LAN interface type The characteristics of the Ethernet LAN interface.	Fast Ethernet
Ethernet LAN data rates The different speed levels of the Ethernet LAN connection.	10,100 Mbit/s
Wi-Fi Popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves.
Wi-Fi standards The type of wireless local area network (LAN). It can be ad-hoc, where units in a network communicate peer-to-peer, or Infrastructure, where units communicate with each other via an access point A LAN interconnects computers in a small area e.g. home, school or office.	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax)
Bluetooth 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.
Quality of Service (QoS) support
DHCP client Whether the product features a DHCP (Dynamic Host Configuration Protocol) to obtain IP addresses within a network.
Security algorithms Security algorithms are used to provide authentication, cipher key generation, integrity and radio link privacy to users on mobile networks. The security algorithms supported are the ones that can be used with this product.	256-bit AES, HTTPS, SRTP, SSH, TLS
Networking standards The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.	IEEE 802.1Q, IEEE 802.1p

Ports & interfaces
USB Type-C ports quantity	1

Certificates
Compliance certificates	CE, Federal Communications Commission (FCC), Industry Canada (IC), RCM, UKCA

Power
Power over Ethernet (PoE) The device supports Power over Ethernet (PoE), which is one of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras.
AC adapter input voltage	100-240 V
Input frequency The frequency (Hz) which is required to power the product.	50/60 Hz
AC adapter output voltage	12 V
AC adapter output current	0.5 A
USB output current	0.5 A
Power consumption (typical) Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.	6 W

Operational conditions
Operating temperature (T-T) The minimum and maximum temperatures at which the product can be safely operated.	0 - 40 °C
Operating relative humidity (H-H)	10 - 90%
Storage temperature (T-T) The minimum and maximum temperatures at which the product can be safely stored.	-10 - 60 °C

Weight & dimensions
Width The measurement or extent of something from side to side.	147 mm
Depth The distance from the front to the back of something.	210 mm
Height The measurement of the product from head to foot or from base to top.	89.8 mm
Weight Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.	658 g
Package weight Weight of the packaged product.	881 g

Packaging content
Handset
Quick start guide Instructions, either online, as a computer program or in paper form, to allow you to set up and start using the product quickly.
Number of handles included The amount of handles, which are the part by which a thing is held, carried or controlled.	1 pc(s)
AC adapter included
Stand included