SOYO introduces the ultimate IP telephony solution for small business. The N400S makes it possible for business to make domestic and international long-distance calls without paying hundreds oreven thousand of dollars.It is an advanced IP telephony device which bridges any IP network with the Public Switch Telephony Network (PSTN) and sends your analog voice or fax through pocketsize IP network making Voice over Internet Protocol (VoIP) or Fax over Internet Protocol (FoIP) a possibility. The N400S is the perfect solution for telecom carriers VoIP wholesale dealers corporations small and medium-sized companies overseas companies public phone booth and more. It has 4 individual analog phones ports (FXS) which enables end users to connect up to 4 traditional phones and make 4 phone calls simultaneously.* Dynamic Jitter Buffering * Voice Activity Detection * Automatic Delay Reconstruction -- SPECIFICATIONs ------------------------------------PROTOCOLS - H.323v4 RTP/IP T.38 faxCONNECTORS - (4) Analog FXS ports (connect to common phone or fax)(1) RS-232 Serial Console port(2) 10BaseT/100BaseTX/RJ45 portsAUDIO CODECs - G.711 a/u G.723.1 G729G.168 Automatic Echo CancellationMANAGEMENT - Console Telnet or WebMOUNTING - Desktop/Wall MountPOWER- 110220 VAC 15 WSIZE - 8.8w x 1.6h x 7.6dwww.soyousa.com