Voice communication system

A voice communication system, comprising:

• a plurality of transmitting/receiving systems for transmitting and/or receiving radio signals to a radio station group and/or from a plurality of radio station groups, wherein the radio station groups each contain a plurality of geographically distributed radio stations and wherein voice radio messages are sent to individual ones of the radio station groups on different radio channels and/or received by the individual radio station groups;
• a first common controller workstation connected to said transmitting/receiving systems, said first common controller workstation having a loudspeaker for outputting the voice radio messages to a user, a microphone for receiving the voice radio messages emitted by the user and an input unit, wherein a receive transmission mode or a transmit/receive transmission mode is selected for the individual radio station groups by the user via said input unit, and wherein an encrypted communication mode or an unencrypted communication mode is selected for the individual radio station groups by the user via said input unit;
• said first common controller workstation contains a push-to-talk unit;
• said first common controller workstation contains a control and processing unit, wherein said control and processing unit contains a buffer memory and wherein the radio channels of the individual radio station groups as well as a respective selected transmission mode are stored in said buffer memory;
• and
• said push-to-talk unit contains at least two configurable push-to-talk buttons, wherein each of said configurable push-to-talk buttons is assigned at least one of the radio station groups and one communication mode by the user via said input unit.