Grandstream HT881 8-Port FXO VoIP Gateway
R3,709.00 inc. VAT
The Grandstream HT881 is an 8-port analogue FXO gateway that bridges existing PSTN telephone lines with VoIP and IP PBX systems. Featuring 8× RJ11 FXO ports, 1× RJ11 FXS port, and 2× 10/100/1000 Mbps RJ45 network ports with 802.3af PoE support, it provides a compact, reliable, and cost-effective way for businesses to integrate their existing PSTN infrastructure with modern VoIP environments — with no power supply required when powered via PoE.
In stock
Description
Connect Your PSTN Lines to Any IP PBX
The HT841/881 FXO gateway series is the ideal solution for businesses of all sizes looking to create an easy-to-deploy VoIP network, seamlessly connecting multiple locations and devices within an office to any hosted or on-premise IP PBX network. The HT881 is the 8-port model in the series, making it well suited to small and medium businesses with multiple active PSTN or Telkom lines that need to remain operational alongside a modern VoIP platform.
Key Highlights
- 8× RJ11 FXO ports and 1× RJ11 FXS port
- Supports 3 SIP profiles across the FXS and FXO ports
- 2× 10/100/1000 Mbps RJ45 ports — one with 802.3af PoE-PD support
- Powered via PoE, optional PoE injector, or optional 12V power supply (sold separately)
- Designed and tested for full interoperability with leading IP PBXs, soft-switches, and SIP-based environments
NAT Router & Lifeline Support
The HT881 includes a high-performance NAT router, providing basic routing and network edge protection without the need for a separate device in smaller deployments. Critically for environments where telephony uptime is essential, lifeline support hard-relays the FXS port to an FXO port in case of a power outage — meaning a connected analogue phone can still make and receive PSTN calls even when power or internet is disrupted. This is a particularly practical feature for South African deployments where load shedding and connectivity interruptions are real-world concerns.
- Built-in high-performance NAT router for edge protection
- PSTN lifeline support — enables calls via the FXS port over PSTN in the event of power or internet outage
- Failover SIP server automatically switches to a secondary server if the primary loses connection
- Up to 1000 Mbps in bridge mode; up to 100 Mbps in NAT mode
Fax, Codec & Telephony Feature Support
T.38 fax support enables reliable Fax-over-IP transmission, while a broad codec selection ensures voice quality and compatibility across different VoIP infrastructure configurations. 3-way voice conferencing is supported per port, adding a useful collaboration capability for small teams using connected analogue handsets.
- T.38 Fax-over-IP for reliable fax transmission over VoIP
- G.711, G.723, G.726, G.729, iLBC and additional codec support
- 3-way voice conferencing per port
- Caller ID, call waiting, call transfer, call forward, and do not disturb
- Flexible dial plans for call routing control
Security & Easy Management
Strong AES encryption with a unique security certificate per unit protects all calls and account credentials. Automated and secure provisioning via TR-069 makes mass deployment straightforward, and the HT881 is compatible with GDMS — Grandstream’s free cloud management platform — for centralised configuration, firmware management, and monitoring alongside other Grandstream devices.
- AES encryption with per-unit unique security certificate
- TLS and SRTP for secure call transmission
- TR-069, HTTP/HTTPS, and TFTP provisioning options
- GDMS compatible for free centralised cloud management
- Simple web UI for standalone configuration
Proudly sold by the Ringwood Digital Store.
Additional information
| Weight | 3 kg |
|---|
Reviews
There are no reviews yet.