Grandstream Networks HT812 VoIP telephone adapter

The HT812 delivers powerful VoIP technology and routing capabilities to home and office environments, and allows users to successfully connect their analog devices to a manageable and powerful VoIP network. Built using Grandstream’s market-leading SIP ATA/gateway technology, with millions of units successfully deployed worldwide, this powerful ATA features exceptional voice quality in various applications and environments. The HT812 comes with 2 easy-to-use FXS ports, an integrated Gigabit NAT router, state-of-the-art encryption with a unique security certificate per unit, automated provisioning for volume deployment and device management and outstanding network performance.<br />Grandstream Networks HT812. Voice codecs: iLBC, G.711, G.723.1, G.726, G.729A, G.729B, OPUS, Fax compatibility: T.38, Certification: FCC/CE/RCM, K.21. Supported network protocols: TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, STUN, SIP..., Management protocols: Telnet. Security algorithms: AES, HTTPS. Output voltage: 12 V, Output current: 0.5 A. Dimensions (WxDxH): 130 x 90 x 28.5 mm, Weight: 353.33 g