Introducing the Digium TDM2401B PCI Card 0 FXS-4 FXO

http://www.digiumcards.com/tdm2401b.html

The Wildcard TDM2400P is a full-length PCI 2.2-compliant card that supports FXS and FXO station interfaces for connecting analog telephones and analog POTS lines through a PC. Using Digium's Asterisk Open Source PBX software and standard PC hardware, one can create a SOHO (Small Office Home Office) telephony environment that includes all the sophisticated features of a high-end business telephone system.

The TDM2400P takes the place of an expensive channel bank and brings the system price point to a low level. By using X400M and S400M modules with the TDM2400P, one can create a solution with support for a range of telephones. To scale this solution, simply add additional TDM2400P cards populated with modules.

http://www.digiumcards.com/tdm2401b.html