Just a couple of catches. Firstly, you must be a Bezeq customer (I am) and secondly, you donate 1-2 Mb of your home wi-fi bandwidth to the service accessed by others. Your home effectively becomes a hotspot. 10,000 have already signed up and I’m thinking seriously about joining them.
http://www.timesofisrael.com/bezeqs-end-run-around-cellphone-companies-a-free-public-wifi-hotspot-network/
http://www.globes.co.il/serveen/globes/docview.asp?did=1000772193&fid=1725