The HT814 V2 is an advanced 4-port VoIP gateway with 4 FXS ports and an integrated Gigabit NAT router.
Built upon Grandstream’s market-leading SIP ATA/gateway technology with millions of units successfully
deployed worldwide, this powerful gateway features 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 home and office
use. More information: Ports & interfaces | Ethernet LAN (RJ-45) ports | 2 |  | Modem (RJ-11) ports | 4 | Protocols | Supported protocols | TCP/IP/UDP, RTP/RTCP (RFC1889, 1890), HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, Telnet STUN (RFC3489, 5389), SIP (RFC3261), SIP over TCP/TLS, SRTP, SNMP, TR-069, IMS/3GPP, IPoE | Power | Power source type | AC | | AC input voltage | 100-240 V | | AC input frequency | 50/60 Hz | | Output voltage | 12 V | | Output current | 1 A | Operational conditions | Operating temperature (T-T) | 0 - 50 °C | | Storage temperature (T-T) | -10 - 60 °C | | Operating relative humidity (H-H) | 10 - 90 % | Security | Security algorithms | SIPS, SRTP, TLS | Weight & dimensions | Width | 130 mm | | Depth | 90 mm | | Height | 28.5 mm | | Weight | 290 g | Features | Voice codecs | CNG, G.711, G.722, G.723.1, G.726-32, G.729ab, OPUS, VAD | | Fax compatibility | T.38 | | Reset button | Yes | | LED indicators | Yes | | Power LED | Yes | | Product colour | Black | | Certification | FCC/CE/RCM, K.21 | Call management | Caller ID | Yes | | Conference call | Yes | | Call waiting | Yes |
|