VoIP ATA 4 FXO,1 WLAN

1.1 Overview 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. The NET-342 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-342 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. 1.2 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 1.4 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 1.5 List of Package The following items are included in the package. 1. One NET342 main unit 2. One DC12V/500mA power adaptor 3. One Ethernet cable (3M) VoIP Gateway with 4xFXO,SIP Gateway,VoIP ATA