Grandstream HT818 User Manual

Powerful 8 port FXS Gateway with Gigabit NAT Router

HT818

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 certicate per unit, automated provisioning for volume deployment and device management, and

outstanding network performance for enterprise use.

Supports 2 SIP

proles and 8 FXS

ports

Exceptional voice
quality with wide­band HD codec

Strong AES
encryption with
unique security

certicate per unit

Supports T.38 Fax
for reliable Fax­over-IP

www.grandstream.com

Automated & secure
provisioning options
using TR069

Supports dual Gigabit
network ports

3-way voice
conferencing per
port

High performance NAT
router

Interfaces

Telephone Interfaces

Network Interface

LED Indicators

Factory Reset Button

Voice, Fax, Modem

Telephony Features

Voice Codecs

Fax over IP

Short/Long Haul Ring Load

Caller ID

Disconnect Methods

Signaling

Network Protocols

QoS

Eight (8) RJ11 FXS ports

Two (2) 10/100/1000Mbps RJ45 ports

POWER, LAN, WAN, PHONE1, PHONE2, PHONE3, PHONE4, PHONE5, PHONE6,
PHONE7, PHONE8

Yes

Caller ID display or block, call waiting, ash, blind or attended transfer, forward,

hold, do not disturb, 3-way conference

G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.723.1, G.729A/B, G.726, iLBC,

OPUS, dynamic jitter buer, advanced line echo cancellation

T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax
Pass-through

2 REN, up to 1km on 24AWG line

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

Busy Tone, Polarity Reversal/Wink, Loop Current

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

Layer 2 (802.1Q VLAN, SIP/RTP 802.1p) and Layer 3 (ToS, Diserv, MPLS)

DTMF Method

Provisioning and Control

Security

Media

Control

Management

Physical

Universal Power Supply

Environmental

Dimension and Weight

Compliance

In-audio, RFC2833 and/or SIP INFO

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

SRTP

TLS/SIPS/HTTPS

Syslog support, SSH, remote management using web browser

Input: 100-240VAC, 50-60Hz
Output: 12V/1.5A

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

(L)180mm*(W)120mm*(H)36mm
356g

FCC/CE/RCM

www.grandstream.com