The system is easy to operate, every station can call to control room or other station and can realize multi-users call in the same time.
系统操作简单，系统内的任一话站均能与控制室或其它话站通话，每个话站均有选择任一通话通道的权利。
The system is easy to operate, every station can call to control room or other station and can realize multi-users call in the same time.
系统操作简单，系统内的任一话站均能与控制室或其它话站通话，每个话站均有选择任一通话通道的权利。
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