Grandstream HT881 8-Port FXO VoIP Gateway with 1 FXS Port for SIP IP PBX
Grandstream HT881 8-Port FXO VoIP Gateway with 1 FXS Port for SIP IP PBX
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๐ Connect 8 Analog PSTN Lines Connect up to eight analog telephone lines to a SIP-based IP PBX for an easy migration to VoIP.
๐ Business Continuity with Lifeline Support The dedicated FXS port remains connected to an FXO port during a power outage for uninterrupted calling.
๐ Gigabit Network Connectivity Dual Gigabit Ethernet ports with PoE-PD support simplify deployment while providing fast and reliable networking.
๐ก๏ธ Secure and Reliable Communication AES encryption, TLS/SRTP support, and automatic SIP server failover help maintain secure and dependable voice services.
๐ Reliable Fax over IP T.38 Fax support enables dependable fax transmission over IP networks for business communication.
The Grandstream HT881 is an 8-port FXO VoIP gateway designed to connect analog PSTN lines to SIP-based IP PBX systems. It features one FXS port for lifeline support, dual Gigabit Ethernet ports with PoE-PD, T.38 Fax over IP, and secure provisioning. Compatible with hosted and on-premises SIP IP PBXs, it is an ideal solution for businesses upgrading to VoIP while continuing to use existing analog telephone infrastructure.
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| Specification | Details |
|---|---|
| Brand | Grandstream |
| Model | HT881 |
| Product Type | Analog FXO VoIP Gateway |
| FXO Ports | 8 ร RJ11 FXO |
| FXS Ports | 1 ร RJ11 FXS |
| SIP Profiles | Supports 3 SIP Profiles |
| Network Ports | 2 ร 10/100/1000Mbps RJ45 Gigabit Ethernet (One with IEEE 802.3af PoE-PD) |
| Operating Modes | Bridge Mode up to 1000Mbps, NAT Mode up to 100Mbps |
| Router | High-Performance NAT Router |
| Power Outage Support | Lifeline Support (FXS hard relayed to FXO) |
| Voice Codecs | G.711, G.723.1, G.729, G.726-32, iLBC, Opus |
| Fax Support | T.38 Group 3 Fax Relay with G.711 Fax Pass-through |
| Conference Calling | 3-Way Voice Conference Per Port |
| Caller ID | Bellcore Type 1 & 2, ETSI, BT, NTT, DTMF-based CID |
| DTMF Methods | In-audio, RFC2833, SIP INFO |
| Security | SRTP, TLS, SIPS, HTTPS, AES Encryption |
| Management | Web Browser, SSH, Telnet, Syslog |
| Weight | 0.46 kg |
| Package Contents | HT881, Ethernet Cable, Quick Installation Guide (Power Supply Not Included) |
| Country of Origin | China |
| Warranty | 1 Year Manufacturer Warranty |