The Grandstream HT818 is an 8-port FXS gateway with an integrated Gigabit NAT router, exceptional voice quality, and strong per-unit encryption.
Built for users looking for a strong analog-to-VoIP converter, the HT818 is a powerful 8-port VoIP gateway with 8 FXS ports and an integrated Gigabit NAT router. It features Grandstream's market-leading SIP ATA/gateway technology with millions of units successfully deployed worldwide. This powerful gateway carries exceptional voice quality in various application environments, strong encryption with unique security certificate per unit, automated provisioning for volume deployment and device management, and outstanding network performance for enterprise use.
Features Supports 2 SIP profiles and 8 FXS ports Strong AES encryption with unique security certificate per unit Automated and secure provisioning options using TR069 3-way voice conferencing per port Exceptional voice quality with wide-band HD codec Supports T.38 Fax for reliable Fax over IP Supports dual Gigabit network ports High performance NAT router
Specifications Telephone Interfaces: Eight (8) RJ11 FXS ports Network Interface: Two (2) 10/100/1000Mbps RJ45 ports LED Indicators: Power, LAN, WAN, Phone1, Phone2, Phone3, Phone4, Phone5, Phone6, Phone7, Phone8 Factory Reset Button: Yes Telephony Features: Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference Voice Codecs: G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.723.1, G.729A/B, G.726, iLBC, OPUS, dynamic jitter buffer, advanced line echo cancellation Fax Over IP: T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through Short/Long Haul Ring Load: 2 REN: Up to 1km on 24 AWG Caller ID: Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID Disconnect Methods: Busy tone, polarity reversal/wink, loop current Network Protocols: TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, STUN, SIP (RFC3261), SIP over TCP/TLS, SRTP, TR-069 QoS: Layer 2 (802.1Q VLAN, SIP/RTP 802.1p) and Layer 3 (ToS, Diffserv, MPLS) DTMF Method: In-audio, RFC2833 and/or SIP INFO Provisioning and Control: HTTP, HTTPS, TFTP, SSH, TR-069, secure and automated provisioning using AES encryption, syslog Media: SRTP Control: TLS/SIPS/HTTPS Management: Syslog support, SSH, remote management using web browser Universal Power Supply: Input: 100-240VAC, 50-60Hz Output: 12V/1.5A Environmental: Operational: 32º – 104ºF or 0º – 40ºC Storage: 14º – 140ºF or -10º – 60ºC Humidity: 10 – 90% Non-condensing Dimensions and Weight: (L)180mm*(W)120mm*(H)36mm 356g Compliance: FCC/CE/RCM
