Grandstream Networks HT818 VoIP telephone adapter

The HT818 is a powerful 8-port VoIP gateway with 8 FXS ports and an integrated Gigabit NAT router. Built for users looking for a strong analog-to-VoIP converter, 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 certificate per unit, automated provisioning for volume deployment and device management, and outstanding network performance for enterprise use.- Supports 2 SIP profiles and 8 FXS ports- Strong AES encryption with security certificate per unit- Automated & secure provisioning options using TR069- 3-way voice conferencing per port- Exceptional voice quality with wide-band HD codec- Supports T.38 Fax for reliable Fax-over-IP- Supports dual Gigabit network ports- High performance NAT router

Features
Voice codecs:	G.711, G.723.1, G.726, G.729A, G.729B, OPUS, iLBC
Fax compatibility:	T.38
Reset button:
LED indicators:	LAN, Power, WAN
Certification:	FCC/CE/RCM
Network
xDSL connection type:	ADSL
Quality of Service (QoS) support:
Call management
Caller ID:
Conference call:
Call waiting:
Protocols
Supported network protocols:	TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, STUN, SIP (RFC3261), SIP TCP/TLS, SRTP, TR-069
Security
Security algorithms:	AES, HTTPS, SIPS, SSL/TLS
Ports & interfaces
Ethernet LAN (RJ-45) ports:	2
Modem (RJ-11) ports:	8
Logistics data
Harmonized System (HS) code:	85177900
Operational conditions
Operating temperature (T-T):	0 - 40 °C
Storage temperature (T-T):	-10 - 60 °C
Operating relative humidity (H-H):	10 - 90%
Weight & dimensions
Dimensions (WxDxH):	120 x 180 x 36 mm
Weight:	356 g