https://www.bt.com/wifi/secure/index.do?s_cid=con_FURL_btfon
All BT Broadband customers get free, unlimited wi-fi. In order to use BT Wi-fi, your BT home hub needs to be opted in to share your home broadband with other members of the BT Wi-fi community. This is what creates a wi-fi network for you to use when you are out and about.
All BT Total Broadband or BT Infinity customers who have joined since March 2009 will already be members of BT Wi-fi unless they have opted out.
Should you choose to opt out you will have to reset your router a few days after opting out to stop your router being available on the BT Wi-Fi network
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