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	Dual switched auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports with integrated PoE
Bluetooth	Yes, integrated
Wi-Fi	Yes, integrated dual-band Wi-Fi 802.11 a/b/g/n/ac (2.4Ghz & 5Ghz)
USB	Yes
Graphic Display	4.3 inch (320x240) TFT color LCD, 2.4 inch (480x272) additional screen
Voice Codecs and Capabilities	Support for G7.29A/B, G.711µ/a-law, G.726, G.722 (wide-band), G723, iLBC, OPUS, in-band and out-of-band DTMF (in audio, RFC2833, SIP INFO)
Telephony Features	Hold, transfer, forward, 3-way conference, call park, call pickup, shared-call-allappearance (SCA) /bridged-line-appearance(BLA), downloadable phonebook (XML, LDAP, up to 2000 items), call waiting, call log (up to 2000 records), XML customization of screen, off-hook auto dial, auto answer, click-to-dial, flexible dial plan, hot-desking, personalized music ringtones and music on hold, server redundancy and fail-over
HD Audio	Yes, HD handset and speakerphone with support for wideband audio
Feature Keys	6 dual-color line keys with up to 6 SIP accounts (can be digitally programmed as up to 24 provisionable BLF/fast-dial keys), 5 XML programmable context sensitive softkeys, 5 navigation/menu keys, 10 dedicated function keys for: MESSAGE (with LED indicator), PHONEBOOK, TRANSFER, CONFERENCE, HOLD, HEADSET, MUTE, SEND/ REDIAL, SPEAKERPHONE, VOL+, VOL-
Base Stand	Yes, 2 angle positions available, Wall Mountable
QoS	Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS
Auxiliary Ports	RJ9 headset jack (allowing EHS with Plantronics headsets), USB
Security	User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, SRTP, TLS, 802.1x media access control, secure boot
Multi-language	English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, Chinese, Korean, Japanese and more
Upgrade/ Provisioning	Firmware upgrade via FTP/TFTP / HTTP / HTTPS, mass provisioning using GDMS/TR069 or AES encrypted XML configuration file.
Power & Green Energy Efficiency	Universal power adapter included:
	Input: 100-240V; Output: +12V, 1A
	Integrated Power-over-Ethernet (802.3af)
	Max power consumption 6.1W (power adapter) or 7.8W (PoE)
Temperature and Humidity	Operation: 0°C to 40°C Storage: -10°C to 60°C
Temperature and Humidity	Humidity: 10% to 90% Non-condensing
Package Content	GRP2616 phone, handset with cord, phone stand, 12V power adapter, networkcable, Quick Installation Guide, GPL license
Compliance	FCC: Part 15 Class B; Part 15 Subpart C 15.247; Part 15 Subpart E 15.407; FCC Part68 HAC; Part 1 Subpart I (MPE)CE: EN 55032; EN 55035; EN 61000-3-2; EN 61000-3-3; EN 62368-1; EN 301489-1; EN301489-17; EN 300328; EN 301893; EN 62311RCM: AS/NZS CISPR32; AS/NZS 4268; AS/NZS 62368.1; AS/CA S004; AS NZS 2772.2IC: ICES-003; CS-03; RSS-247; RSS-102 (MPE)
Dimension	247 x 228 x 82.4mm
Weight	1020g