Grandstream HT881 8-Port Analog FXO Gateway
The Grandstream HT881 is an 8-port Analog FXO Gateway designed to integrate traditional analog telephone systems with modern VoIP networks. It offers a range of features suitable for businesses seeking to connect multiple locations and devices seamlessly.
Main Features
- Accommodates up to 3 SIP profiles through 1 FXS port and 8 FXO ports.
- Ensures efficient network address translation for optimal performance.
- In the event of a power outage, the FXS port is hard-relayed to an FXO port, maintaining connectivity.
- Supports three-way voice conferencing on each port, facilitating group discussions.
- Enables reliable Fax-over-IP transmissions, ensuring compatibility with fax machines.
- Automatically switches to a secondary server if the primary server connection is lost, enhancing reliability.
- Implements AES encryption with individual security certificates for each unit, safeguarding communications.
- Equipped with 8 RJ11 FXO ports and 1 RJ11 FXS port for versatile connectivity.
- Features two 10/100/1000Mbps RJ45 ports, one supporting 802.3af PoE-PD, allowing flexible network integration.
- Provides clear status indicators for power, network activity (NET1, NET2), FXS, and FXO ports.
- Supports various voice codecs including G.711, G.723.1, G.729, G.726, iLBC, and OPUS, ensuring high-quality audio.
- Offers Layer 2 and Layer 3 QoS capabilities, optimizing voice traffic and ensuring clear communications.
- Supports both PoE input (48V/0.5A) and DC input (12V/1A), providing flexible power solutions.
New
Data sheet
| Caller ID | Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID |
|---|---|
| Controls | TLS/SIPS/HTTPS |
| Dimensions | 190mm x 100mm x 28mm (L x W x D) |
| DTMF | In-audio, RFC2833 and/or SIP INFO |
| FXO Ports | 8 RJ11 FXS ports |
| FXS Ports | 1 RJ11 FXS port |
| Interface | Two 10/100/1000Mbps RJ45 ports, one with 802.3af PoE-PD support |
| Media Encryption | SRTP |
| Operating humidity | 10 – 90% |
| Operating temperature | 32º – 104ºF |
| Protocol | 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 |
| Voice and Fax 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 |
| Weight | 0.46KG |
| Power Supply | POE Input: 4 8 V / 0 . 5 A DC Input: 12V/1A |
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