OPEN AT demo The goal of this demo is to show to a customer that some process power can be used in a Wavecom product (WISMO modules or derived modems Integra or Fastrack). For the demo, you have to use a modem with WISMO 2C inside and with V421 firmware inside. Download the demo firmware (app_lib.dwl) with Xmodem into the modem. The behaviour of the modem will be as follow: *when the modem receives a call, it analyses the calling number and hangs up after two rings. *if the calling number was in the SIM phonebook, the modem calls back this calling number. *if the calling number was not in the SIM phonebook, the modem does not call back anyone.