Grandstream HT881 Analog FXO Gateway — 8 FXO Ports, 1 FXS Port, GigE PoE NAT Router

Save on the Grandstream HT881 (GS-HT881) with Reef Telecom's industry-leading 10-year warranty and free shipping on orders over $300. This 8-port analog FXO gateway enables businesses to seamlessly integrate existing PSTN lines with any hosted or on-premise IP PBX network, converting SIP/RTP IP calls into conventional PSTN calls for a reliable, easy-to-deploy VoIP solution.

Key Specifications

• 8 RJ11 FXO ports and 1 RJ11 FXS port with 3 SIP profile support
• 2 GigE (10/100/1000 Mbps) Ethernet ports with PoE support
• High-performance built-in NAT router
• Lifeline support — FXS port hard-relays to FXO port during power outages for emergency PSTN calling
• T.38 Fax-over-IP for reliable fax transmission
• 3-way voice conferencing per port
• Failover SIP server — automatically switches to secondary server if primary loses connection
• AES encryption with per-unit security certificate
• Automated provisioning via TR-069, HTTP, HTTPS, TFTP, and SSH
• Replaces legacy Grandstream GXW4108

What's in the Box

• 1x Grandstream HT881 FXO Gateway
• 1x Ethernet Cable
• 1x Quick Installation Guide
• Note: Power supply not included — unit is PoE capable

The Grandstream HT881 is ideal for small to mid-size businesses, multi-location offices, and organizations looking to bridge traditional analog phone systems with modern VoIP infrastructure. Compatible with all major SIP-based IP PBX platforms. Backed by Reef Telecom's 10-year warranty for total peace of mind.

Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.