Another municipal WiFi network, but this time, not for free. BBC NEWS | Technology | Switch on for Square Mile wi-fi But is there really that much demand for open-air surfing? After all, staring at a laptop screen in the sunshine is not a great experience – especially in an area where so many cafes have wi-fi access. The network’s backers think one of the big attractions will be the ability to use wi-fi enabled phones to make cheap calls using Skype or other internet telephony services. It’s hard to see why well-paid City workers would bother with the extra effort needed to make a wi-fi call – but the City of London Corporation believes it will prove attractive to migrant workers on construction sites.