Time division multiplexing method with channel compression and a
Time division multiplexing system
Time division multiplexing system for N channels in a frame unit
Time division nodal switching network
Time division speech path apparatus
Time division speech path apparatus
Time division speech path switch
Time division switch
Time division switching apparatus
Time division switching circuit with time slot interchange
Time division switching for multi-channel calls using two time s
Time division switching matrix
Time division switching network
Time division switching network
Time division switching system
Time division switching system
Time division switching system
Time division switching system
Time division switching system
Time division switching system