DTMF Method In-audio, RFC2833 and/or SIP INFO

QoS Layer 2 (802.1Q VLAN, SIP/RTP 802.1p) and Layer 3 (ToS, Diffserv, MPLS)

Dimension and Weight 28.5 x 130 x 90 mm (H x W x D)Weight: 0.29 Kg

Caller ID Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID

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

Telephone Interfaces Four(4) RJ11 FXS ports / Network Interfaces Two (2) 10/100/1000Mbps RJ45 ports

LED Indicators POWER, LAN, WAN, PHONE1, PHONE2, PHONE3, PHONE4

Operational: 32º – 104ºF or 0º – 40ºC Storage: 14º – 140ºF or -10º – 60ºC Humidity: 10 – 90% Non-condensing

Media SRTP / Control TLS/SIPS/HTTPS / Management Syslog support, SSH, remote management using web browser

Telephony Features Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference / Short/Long Haul Ring Load 2 REN, up to 1km on 24AWG line. / Disconnect Methods Busy Tone, Polarity Reversal/Wink, Loop Current

The HT814 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.

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

Compliance FCC/CE/RCM, K.21

Provisioning and Control HTTP, HTTPS, SSH, TFTP, TR-069 , secure and automated provisioning using AES encryption, syslog

Universal Power Supply Input: 100-240VAC, 50-60Hz

گرنداستریم-Grandstream