In many customer service areas there is a need to separate the customer from the personnel with protective glass panels. The use of protective glass is often motivated by a high risk for robberies or the need to prevent spreading of infections. One major drawback of the protective glass however, is that it also mutes all sounds and makes conversations through the glass difficult. To provide a solution for this problem, TELEANALYS has developed the intercom system PARCOM. The PARCOM system makes it possible for customer and personnel to maintain a natural, two-way, conversation as if the protective glass was not there at all.