What are the dimensions and weight of the Grandstream HT813 VoIP Gateway?

The dimensions of the Grandstream HT813 VoIP Gateway are 1.14 inches x 5.14 inches x 3.56 inches, and it weighs 0.31 lb.

What types of telephone interfaces does the Grandstream HT813 VoIP Gateway support?

The Grandstream HT813 VoIP Gateway supports 1 x RJ11 FXS port and 1 x RJ11 FXO PSTN line port with lifeline support.

$72^.00

$89.00

Limit 5 per customer.

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Telephone Interfaces: 1 x RJ11 FXS port, One (1) RJ11 FXO PSTN line port with lifeline support
Network Interface: 2 x 10/100 Mbps ports (RJ45) with integrated NAT router
Accessories

The Open Box Product Disclaimer applies to this product. Please note that this product is non-returnable and non-refundable.

Specs

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Model
Brand	Grandstream
Model	HT813

Type
Type	Accessories

Spec
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
Security	Media: SRTP Control: TLS / SIPS / HTTPS Management: Syslog support, telnet, SSH, remote management using web browser
Ports	Telephone Interfaces: 1 x RJ11 FXS port, One (1) RJ11 FXO PSTN line port with lifeline support Network Interface: 2 x 10/100 Mbps ports (RJ45) with integrated NAT router
LEDs	POWER, LAN, WAN, FXS, FXO
Power	Input: 100-240V AC, 50-60Hz Output: 12V / 0.5A
Dimensions	1.14" x 5.14" x 3.56"
Weight	0.31 lb.
Temperature	Operating Temperature: 0 ~ 40 degree Celsius (32 ~ 104 degree Fahrenheit) Storage Temperature: -10 ~ -60 degree Celsius (14 ~ 140 degree Fahrenheit)
Humidity	10% to 90%, Non-Condensing

Features
Features	Supports 2 SIP profiles through 1 FXS port and 1 FXO port Dual 100 Mbps LAN and WAN ports Lifeline support (FXS port will be hard-relayed to FXO port) in case of power outage 3-way voice conferencing per port Automated & secure provisioning options using TR069 Supports T.38 Fax for reliable Fax-over-IP Failover SIP server automatically switches to secondary server if main server loses connection Strong AES encryption with security certificate per unit

Additional Information
First Listed on Newegg	December 19, 2025