... market demand the development of a well-Intelligent Voice Gateway;The is Modular design of the product,Integrates all ... extension modules Constitute,Expansion modules as needed, matching FXS and FXO interfaces,Uses the powerful performance processing IBM ... Interface: RJ11, CONSOLE port, baud rate 38400HzSignaling and controlSignalling: FXS, FXO Loop StartBand signaling: DTMF (TIA464A), the user can ...