| 摘要 |
PCT No. PCT/FI94/00120 Sec. 371 Date Jan. 3, 1996 Sec. 102(e) Date Jan. 3, 1996 PCT Filed Mar. 30, 1994 PCT Pub. No. WO94/23525 PCT Pub. Date Oct. 13, 1994A group call method, a system controller and a subscriber station in a radio system comprising a plurality of base stations and subscriber stations. In order for a subscriber station to be able to select the group call in which it will participate from among a plurality of group calls while participating in a first group call, group call data are transmitted to the subscriber station during the first group call, by means of which data the subscriber station can engage in another ongoing group call, whereby the subscriber station continues to participate in the first group call or, if it desires, selects another group call from among the group calls whose group call data have been transmitted to the subscriber station and whose group call identifiers are simultaneously displayed on the display of the subscriber station.
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