HT-842R ATA VoIP Gateway 4 Port FXS VoIP

The HT-842R is designed as a compact, high performance, and low cost Analog Terminal Adaptor (FXS Gateway). It comes with 4 FXS ports to interface with traditional analog phone sets or PBX trunk lines for VoIP communications. The HT-842R is a full featured FXS gateway and is designed for easy installation and configuration. It
Supports the two most widely used Open VoIP Standards (SIP and H. 323). This allows the HT-842R to interoperate seamlessly with softswitches or IP PBXs made by various vendors. Its high performance offers toll quality voice, flexible networking, and feature-rich call functions. It is an ideal low cost solution for SME environment where multiple lines are required.

Key Features
Open Standard VoIP Protocols (ITU H. 323 V4 and IETF SIP V2)
Single or Multiple Server Registrations
Peer-to-Peer IP Calls
Two 10/100 Ethernet for WAN / LAN connections
Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer
Line Echo Cancellation
VLAN and QoS support
NAT Transversal and Router functions
Voice prompts, HTTP Web, Auto Provision support for configuration and updates
Highly stable embedded Linux operating system in high performance ARM 9 Processor

Basic Features
Four RJ-11 FXS ports for traditional phone sets or PBX's trunk lines
LEDs for Power, Ready, Status, WAN, PC, FXS ports
Call Forward, Call Hold, Call Transfer
Dial Plan
Caller ID

Enhanced Features:
Dynamic selection of codec
Advanced jitter buffer
Automatic traversal of NAT and firewall
VLAN / Qos
Router
Echo cancellation for Speakerphone
Comfort noise generation (CNG)
Voice activity detection (VAD)
Auto provisioning (requires auto provisioning server)
On line firmware upgrade
Multi-language support: English and Chinese