Developed for small businesses, SOHO and residential IP telephony applications, the WSS4 ATA is an integrated VoIP device that provides reliable and cost efficient access methods flexible for deploying converged communication solutions for network operators and enterprises as well. WSS4 is designed as a compact unit with 2 or 4 FXS/FXO ports, 1 WAN port, and 1 PC port, which allows users to apply it as an N-to-1 system capable of providing versatile solutions by connecting analog phone, fax and POS machine, IP telephony and PSTN. Comprehensive Feature Set with Intelligent Engine As an intelligent gateway running on embedded Linux operating system, WSS4 is compatible with many highlighted features such as call forward, call transfer, 3-way conference, caller ID, DND, color ringback, forking, automatic routing, digitmap, PSTN failover, and much more to provide a complete and highly reliable VoIP solution applicable to most scenarios. Easy Operation and Management With a simple-to-use web-based configuration utility, WSS4 allows users to perform routine maintenance, such as parameter configuration, data packet capture, call status monitoring, and firmware upgrade. The device also supports remote management through Auto Provisioning or TR069/ SNMP, which allows users to remotely upgrade the WSS4 firmware, change the configuration parameters, and download log files. High Interoperability The WSS4 is perfectly interoperable with legacy telephone terminals, SIP servers, and IPPBXs.