Description

Grandstream HT881 Analog FXO Gateway Oman

The Grandstream HT881 Oman FXO gateway seamlessly integrates analog phone systems with VoIP networks, providing a smooth communication solution for businesses. It caters to businesses of all sizes by enabling effortless connections between analog phones and VoIP networks, both on-premise and hosted IP PBX systems. With its FXO and FXS ports, this Grandstream HT881 Oman gateway allows users to make and receive calls over the traditional phone network (PSTN). Additionally, it offers advanced telephony features such as call transfer, call forwarding, and call waiting. With its simple setup and superior voice quality, the Grandstream HT881 Oman is the ideal VoIP gateway for businesses, regardless of their scale.

Features

Supports 3 SIP profiles through 1 FXS port and 4/8 FXO ports
High-performance NAT router
Lifeline support (FXS port will be hard-relayed to FXO port) in case of a power outage
3-way voice conferencing per port
Automated & secure provisioning options using TR069
Supports T.38 Fax for reliable Fax-over-IP
Failover SIP server automatically switches to secondary server if the main server loses connection
Strong AES encryption with security certificate per unit

Specifications

Interfaces

Telephony Interface : 8 RJ11 FXO ports/1 RJ11 FXS
Network Interface : Two 10/100/1000Mbps RJ45 ports, one with 802.3af PoE-PD support
LED Indicators : POWER, NET1, NET2, FXS, FXO
Factory Reset : Button Yes

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 : SRTP
Control : TLS/SIPS/HTTPS
Management : Syslog support, Telnet, SSH, Remote management using web browser

Physical

Universal Power Supply
- POE Input : 4 8 V / 0 . 5 A
- DC Input : 12V/1A
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