Marc, phone.prg could be a starting point. Best regards, Otto PS:comment modem function to get it running ACTIVATE DIALOG oDlg ; ON INIT ( oDlg:SetSize( 0, HALF_SIZE ),; oHangDown:Hide(), oLocalNum:Hide(),; // If( ! lInitModem(), oDlg:End(),),; EnableCommNotification( nComm, oDlg:hWnd, IN_BUFFER, IN...