Grandstream GXP1628 Small-Medium Business HD IP Phone, 2 line keys

Protocols/Standards SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-MED, LDAP, TR-069, 802.1x, TLS, SRTP*, CDP/SNMP/RTCP-XR Network interfaces Dual 10/100/1000Mbps network port with integrated PoE Graphic display Graphic LCD display 132*48 (2.95’) pixels with backlight Function Keys 2 line keys with two-color LEDs, and 2 SIP accounts, 3 context-sensitive programmable touch keys, eight programmable BLF extension keys, 5 navigation/menu keys, 13 special keys with MUTE, HEADSET, TRANSFER, CONFERENCE, SEND, REDIAL functions, SPEAKERPHONE, VOLUME, PHONEBOOK, MESSAGE, HOLD, PAGE/INTERCOM, RECORD, HOME Voice codecs Support G.711µ/a, G.722 (broadband), G.723, G.726-32, G.729 A/B, iLBC, in and out of DTMF range (In audio, RFC2833, SIP INFO)VAD, CNG, AEC, PLC, AJB, AGC Telephony Functions Hold, Transfer, Redirect (unlimited/no-response/busy), Shared Call Appearance (SCA) / Bridged Line Appearance(BLA), Downloadable phone book (XML, LDAP, up to 1000 items), Call Waiting , Call history (up to 200 entries), Auto-dial, Automatic response, One -click dialing, Flexible numbering plan, Hot Desking, Personalized music ringtones, Redundancy servers and fault tolerance Headset connector Headset with RJ9 connector (which allows the use of EHS with headsets Plantronics) HD Audio Yes, HD tube and speaker with broadband audio support Base stand Yes, 2 corner positions are available, Wall mounting option Wall mounting option Yes QoS QoS layer 2 (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) Safety User and administrator level access control , MD5 and MD5-sess authentication, 256-bit encrypted AES configuration file, media access control SRTP*, TLS, HTTPS, 802.1x Multilingual support English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, Simplified and Traditional Chinese, Korean, Japanese, etc. Updating/providing services Program update via TFTP/HTTP/HTTPS, mass provision of services via TR-069 or AES-encrypted XML configuration file, FTP/FTPS Energy consumption and environmental energy efficiency Universal power supply connector 100-240VAC 50-60Hz; Output +5VDC, 600mA; PoE: IEEE802.3af Class 2, 3.84W-6.49W; IEEE802.3az (EEE) Dimensions and weight Dimensions 209mm(L) x 184.5mm(W) x 76.2mm(H) (With tube), Device weight: 0.8 kg; Package weight: 1.2 kg Temperature and Humidity For operation: 0°C to 40°C, Storage: -10°C to 60°C, Humidity: 10％ - 90% Non-condensing Contents of the delivery set GXP1628 phone, handset with cord, base, universal power supply, Power cord, Quick Start Guide, brochure, license GPL Accordance FCC: Part 15 (CFR 47) Class B, CE : EN55022 Class B, EN55024, EN61000-3-2, EN61000- 3-3, EN60950-1, RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950; AS/NZS 60950.1