Telephonic communications – Reception of calling information at substation in wireline... – Blocking caller id transmission
Patent
1995-04-21
1997-12-16
Zele, Krista M.
Telephonic communications
Reception of calling information at substation in wireline...
Blocking caller id transmission
379 97, H04M 157
Patent
active
056994176
ABSTRACT:
A method and system for transmitting text information using multifrequency signals is provided. A switching center transmits a first multifrequency signal indicating the start of a text transmission. A receiver unit receives the first multifrequency signal and prepares to receive text information. The switching center transmits to the receiver unit a second and third multifrequency signals after the first multifrequency signal. The second and third multifrequency signals contain information corresponding to a text character. The receiver unit receives the second and third multifrequency signals and determines the text character transmitted. The switching center transmits a fourth multifrequency signal to the receiver unit indicating the end of the text transmission.
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Cidco Incorporated
Hodgson Serge J.
Hunter Daniel S.
Lycke Lawrence E.
Zele Krista M.
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