Grandstream HT881 Analog FXO Gateway

About the Grandstream HT881

The Grandstream HT881 Gateway enables businesses of all sizes to create an easy to deploy VoIP Solution. The HT881 offers the ability to seamlessly connect multiple locations and devices within an office to any hosted or on premise IP PBX network to make deployments as easy as possible.

The HT881 includes FXO and FXS ports to support remote calling and from the PSTN line. Advanced telephony features, easy automated provisioning and superb voice quality allow the Grandstream HT881 to be the ideal VoIP Gateway for businesses.

Features

• Supports 3 SIP Profiles through 8 x RJ11 FXO Ports and 1 x RJ11 FXS Port
• High Performance NAT Router
• Lifeline Support (FXS Port will be Hard-Relayed to FXO Port) in case of Power Outage
• 3 Way Voice Conferencing Per Port
• Automated and Secure Provisioning Options using TR069
• Supports T.38 Fax for Reliable Fax over IP
• Failover SIP Server Automatically Switches to the Secondary Server if Main Server Loses Connection
• Strong AES Encryption with Security Certificate per Unit
• PoE Input - 4 8 V / 0 . 5 A

Specifications:

Interfaces

• Telephony Interface -  8 x RJ11 FXO Ports / 1 x 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

Voice, Fax, Modem

• 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

Signaling

• 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 - STRP
• Control - TLS / SIPS / HTTPS
• Management - Syslog Support, Telnet, SSH, Remote Management using Web Browser

Dimensions and Weights

• Dimensions - 190mm x 100mm x 28mm
• Weight - 0.46kg

Package Contents

• 1 x Grandstream HT881 FXO Gateway
• 1 x Ethernet Cable
• 1 x Quick Installation Guide