Grandstream GXP1620, Small-Medium Business HD IP Phone, 2 line keys with dual-color LED,dual switched100M/100M Ethernet ports, HD (with power supply)

2 linear keys with a two-color LED (1 SIP account and up to 2 simultaneous calls), 3 programmable XML context-sensitive keys, 3-party conference. 132 x 48 backlit graphical LCD display HD audio, hands-free speaker communication with excellent echo cancellation Automatic personal information service (weather, etc.), personalization of call tones, KPV tones Supports SIP (RFC3261), TCP/IP/UDP, RTP/RTCP, HTTP, ARP, ICMP, DNS (A record and SRV), PPPoE, TFTP, NTP, DHCP (client only) Voice compression - G. 723. 1, G. 729A/B, G. 711µ/a, G. 726-32, G. 722 (broadband), iLBC, in-band and out-of-band DTMF (in audio, RFC2833, SIP INFO) Built-in 100/1000Mbps Ethernet Switch, with Power-over-Ethernet support (GXP1405 only) Support for NAT traversal (STUN, etc), server fail-over, SIP presence (SIMPLE) LCD display, with a resolution of 128x4 2 two-color buttons for 2 SIP profiles 3 XML programmable context-sensitive keys. Telephony functions - Hold, transfer, forwarding, 3-party conference, parking, call interception, parallel phone, downloadable phone book (XML, LDAP, up to 500 contacts), second call, call log (up to 200 records), hot line, auto-answer, mouse dial, flexible number plan, hot desk, personalization of call melody, backup server and call flow when the main one disappears. The possibility of organizing a conference for up to 3 participants Headset jack (2.5 mm and RJ11) Full-duplex speakerphone with advanced echo cancellation capabilities A large contact book (up to 500 entries), as well as a call log for 2000 entries Stand - 2 corner positions Wall mounting Packet Prioritization-Layer 2 (802.1 Q, 802.1 p) and Layer 3 (ToS, DiffServ, MPLS) QoS Security-Administrator and user passwords, MD5 and MD5-sess authentication, encrypted AES, SRTP, TLS, 802.1 x configuration file Languages - Portuguese, Russian, Croatian, Simplified and Traditional Chinese, Korean, Japanese, etc. Upgrade/Configuration - Firmware via TFTP/HTTP/HTTPS, mass configuration via TR-069 or encrypted XML configuration file AES Food is a Universal power adapter: Input: 100-240V AC 50-60Hz; Output: +5V DC, 800mA Power-over-Ethernet (802.3 af, GXP1405 only) Maximum power 2.5 W (power adapter) or 3W (PoE) Physical characteristics - dimensions: 186mm (W) x 210mm (l) x 81mm (h) Weight: 0.7 kg carton Weight: 1.1 kg (GXP1400), 1.0 kg (GXP1405) Operating temperature and humidity-0-40 C, 10-90% (without condensation) Compliance with standards - FCC Part 15 (CFR 47) Class B EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN 60950-1 AS/NZS CISPR 22 Class B, AS/NZS CISPR 24, RoHS UL 60950 (power supply unit)