Digital mobile communication system

摘要: The present invention relates to a digital mobile communication system in which stations (MS) and the fixed network comprise speech coders. coders of are located remote from base (BTS) transcoders (TRCU). In MMC calls, however, controlled operate so that frames received first station forwarded with minor modifications through pair tandem connected second station, without carrying out any encoding or decoding transcoders. Consequently, coding is only carried stations, parameters simply passed network, resulting significant improvement quality as compared conventional coding.