Media definition

I'm reading 'Always Already New'. And read...

"Media are socially realized structures of communication, where structures include both technological forms and their associated protocols, and where communication is a cultural practice, a ritualized collocation of different people on the same mental map, sharing or engaged with popular ontologies of representation"

So we can say a medium is 'The thing' plus the behaviour of using it. The telephone and the Internet are media. But using the word 'media', without defining the context, (for instance, the telephone in 1890 had different protocols than the telephone in 2007), will create misperceptions.