The invention proposes a communications system that includes at least one stationary transmittingreceiving unit connected to a communications terminal, a mobile radio terminal and a transmittingreceiving unit connected to the microphone and the loudspeaker of the mobile radio terminal that can be connected wirelessly to the stationary transmittingreceiving unit. An actuator rod in the handle is utilized for remotely triggering a switch located in the lower part of the housing. The L1EC blocks enable the reconstruction of one or more damaged or inaccessible data blocks, so long as sufficient undamaged elements are still accessible. A cap comprising a different material than the gate dielectrics can be positioned over the fins. The elongated bore extends between the post-receiving opening and a threaded aperture.