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This page displays all 「FI」 in main group H04M5/00. |
HB:Handbook | ||||
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CC:Concordance | |||||
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Manual exchanges (substation equipment in general H04M 1/00) | HB | CC | 5K045 | |
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.Constructional details (jacks, jack-plugs H01R 24/58) | HB | CC | 5K045 | |
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.Arrangements for indicating calls or supervising connections for calling or clearing | HB | CC | 5K045 | |
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..affording automatic call distribution | HB | CC | 5K045 | |
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.using connecting means other than cords | HB | CC | 5K045 | |
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.using separate plug for each subscriber | HB | CC | 5K045 | |
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.Calling substations, e.g. by ringing | HB | CC | 5K045 | |
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.Applications of speech amplifiers | HB | CC | 5K045 | |
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.with means for reducing interference; with means for reducing effects due to line faults | HB | CC | 5K045 | |
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.Arrangements for signalling the class or number of called or calling line from one exchange to another | HB | CC | 5K045 | |
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..Arrangements for indicating the numbers of the incoming lines | HB | CC | 5K045 | |