BIPT notices that businesses and private persons install equipment enhancing the reception of GSM or UMTS signals (called GSM or UMTS repeaters), example given in areas where mobile coverage is not experienced as optimal.
This equipment is available on the market and can also be purchased through Internet, which may create the impression that its use is free and not subject to regulation. However, only mobile operators can install such repeaters without causing interference.
To that effect the GSM or UMTS operators have exclusive rights to the frequencies by virtue of the licences they have obtained.