Grandstream Networks HT812 User Manual

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HT812/HT814 User Guide
Table 2: HT812 Technical Specifications
Interfaces
Telephone Interfaces
Two (2) RJ11 FXS ports for HT812.
Network Interface
Two (2) 10/100/1000 Mbps Ethernet port (RJ45).
LED Indicators
POWER, LAN, WAN, PHONE1, PHONE2 for HT812.
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, 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
For HT812: 3 REN, up to 1km on 24AWG line.
For HT814: 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, TELNET, 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, TELNET, TFTP, TR-069, secure and automated
provisioning using TR069, syslog
Security
Media
SRTP
Control
TLS/SIPS/HTTPS
Management
Syslog support, telnet, remote management using web browser
Physical
Universal Power Supply
Input: 100-240VAC, 50-60Hz
Output: 12V/0.5A for HT812.
Output: 12V/1A for HT814.
Environmental
Operational: 32
o
– 104
o
F or 0º – 40ºC

Grandstream Networks HT812 Specifications

General

Brand	Grandstream Networks
Model	HT812
Category	Telephone Accessories
Language	English