[HT881] Grandstream HT881 FXO VoIP Gateway, 8 FXO + 1 FXS, Dual Gigabit, PoE, Lifeline

Grandstream HT881 FXO VoIP Gateway, 8 FXO + 1 FXS, Dual Gigabit, PoE, Lifeline

Part number HT881

Supports 3 SIP profiles through 1 FXS port and 8 FXO ports
Two 10/100/1000Mbps RJ45 ports, one with 802.3af PoE-PD support
High-performance NAT router
Lifeline support (FXS port will be hard-relayed to FXO port) in case of a 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 and strong AES encryption with security certificate per unit

SIP PoE Gigabit FXO FXS Grandstream VoIP Gateway

Ask on WhatsApp Quote for installers and contractors

Delivery within 4–10 business days across Saudi Arabia
Warranty according to the manufacturer
Tax invoice with every order
Technical support before and after purchase

Not sure this model fits your setup? Read the buying guide

Official datasheetGrandstream_HT881_Datasheet.pdf Download

Overview of Grandstream HT881

The Grandstream HT881 is an analog FXO gateway with 8 FXO ports and 1 FXS port that enables businesses of all sizes to create an easy-to-deploy VoIP solution. It connects existing PSTN lines and devices within an office to any hosted or on-premise IP PBX, supporting remote calling to and from the PSTN line, with lifeline support on power outage. Two Gigabit ports (one with 802.3af PoE-PD), advanced telephony features, automated provisioning and superb voice quality make it a suitable trunk gateway for offices, hotels, clinics, schools and branch sites that keep analog landlines while running a modern IP PBX.

Technical Specifications – Grandstream HT881

Interfaces

Lines	3 lines
Telephony Interface	HT881: 8 RJ11 FXO ports/1 RJ11 FXS
Network Interface	Two 10/100/1000Mbps RJ45 ports, one with 802.3af PoE-PD support. Note: Up to 1000Mbps in Bridge mode, up to 100Mbps in NAT mode
LED Indicators	POWER, NET1, NET2, FXS, FXO
Factory Reset Button	Yes

Voice, Fax, Modem

Audio Conferencing	3-Way Voice Conferencing Per Port
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.729, G.726-32, 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	3 REN: Up to 1km on 24 AWG
Caller ID	Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
Dial Methods	DTMF, Pulse
Disconnect Methods	Busy Tone, Polarity Reversal/Wink, Loop Current

Signaling

Network Protocols	TCP/IP/UDP, RTP/RTCP (RFC1889, 1890), HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, Telnet, STUN (RFC3489, 5389), SIP (RFC3261), SIP over TCP/TLS, SRTP, SNMP, TR-069, IMS/3GPP, IPoE
QoS	Layer 2 (802.1Q VLAN, SIP/RTP 802.1p) and Layer 3 (ToS, Diffserv, MPLS), Traffic Shaping
DTMF Method	In-audio, RFC2833 and/or SIP INFO
Provisioning and Control	HTTP, HTTPS, TFTP, SSH, TR-069, secure and automated provisioning using AES encryption, syslog

Security

Media	SRTP
Control	TLS/SIPS/HTTPS
Management	Syslog support, Telnet, SSH, Remote management using web browser

Physical

Power	PoE Input: 48V/0.5A; DC Input: 12V/1A
Environmental	Operational: 32º – 104ºF; Storage: 14º – 140ºF; Humidity: 10 – 90% Non-condensing
Dimensions	190mm x 100mm x 28mm (L x W x D)
Weight	0.46KG
Package Contents	1x HT881, 1x Ethernet Cable, 1x Quick Installation Guide (Power Supply Not Included)
Compliance	FCC/CE/RCM/IC/UKCA