Grandstream Networks HT818 VoIP telephone adapter

Certification: FCC/CE/RCM | Operating relative humidity (H-H): 10 - 90% | Ethernet LAN (RJ-45) ports: 2 | Weight: 356 g | Operating temperature (T-T): 0 - 40 °C | Quality of Service (QoS) support: Yes | Security algorithms: AES | Security algorithms: HTTPS | Voice codecs: G.711 | Security algorithms: SSL/TLS | Security algorithms: SIPS | Reset button: Yes | Fax compatibility: T.38 | Dimensions (WxDxH): 120 x 180 x 36 mm | Modem (RJ-11) ports: 8 | Voice codecs: G.726 | Storage temperature (T-T): -10 - 60 °C | Voice codecs: G.729B | Voice codecs: OPUS | Conference call: Yes | Voice codecs: G.729A | Voice codecs: iLBC | LED indicators: Power | Voice codecs: G.723.1 | Harmonized System (HS) code: 85177900 | LED indicators: LAN | Caller ID: Yes | xDSL connection type: ADSL | Supported network protocols: TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, STUN, SIP (RFC3261), SIP TCP/TLS, SRTP, TR-069 | LED indicators: WAN | Call waiting: Yes