Telephone exchange apparatus for both mobile and stationary stat

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network

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Details

370 951, H04Q 738, H04Q 720

Patent

active

055286658

ABSTRACT:
A telephone exchange apparatus for both mobile and stationary subscribers in which the stationary subscribers are not assigned permanent channel pairs but rather are treated as the mobile subscribers and assigned channel pairs at the time a telephone connection is made. All connection channel pairs are within the frequency spectrum of the broad band cable connecting the stationary subscribers.

REFERENCES:
patent: 3806804 (1974-04-01), Mills et al.
patent: 4792948 (1988-12-01), Harger et al.
patent: 5251053 (1993-10-01), Heidemann

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