Digium Wildcard TDM2400P is a full-length Asterisk PCI 2.2-compliant card for connecting analog telephones and analog POTS lines through a PC. It supports a combination of up to 6 FXS and/or FXO modules for a total of 24 lines. Use the telephony card selector to identify a card that fits your requirements.
Using Digium's Asterisk® Open Source PBX software and standard PC hardware, one can create a telephony environment that includes all the sophisticated features of a high-end business telephone system.
Using an industry-standard bursting, bus-mastering Asterisk PCI interface chip that is found within millions of PC systems worldwide, and Digium VoiceBus™ technology, the TDM2400P eliminates the requirement for separate channel bank and T1 interface cards, at an industry-leading price. The quad-FXO and quad-FXS modules are interchangeable, allowing the creation of any combination of interfaces. The optional hardware echo cancellation module provides 1024 taps (128 milliseconds) of echo cancellation for superior echo cancellation on both FXO and FXS interfaces. Scaling of this solution is accomplished by adding additional TDM2400P cards.