Grandstream GRP2634, Carrier-Grade IP Phones, 8 line keys, 4 SIP accounts, 32 VPK and 10 MPK, Gigabit Ethernet ports, PoE, HD (with power supply)

Protocols/Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS(A record, SRV,
NAPTR), DHCP, PPPoE, TELNET, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069, 802.1x,
TLS, SRTP, IPV6

Network interfaces
Two switched 10/100/1000 Mbps Ethernet ports with auto-detection,
built-in PoE support

Screen
2.8 inch Color TFT LCD Display 320x240 dots

Wi-Fi
Yes, Built-in dual-band WiFi 802.11 a/b/g/n/ac (2.4Hz and 5Hz)

Bluetooth
Yes, built-in

Function buttons
8 line buttons with up to 4 SIP accounts, 10 MPK with a pocket for a paper
label, 4 XML programmable context-sensitive on-screen buttons,
5 buttons (navigation, menu), 9 special function buttons for:
MESSAGE (with LED indicator), TRANSFER, HOLD,
HEADSET, MUTE, SEND/REDIAL,
HANDS-FREE, VOLUME +, VOLUME Additional RJ9 ports headset jack with EHS support for Plantronics headsets, USB port
for GUV series headsets from Grandstream and third-party USB headsets

Voice codecs and
features
Support G7.29A/B, G.711µ/a-law, G.726, G.722(wide-band), G723, iLBC, OPUS,
in- and out-of-band DTMF(in audio, RFC2833, SIP INFO)

Telephony functions
Hold, Transfer, Forwarding, 5-way Conference, Call Parking
, Call Interception, Shared Line (SCA)/parallel call display
(BLA), downloadable phonebook (XML, LDAP, up to 2000 entries), call waiting
, call log (up to 2000 entries), screen personalization using
XML, auto-dial when you pick up the phone, auto-answer, click-to-dial, flexible number
plan, hot table system, personalized ringtones and music on
hold, backup server and fault tolerance

HD Audio
Yes, high-resolution audio through a handset speaker and a speaker with
broadband audio support, two microphones.

The extension module
No

Footing
Yes, 2 positions are available, wall mounting option (*
wall mounting bracket sold separately)

QoS
Layer 2 QoS (802.1Q, 802.1P), 802.11e (WMM) and Layer 3 (ToS, DiffServ, MPLS) QoS

Safety
User and administrative level password,
MD5 and MD5-sess authentication, configuration file with 256-bit AES encryption,
SRTP, TLS, 802.1x, secure download

Supported languages English, German, Italian, French, Spanish, Portuguese,
Russian, Croatian, Chinese, Korean, Japanese, etc. languages

Update/Automatic configuration
Firmware update via FTP/TFTP/TFTPS/HTTP/HTTPS, group configuration
using GDMS/TR-069 or XML configuration file with AES encryption

Nutrition and energy efficiency
Universal Power Adapter included:
Input: 100-240V; Output: +12V, 1A;
Support for Power-over-Ethernet (802.3af)
IEEE 802.3az Ethernet energy efficiency

Max. power consumption 9.5W (power adapter) or 10.8W (PoE)
Temperature and humidity
Operation: from 0°C to 40°C
Storage: -10°C to 60°C
Humidity: 10% to 90% non-condensing