Abstract: A method for eliminating the disturbance caused by a mobile station (MS) situated within a certain area 1. In order to be able to prevent disturbance caused by a mobile station reliably, the mobile station (MS) is provided with control means for the muting of the mobile station as a response to a predetermined message (S1) transmitted to the mobile station, and transmitting means (BTS) are arranged in said certain area 1 for the transmitting of said predetermined message to a mobile station situated in the area 1 in order to mute the mobile station.

Abstract: A method for performing an opinion poll with a mobile communication system having a data processing block, a plurality of recipient mobile stations comprising a wireless communication block and a display, and service center having a buffer. A query message is entered to the data processing block, a predetermined answering period is defined, and the buffer is provided with the query message. This is followed by attempting to send wirelessly the query message from the buffer substantially simultaneously to the recipient mobile stations, attempting again if necessary, and storing at least temporarily the query message at the recipient mobile stations. The query messages are then presented at recipient mobile stations and their users are allowed, at a convenient moment, to enter a written answer message to the mobile station.