Telephonic communications – Reception of calling information at substation in wireline... – Blocking caller id transmission
Patent
1997-02-28
1998-11-17
Kuntz, Curtis A.
Telephonic communications
Reception of calling information at substation in wireline...
Blocking caller id transmission
379354, 379 9323, 379157, 379177, 379164, H04M 156, H04M 1506, H04M 100, H04M 300
Patent
active
058387773
ABSTRACT:
The present invention relates to an auto-detecting dialing communication system used to make the display of caller numbers in host or communication system consist with that of an extension telephone or communication system, especially relates to an extension telephone or communication system that can also display caller numbers.
The present invention offer a device for auto-detecting dialing of a parallel communication system, which composes: (1) a FSK decoder for acquiring a dial-in number. (2) an extension telephone detecting device for detecting whether the extension telephone is off hook. (3) a memory for storing the caller telephone numbers. (4) a ring-back signal detecting device for examining whether a ring-back signal is sent back. (5) a Dual Tone Multiple Frequency (DTMF) decoder for acquiring the outgoing call number. (6) a processor for sequentially proceeding with output signals of the FSK (Frequency Shift keying) decoder, the extension telephone detecting device, the memory, the ring-back signal detecting device and the DTMF (Dual Tone Multiple Frequency)decoder according to an order.
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Chang Jackson
Lai Jeffrey
Xu Taing
Yin James
Barnie Rexford N.
Inventec C'orporation
Kuntz Curtis A.
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