GCS is a communication Platform for Fax, E-mail, GSM, Voice and Telex. GCS assures a complete and centralized enterprise communication. FaxServer32, SMSServer32, E-mailServer32 are the 3 main communication modules. Windows and Web clients, Windows and Web TSE clients, Lotus Notes and SMTP gateways plus all ERP's integration and API's. GCS Exchange Connector is Exchange 2000 Server certified. GCS with the Graphic Fax for R/3 module is SAP certified.