


Grandstream 8 CO Analog Line Gateway HT881
 $167.95  -  $201.40 
Tags: 
- Adds 8 analog line ports (POTS/CO)
 - Supports caller ID and 3-way conference calls
 - Supports T.38 Fax for reliable Fax-over-IP
 
 Warranty 
 Product Details 
The Grandstream HT881  is an analog gateway designed to connect analog lines from the PSTN (POTS/CO) to your Grandstream phone system. 
The HT881 gateway enables businesses to create a cost-effective hybrid IP and analog telephone system that offers the benefits of VoIP communications, while preserving investments made on existing analog telephone lines.
The Grandstream HT881 comes equipped with 8 RJ11 analog line (FXO) ports and supports telephony features such as caller ID, call waiting, transfer, and 3-way conferencing.
Telephony Interface
- (8) x RJ11 FXO ports
 - (1) x RJ11 FXS
 
Network Interface
- (2) x 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
 
Telephony Features
- Caller ID display or block
 - Call waiting
 - Flash
 - Blind or attended transfer
 - Call forward
 - Call 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
 
Caller ID
- Yes, supported
 
Dial Methods
- DTMF
 - Pulse
 
Disconnect Methods
- Busy Tone
 - Polarity Reversal/Wink
 - Loop Current
 
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
 
Security
- TLS/SIPS/HTTPS
 - SRTP
 
Management
- Syslog support, Telnet, SSH, Remote management using web browser
 
Universal Power Supply
- POE Input: 48V / 0.5A
 - DC Input: 12V/1A 
 
Dimension and Weight
- 190mm x 100mm x 28mm (L x W x D)
 
Package Contents
- HT881
 - Ethernet Cable
 - Quick Installation Guide
 - Power Supply Not Included