Depending on the size and nature of your meeting, you will require either simultaneous or consecutive  interpretation.

Simultaneous interpretation is most frequently used. The  interpreters sit in a sound-proof and ventilated booth with a clear view of the meeting room, listen to  the speaker through headphones and interpret the speech as it unfolds, i.e.  simultaneously, into the other conference languages.

This requires high levels of  concentration and interpreters therefore need to alternate every 20 to 30  minutes. Simultaneous interpretation is ideal for multilingual meetings, events  with a large number of participants and for the broadcasting media.

Consecutive interpretation: the interpreter sits at the  table with the delegates or on the platform next to the speaker and interprets  the speech into the required language once the speaker has finished speaking.  The interpreter takes notes to give an accurate rendering of the speech, which  may be delivered in sections of up to approximately 15 minutes each.

Consecutive interpretation is suitable for  meetings with fewer languages or for formal occasions such as dinners or when  it is not possible to install technical equipment such as on missions in the  field.

Whispering:

When only one or two  delegates require assistance, the interpreter can sit next to them and whisper  into the required language. This technique is strenuous and tiring for  listeners and it is only appropriate for short meetings involving a very small  number of languages.