You will have to top up at an Orange booth or a post office, as topping by phone or the internet requires an Israeli credit card.
The BigTalk IVR can be changed to English by calling *111. To change the voice mail language call *159.
The7c/min international calls are similar to callback. for the USA call *313 , when the system answers dial the US number (including the international prefix and than #.
The rate is NIS 0.29/min and includes the air time.