8 channel FXS VoIP gateway,ATA gateway

The HT-882 VoIP gateway is designed as a compact, high performance, and low cost VoIP Analog Terminal Adaptor (FXS Gateway).It comes with 8 FXS ports to interface with traditional analog phone sets or PBX trunk lines for VoIP communications.The HT-882 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-882 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 Static IP support Switch mold support support DHCP,PPPOE Open Standard VoIP Protocols (ITU H.323 V4 and IETF SIP V2) Two 10/100 Ethernet for WAN / LAN connections Peer-to-Peer IP Calls 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 Eight RJ-11 FXS port for traditional phone set or PBX's trunk line LEDs for Power, Ready, Status, WAN, PC, FXS Call Forward, Call Hold, Call Transfer Dial Plan Caller ID 3 times re-password Billing support Keyboard setting IP voice enrollment

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

Supported Standards ITU: H.323 V4, H.225, H.235, H.245, H.450 RFC 1889 RTP/RTCP RFC 2327 SDP RFC 2833RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals RFC 2976SIP INFO Method RFC 3261 SIP RFC 3264 Offer/Answer model with SDP RFC 3515 SIP REFER Method RFC 3842A Message Summary and Message Waiting Indicator RFC 3489Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs) RFC 3891SIP "Replaces" Header RFC 3892SIP Referred-By Mechanism draft-ietf-sipping-cc-transfer-04   Session Initiation Protocol Call Control - Transfer Codec: G.711 (A/µ law), G.729A/B, G.723.1 DTMF: RFC 2833, In-band DTMF, SIP INFO

Hardware Specifications Processor: ARM9E 133MHz DSP: VPDSP101 95MHz Memory: RAM 16MB/ Flash 4MB Power: Input AC100V ~ 240V, output 24VDC / 300mA Power consumption: 12W maximum Network card: 100/10Base-T x2 LED: Operation and lines light RJ11:eight 24V feed 48V ring Operating temperature: 10°C to 40°C (32°F to 104°F) Storage temperature: 0°C to 50°C (32°F to 122°F) Working Humidity: 40% ~ 90% Not congealed Weight: 640 g (1 lb) (Including AC/DC Adapter) Warranty: one year