4 FXS VOIP adapter

4 FXS VOIP gateway,VOIP adapter Have encryption built-in; Support VPN; Have router fuction; Can Be Customized;

 

 

HT-842R (4 FXS VOIP gateway,VOIP adapter )

The HT-842R is designed as a compact-size, high-performance and low-cost Analog Terminal Adaptor (FXS Gateway). It comes with 4 FXS ports to connect traditional analog phone or PBX trunk lines for VoIP communications.

With easy installation and configuration, this gateway also supports 2 mostly used open VoIP standards (SIP and H.323), which makes it work seamlessly with soft switches or IP PBXs made by various vendors.

Offering high-quality voice, flexible networking and rich functions, it is an ideal low-cost solution for small and medium enterprises where multiple VoIP lines are required.

Overview

Functions & Features

Supports open standard VoIP protocols (ITU H.323 V4 and IETF SIP V2);

Supports registration of single or multiple servers;

Supports peer-to-peer IP calls;

Provides two 10/100 Ethernet port for WAN/LAN connections;

High voice quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer;

Supports echo cancellation for speaker;

Supports VLAN and QoS;

Supports automatic transversal of NAT and firewall;

Supports voice prompt, HTTP web, and auto-provisioning (* auto-provisioning server required);

Highly stable embedded operating system of Linux with ARM9 processor;

Supports call forward, call hold and call transfer;

Supports dial plan and caller ID;

Supports dynamic selection of codec;

Supports router function;

Comfort noise generation (CNG);

Voice activity detection (VAD);

Web-based interface: provides parameters setting, multi-layer password, online firmware upgrade, 4-level volume adjustment, voice-speaking IP, toll charging, multi-area prompt tone

Specifications

Processor	ARM9 133MHz
DSP	VP-101-4 196MHz
Memory	RAM: 16MB, FLASH: 4MB
Interface	Power interface: AC220V±15% to DC 24V/500mA Ethernet interface for LAN and WAN: 2 RJ45 ports, 10/100Base-T FXS interface: 4 RJ11 ports (feed at 24V / ring at 48V) LED indicators: Power, Run, LAN, PC and FXS ports
Power Consumption	Max. 8W
Voice Characteristics	Supports G.168 algorithm for echo cancellation (16ms) Supports G.723.1, G.711 (A/µ law), G.729A/B, PLC, CNG, and VAD Supports Package Jitter Algorithm
LAN Port Characteristics	Supports DHCP, PPPoE, and Static IP Firewall transversal: relay (* relay server required) or port forwarding Network time: NTP/SNTP 10/100Base-T: 10M/100M adaptive
PC Port Characteristics	Supports Static IP and switch mode DHCP service: supports max. 200 clients 10/100Base-T: 10M/100M adaptive
Supported H.323 Protocols	ITU-T: H.323 V4, H.225, H.235, H.245 and H.450 RFC-1889: RTP/RTCP Supports IP-to-IP
Supported SIP Protocols	RFC 2327: Session Description Protocol (SDP) RFC 2833: RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals RFC 2976: SIP INFO method RFC 3261: Session Initiation Protocol (SIP) RFC 3264: Offer/Answer model with SDP RFC 3265: SIP – Specific Event Notification RFC 3515: SIP REFER method RFC 3842: A message summary and message waiting indication RFC 3489: Simple Traversal of UDP through NATs RFC 3891: SIP “Replaces” Header RFC 3892: SIP Referred-By mechanism draft-ietf-sipping-cc-transfer-04: SIP call control – transfer
Operating Temperature	-20°C ~ +45°C
Relative Humidity Range	40% ~ 90% (non condensing)
Dimensions	167mm X 112mm X 31mm / 275mm X 170mm X 65mm (packing)
Weight	230 g / 530 g (packing)

4 FXS VOIP adapter