This piece from BBC News  demonstrates how the residents of Doerentrup
can activate the street lighting via mobile phone. This requires them to
call a specific number and then use an access code to switch a specific
lighting array for the street they want lit-up. Given that this is targeted
at older people who may well have memory issues, it seems peculiar to force
them to remember a (series of) 6-digit access code(s). A case where voice
recognition seems a better option?