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FI (list display)

  • H04M9/00
    		•  Arrangements for interconnection not involving centralised switching HB CC 5K038
  • H04M9/00@A
    		•  Layout of one parent station to one child station HB CC 5K038
  • H04M9/00@B
    		•  .characterized by ringing HB CC 5K038
  • H04M9/00@C
    		•  .using the carrier (including radio) HB CC 5K038
  • H04M9/00@D
    		•  .Coupling with an additional function, e.g. alarm, automatic answering, etc. and another device (radio, telephone, etc.) HB CC 5K038
  • H04M9/00@F
    		•  Layout of one parent station to many child stations HB CC 5K038
  • H04M9/00@G
    		•  .Channel selection HB CC 5K038
  • H04M9/00@H
    		•  .Coupling with another device (telephone line, CATV, inter-phone, etc.) HB CC 5K038
  • H04M9/00@J
    		•  Layout of many parent stations to many child stations HB CC 5K038
  • H04M9/00@K
    		•  Layout for conference HB CC 5K038
  • H04M9/00@Z
    		•  Others HB CC 5K038
  • H04M9/02
    		•  .involving a common line for all parties HB CC 5K038
  • H04M9/04
    		•  .involving a separate line for each pair of parties HB CC 5K038
  • H04M9/06
    		•  .involving combinations of interconnecting lines HB CC 5K038
  • H04M9/08
    		•  .Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic HB CC 5K038
  • H04M9/10
    		•  ..with switching of direction of transmission by voice frequency HB CC 5K038
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