For small meetings, the interpreter takes notes and translates these into another language after a delegate has finished speaking.
Interpreters sit in a booth and listen to the language spoken in the conference room through earphones. They translate in real time into other languages through a microphone. People in the conference room listen to the translation in the language of their choice through portable headphones. A sound engineer will install the booths and make the right connections.
For a maximum number of two people, an interpreter whispers simultaneous translation sitting between or behind the delegates.