Grandstream Networks HT818 Administration Guide

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HT818 Administration Guide
Version 1.0.27.2
HT818 Technical Specifications
The following table resumes all the technical specifications including the protocols/standards supported,
voice codecs, telephony features, languages and upgrade/provisioning settings for the HT818.
Table 2: HT818 Technical Specifications
Interfaces
Telephone Interfaces
Eight (8) RJ11 FXS ports
Network Interface
Two (2) 10/100/1000 Mbps Ethernet port (RJ45).
LED Indicators
POWER, LAN, WAN, PHONE1, PHONE2, PHONE3, PHONE4, PHONE 5,
PHONE 6, PHONE 7 and PHONE 8.
Factory Reset Button
Yes.
Voice, Fax, Modem
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, G722, 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 24AWG line
Caller ID
Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID.
Disconnect Methods
Busy Tone, Polarity Reversal/Wink, Loop Current.
Signaling
Network Protocols
TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP,
TFTP, FTP/FTPS, 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 Methods
In-audio, RFC2833 and/or SIP INFO.
Provisioning and
Control
HTTP, HTTPS, FTP, FTPS, SSH, TFTP, TR-069, secure and automated
provisioning using TR069, syslog.
Security
Media
SRTP.
Control
TLS/SIPS/HTTPS.

Grandstream Networks HT818 Specifications

General

Brand	Grandstream Networks
Model	HT818
Category	Telephone Accessories
Language	English