VoIP FXO Gateway HT-322

Specifications

The HT-322 is designed as a compact, high performance, and low cost FXO Gateway.    

 It features superb   audio   quality,   reliable   FXO   detection,   rich functionalities, and high-level integration. The FXO detection is optimized to avoid the hold up of the PSTN line when the other party is disconnected.  This has been one of the key issues in the design of FXO gateway.  The incoming PSTN Caller ID is also transmitted to the VoIP user for more user friendly operation.  The HT-322 is a full featured FXO gateway with a second Ethernet port for connection with another network device.   It is an ideal solution for VoIP to PSTN termination in both SME and SOHO environment.

A VoIP FXO (Foreign Exchange Office) Gateway bridges the VoIP and PSTN networks  by  enabling  both  voice  and  fax communications. It  offers  an  FXO interface to a traditional telephone line (PSTN) and an WAN Ethernet port interface to the IP Network. A connection can be initiated either from a VoIP user to a PSTN user or from a PSTN user to a VoIP user. It is a key component for building a hybrid communication system with connections to both VoIP and PSTN networks. The key advantage is to make use of the IP network and local PSTN networks to save on international / long-distance phone expenses.

Protocols

TCP/IP V4 (IP V6 auto adapt) ITU-T H.323 V4 Standard H.225 V4 Standard

H.245 V7 Standard

H.235 Standard（MD5，HMAC-SHA1）

ITU-T G.711 Alaw/ULaw, G.729A, G.729AB, and G.723.1 Voice Codec

RFC1889 Real Time Data Transmission Proprietary Firewall-Pass-Through Technology SIP V2.0 Standard

Simple Traversal of UDP over NAT (STUN) Web-base Management

PPP over Ethernet (PPPoE)

PPP Authentication Protocol (PAP)

Internet Control Message Protocol (ICMP) TFTP Client

Hyper Text Transfer Protocol (HTTP)

Dynamic Host Configuration Protocol (DHCP) Domain Name System (DNS)

User account authentication using MD5

Out-band DTMF Relay: RFC 2833 and SIP Info

 Hardware Features

ARM9E Processor for high performance

DSP for voice codec and voice processing

Two 10/100M Based Ethernet ports for WAN/LAN connections. LED status indicators

One FXS port

Ethernet Bridge

 Software Features

LINUX OS

Built-in HTTP for accessing internal parameters

PPPoE dial-up

Network Address Traversal (NAT) and Router functions

DHCP Client

DHCP Server

Firmware On-line upgrade

Phone Book

Caller ID (PSTN to VoIP) Multiple Language Support

List of Package

The following items are included in the package.

1.   One HT-322 main unit

2.   One DC12V/500mA power adaptor

3.   One Ethernet cable (3M)