Allied Telesis FXS foreign Exchange Service) Port Interface Card

AT-AR027 FXS (Foreign Exchange Service) port interface cards (PIC) allow up to eight telephones, or faxes, to be connected to a local area network when combined with an AT router. The system allows low-density, high-quality, full duplex, and inter-site voice/fax communication over IP. The AT-AR027 FXS digitises the audio signal coming from the telephone or fax, compresses it and packetizes it before passing the data to the router for transmission over the TCP/IP network.