Digium Quad S400MF FXS Module is used in conjunction with card Digium TDM8xx, AEX8xx, TDM24xx, AEX24xx to activate 4 FXS interfaces
Digium Quad S400MF FXS Module is used in conjunction with card Digium TDM8xx, AEX8xx, TDM24xx, AEX24xx to activate 4 FXS interfaces