Grand Stream Analog FXO Gateway, 8 RJ11 FXO
ports X 1 RJ11 FXS \ HT881

The Grand stream HT881 Analog FXO Gateway is designed to bridge this gap effectively, offering a powerful and flexible solution for enterprises seeking to unify their communications infrastructure.
Overview
The Grand stream HT881 is a high-performance analog FXO gateway that features 8 RJ11 FXO ports and 1 RJ11 FXS port. Designed for businesses of all sizes, it enables the connection of analog phone lines or legacy PBX systems to IP-based phone systems or VoIP services. This makes it ideal for organizations that want to maintain their existing telephony infrastructure while taking advantage of the benefits of VoIP.
Key Features
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8 FXO Ports: The HT881 supports up to eight analog PSTN lines through FXO interfaces, allowing for reliable inbound and outbound calls via traditional telephone lines.
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1 FXS Port: An additional FXS port allows direct connection of an analog phone, fax machine, or legacy device.
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High Voice Quality: Equipped with advanced voice processing technologies such as echo cancellation, jitter buffer, and adaptive packet delay, the device ensures crystal-clear audio.
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Secure & Reliable: Supports TLS/SRTP encryption, automated provisioning, failover, and strong protection against SIP-based threats.
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Easy Management: Web-based GUI, TR-069, and encrypted XML configuration make device management straightforward and secure.
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Flexible Compatibility: The HT881 is interoperable with a wide range of SIP-based IP PBXs, softswitches, and VoIP platforms.
Applications
The HT881 is suitable for a variety of use cases, including:
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SMBs and Enterprises: Connect legacy PBXs to modern VoIP systems.
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Hotels and Hospitals: Seamlessly integrate analog room phones with IP-PBX solutions.
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Call Centers: Expand capacity by connecting multiple PSTN lines.
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Service Providers: Deliver flexible analog-to-IP solutions to customers without needing to replace existing equipment.
Benefits
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Cost-Effective Migration: Reduce costs by leveraging existing analog infrastructure while transitioning to VoIP.
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Scalability: Add or remove analog lines based on evolving business needs.
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Business Continuity: Ensure communication continuity during IP network outages by routing calls over PSTN.
Conclusion
The Grand stream HT881 Analog FXO Gateway is a robust and versatile solution that bridges traditional and IP telephony. With 8 FXO ports, 1 FXS port, and support for enterprise-grade features, it provides a cost-effective path for businesses to modernize their communications infrastructure without sacrificing reliability or voice quality. Whether you’re upgrading a legacy system or expanding VoIP capabilities, the HT881 offers the performance and flexibility needed for success.
Manufacturer’s Product Code | HT841 |
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 |
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, 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 |
Disconnect Methods | Busy Tone, Polarity Reversal/Wink, Loop Current |
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 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 |
Universal Power Supply | POE Input: 48 V / 0.5 A; DC Input: 12V/1A (not Included) |
Environmental | Operational: 32º – 104ºF; Storage: 14º – 140ºF; Humidity: 10 – 90% Non-condensing |
Dimension and Weight | 190mm x 100mm x 28mm (L x W x D); Weight: 0.46KG |
Compliance | FCC/CE/RCM/IC/UKCA |
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