overview
The HT881 FXO gateway enables businesses of all sizes to create an easy-to-deploy VoIP solution.
These FXO gateways offer the ability to seamlessly connect multiple locations and all 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 to and from the PSTN line.
Advanced telephony features, easy automated provisioning and superb voice quality allow the HT881 to be the ideal VoIP gateway for businesses.
specifications:
Interfaces
Telephony Interface:
HT881: 8 RJ11 FXO ports/1 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: 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.726-32, 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
Dial Methods: DTMF, Pulse
Disconnect Methods: Busy Tone, Polarity Reversal/Wink, Loop Current
Signaling
Network Protocols: 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
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
Package Contents: 1x HT841/HT881, 1x Ethernet Cable, 1x Quick Installation Guide (Power Supply Not
Included)
Compliance: FCC/CE/RCM/IC/UKCA
