Further information for Digium 1TDM2460BF - PCI 24 port a / 24x FXS card (TDM2460B)
Digium (TDM2460B) 2.2 PCI card with full installation length with 6X QuadFXS modules, and up to six modules can be installed on a quad TDM2400P card, No echo cancellation, mixed layout