Star trek comes alive at Seattle Library

Seattle's new central library and its librarians have cool vocera communication system. Push a button on your chest, say a name and you are talking wirelessly via wifi to your colleague at the other side of ship.. i mean library. The system helps librarians to talk to each other or to a client when they are looking for information. The librarian I talked to said, that the system uses voice recoqnition and voip technology. The technology has been previously used in sick bays.. I mean hospitals. Apparently you can add wifi positioning to the system. Engineering? I need more power. Is there anybody there?