The audioconference system Polycom is mainly used for audio conferences between separate rooms and sites via the customer’s internal network (IP) or via analogue or digital telephone lines (RNIS/ISDN). Polycom is without doubt the market leader in audio conferencing and remote video conferencing. The system is normally made up of a ‘soundstation’ star for meetings of maximum 10 participants, an “analogue or digital soundstation” with 2 extended microphones for meetings of maximum 40 participants, or audio matrixes with DSP processor, Soundstructure-type cancellation of echo and numerous microphones either fitted into the table or visible, for specific audio conferencing applications in specific environments.