Digium 1A8B04F PCI-E Card - 4 FXS, 4 FXO - Echo Cancellation

Digium 1A8B04F 8 Port Modular Analog PCI-Express X1 Card with 4 Station & 4 Trunk Interfaces & HW Echo CanProduct includes:1x - Digium 1A8B00F 8 Port Modular Analog PCI-Express X1 Car... (1A8B00F)1x - Digium S400M - Quad Channel Station (FXS) Module (1S400MF)1x - Digium X400M - Quad Channel Trunk (FXO) Module (1X400MF)1x - Digium 1VPM032LF Thirty Two (32) Channel Hardware Ech... (1VPM032LF)The A8 Series of analog cards supports up to eight (8) connections per card in your Asterisk system. Using Digium's advanced quad-port interface modules, A8 Series cards can scale from one (1) to eight (8) ports.Features: One (1) - eight (8) analog ports PCI or PCI Express bus architectures Combine line (FXO) and station (FXS) modules Accepts up to two (2) quad-port modules or up to 4 single-port modules Optional DSP -based carrier grade echo cancellation module Loop Start or Kewl Start Signaling Digium patented VoiceBus technology for better audio Available in half-length PCI and PCI Express form factors 5-year warranty Compatibility: Asterisk - DAHDI 2.8 or later Switchvox 5.8.1 or later