Digium TDM20B – FREE UPS GROUND SHIPPING
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The TDM400P family takes the place of an expensive channel bank and brings the system price point to a low level. By using FXO and FXS modules with the TDM400P family, one can create a solution with support for a range of telephones. To scale this solution, simply add additional TDM400P family cards populated with modules. The naming convention for the TDM bundles is as follows: TDM X Y B. Where TDM denotes that the card is TDM denotes the number of FXS modules denotes the number of FXO modules, and indicates that that this product is a bundle.