the manual seems to indicate that the WiFi can be used to connect to a WLAN or it can be used to provide an access point over which other devices can connect.  Is it possible to do both at once?  We would like to have the option for the end-customer to connect to an existing WLAN, but also establish a private WLAN access point to which only our own devices can connect.  Other manufacturers refer to this as WAN over WiFi.