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 Graphic Display 4.3 inch (480x272) TFT color LCD Bluetooth Yes, integrated Feature Keys 12 line keys with up to 6 SIP accounts, 5 XML programmable context sensitive soft- keys, 5 navigation/menu keys, 11 dedicated function keys for : MESSAGE (with LED indicator), PHONEBOOK, TRANSFER, CONFERENCE, HOLD, HEADSET, MUTE, SEND/ REDIAL, SPEAKERPHONE, VOL+, VOLVoice Codecs Support for G7.29A/B, G.711µ/a-law, G.726, G.722(wide-band), G723.1, iLBC, Opus, in-band and out-of-band DTMF(in audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC, AJB, AGC Auxiliary Ports RJ9 headset jack (allowing EHS with Plantronics headsets), USB, extension module port Telephony Features Hold, transfer, forward, 5-way conference, call park, call pickup, shared-call-appea- rance (SCA)/bridged-line-appearance(BLA), downloadable phonebook (XML, LDAP, up to 2000 items), call waiting, call log(up to 500 records), XML customization of screen, off-hook auto dial, auto answer, click-to-dial, flexible dial plan, hot desking, persona- lized music ringtones and music on hold, server redundancy and fail-over HD Audio Yes, HD handset and speakerphone with support for wideband audio Extension Module Yes, can power up to 4 GXP2200EXT modules which features a 128x384 graphic LCD, 20 quick-dial/BLF keys which dual-color LED, 2 navigation keys, and less than 1.2W power consumption per unit. Base Stand Yes, 2 angle positions available, Wall Mountable QoS Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS 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 Multi-language English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, simplified and traditional Chinese, Korean, Japanese and more Upgrade/Provisioning Firmware upgrade via TFTP / HTTP / HTTPS, mass provisioning using TR-069 or AES encrypted XML configuration file. Power & Green Energy Efficiency Universal power adapter included: Input:100-240V ; Output: +12V, 1.0A ; Integrated Power-over-Ethernet (802.3af) Max power consumption : 5.4W(without GXP2200EXT) or 9.2W(with 4 cascaded GXP2200EXTs) Physical Dimension: 228mm(W) x 206mm(L) x 46mm(H); Unit weight:0.98kg ; Package weight:1.43kg Temperature and Humidity Operation: 0°C to 40°C Storage: -10°C to 60°C Humidity: 10% to 90% Non-condensing Package Content GXP2170 phone, handset with cord, base stand, universal power supply, network cable, Quick Installation Guide, GPL license Compliance FCC: Part 15 (CFR 47) Class B CE: EN55022 Class B; EN55024 Class B;EN61000-3-2; EN61000-3-3;EN60950-1 RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950.1