Brand: Dinstar
Model: C66GP
Type: IP Phone
Audio: HD Voice
Wideband Codec: G.722, OPUS-WB
Narrowband Codec: PCMA, PCMU, G.729, G723, G726, AMR, OPUS, iLBC
Echo Cancellation/Dynamic Jitter: Voice Activity Detection (VAD), Comfort Noise Generation (CNG), Full-duplex Speaker
Protocols & Standards: SIP v1 (RFC2543), SIP v2 (RFC3261), SIP over TLS, SRTP, TCP/IP/UDP, RTP/RTCP, RFC2198, RFC1889, HTTP/HTTPS/FTP/TFTP, ARP/RARP/ICMP/NTP/DHCP, DNS SRV/ A Query/NATPR Query, STUN, Session Timer (RFC4028), DTMF: In-Band, RFC2833, SIP INFO, LLDP, 802.1X, OpenVPN
Call Features: 6 SIP Accounts, Call Waiting, Call Forward, Blind/attended transfer, Call hold, Call mute, DND mode, Speed Dialing, Hotline, Redial, Call Return, Auto-redial, Auto-answer, Dial Plan, 6-way conference, Peer Dialing
Phone Features:  Adjustable Voice Volume, Selectable Ring Tones, XML Browser, Action URL/URI, Keyboard lock, Phonebook: 1,000 Groups, Blacklist: 100 Groups, Call Log: 100 Logs, Support 5 Remote Phonebook URLs, LDAP, Support Multiple Languages, Support EHS wireless headset(Plantronics,Jabra, Sennheiser)
IP-PBX Features: SMS, Voicemail, MWI; Music On-hold, Intercom, Multicast; Call Pickup, Call Pickup in Group; Anonymous Call; Anonymous Call Rejection
Management: Auto provisioning: FTP/TFTP/HTTP/HTTPS/PnP, Configuration via HTTP/HTTPS web, SNMP,TR069, Network capture, NTP/Daylight saving time, Firmware upgrade via web, Syslog, Configuration backup/restore, Equipment Management System (NMS）
Physical Features: Color 4.3” High resolution screen (480x272)
Dual-angle foot stand: 40° and 55°
Dimensions(approx.): 238x223x42mm(WxLxD) without foot stand, 238x223x168mm(WxLxD) with foot stand
Weight(approx.): device 700g, foot stand 60g
Input voltage: 5Vdc
Power supply: PoE or 5Vdc power adapter
USB output currency(PSU): 5V⎓400mA
USB output currency(PoE): 5V⎓1200mA
Power consumption: 2.4W without USB output current, PoE IEEE802.3af
Handset: 4P4C, RJ9
Headset: 4P4C, RJ9
Extended interface: 6P6C, RJ12
Environmental conditions: Operation temperature: 0~40°C
Humidity: 10% to 95% (non-condensing), 2xRJ45 10/100/1000M Ethernet Ports
Warranty: 1 Year