Hi John,
You are correct about the old vouchers, as you have resigned onto a new BT Business BB product, the @btconnect.com is now your login username and password to access BT WiFI. Previously, you would have had to use a voucher which expires every 12 months and had to call the helpdesk to get it renewed as the vouchers were not linked to your broadband account.
At the moment BT Business have no there is no multiuser access for BT WiFi, only the account holder gets free and inclusive wi-fi access, everyone else needs to purchase access via www.btwifi.com, where we have a range of vouchers and subscription products available.
We provide a public wi-fi network. Whilst we do encrypt the authentication, the customer chooses to use the network knowing that it’s open. This is standard for all operators of public wi-fi in the UK and comes with the territory of providing an ‘Open’ wi-fi network for public access. To protect customers, we provide a free VPN security software download that customers can install on compatible devices.
Regards
Markp