The TDM-GSM is a plug in module designed for the TDM-400P Wildcard Boards from Digium.The GSM module plugs into an existing FXO/FXS port and emulates the X100M FXO card transparently.

This GSM Solution emulates an FXO Module and translated the FXO commands to the GSM protocol at a hardware level, FXO modules can be removed and replaced with GSM modules in a plug and play fashion. The FXO line interface integrates into the GSM Module ensuring a simple easy to use platform. Using the existing FXO drivers means there is no recompiling, training or support issues, as existing tested software drivers can be used to drive the GSM Modules.

This product promotes substancial cost saving compared to traditional Least Cost Routing Equipment where and FXO Board and an external analog router are required. The Typical recommended retail price of this product is below $160/€130