Grandstream WP820/KZ

Protocol/Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV,
NAPTR), DHCP, SSH, TFTP, NTP, STUN, SIMPLE, LDAP, TR-069, 802.1x, TLS, SRTP*, IPv6

voice and video codecs and features
Supports G.711µ/A, G.729A/B, G.722 (Broadband), iLBC, Opus, In-band
and out-of-band DTMF (In audio, RFC2833, SIP INFO) VAD, CNG, AEC, PLC, AJB, AGC, ANS, H.264(decryption only)

Wi-Fi
Yes, built-in dual-band Wi-Fi module class 802.11 a/b/g/n (2.4GHz and 5GHz)

Encryption
Wi-Fi WEP, WPA/WPA2, WPA Enterprise

Display
2.4 inch (240x320) color TFT LCD screen

Periphery
3 on-screen buttons, dial, hang up, speaker, phonebook,
backlit keyboard, proximity sensor, accelerometer, vibration motor, volume, navigation
keys

Bluetooth
Yes, Bluetooth 4.2

Additional ports
3.5mm jack, micro USB charging port, dual microphone, two-color
LED

Telephony functions
Hold, transfer, forwarding, 3-way voice conference,
downloadable phone books (XML, LDAP, up to 100 entries), call waiting
, call log (up to 1000 entries), automatic dialing when you pick up the handset,
answering machine, click-to-dial, flexible number plan, hot desking, personalized
ringtones and music on hold, backup server, push button to talk

Operating system
Android 7.0, support for custom Android apps that fit the phone's screen/
keyboard
* There may be operational limitations when using Android apps. The touch screen
will become unavailable, viewing will be available from a small LCD screen of 300x240 pixels, and control will
be carried out only with the help of physical buttons.

Safety
Administrative and user-level passwords,
MD5 and MD5-based authentication, configuration files with 256-bit AES encryption, SRTP*, TLS, 802.1x
media access control

HD audio
Yes, both in the speaker and in the speaker with broadband audio
support, HAC support

QoS
802.11e (WMM) and Layer 3 (ToS, DiffServ, MPLS) QoS

Language support
English, Arabic, Chinese, Czech, Danish, German, French, Hebrew,
Italian, Japanese, Polish, Portuguese, Russian, Spanish, Turkish and
others

Update/Customization
Firmware update via TFTP/HTTP/HTTPS, mass configuration when using
TR-069 or encrypted XML configuration file, manual download, USB

Energy consumption and environmental friendliness
Universal power adapter is included in the package
Input: 100-240V AC; Output: +5V DC. current, 1A (5W)
1500mA Li-ion battery, 150h in standby mode and 7.5h in talk mode

Sizes
Tube size: 168.5 x 52.5 x 21.8mm
Charging stand size: 76 x 73 x 81mm
Tube Weight: 161g
Weight of the tube with packaging (except for the brief guide: 456g

Temperature and humidity
Operating temperature: 0°C to 45°C; Operating humidity: 10-90% (non-condensing)
Storage temperature: -20°C to 60°C; Storage humidity: 10%-90% (non
-condensing)

Package contents
Tube, universal power supply, charging stand,
Belt clip, 1 Li-ion battery, Quick guide
Durability Withstands a fall from a height of 1.2 meters

Accordance
CE: EN 301 893; EN 300 328; EN 55032; EN 55035; EN 61000-3-2;EN 61000-3-3; EN 62368-1;
EN 301 489-1/17; EN 50360; EN 62479; EN 50663; EN 50566.
FCC: FCC Part 15B; FCC Part 15C; FCC Part 15E; FCC Part 68 HAC.
RCM: AS/NZS 4268; AS/NZS 60950.1; AS/NZS CISPR 32; CISPR 35; AS/CA S004; AS/ACIF S040.
Japan: MIC-R; China: SRRC; EAC; RoHS 2.0(2011/65/EU&(EU)2015/863)；REACH.