Telephonic communications – Supervisory or control line signaling – Substation originated
Reexamination Certificate
2005-09-13
2005-09-13
Harold, Jefferey F (Department: 2644)
Telephonic communications
Supervisory or control line signaling
Substation originated
C379S355020, C379S218010, C455S566000
Reexamination Certificate
active
06944283
ABSTRACT:
A process for transmitting a telephone number of a desired subscriber from a directory enquiry facility (ENQ) to a terminal (TER), a directory enquiry facility (ENQ) for this purpose, and a terminal for this purpose. The terminal (TER) is connected to the directory enquiry facility (ENQ) over a telecommunication network with a first channel (BCHAN) for voice transmission and a second channel (DCHAN) for data transmission. An enquiry with data describing the required subscriber is transferred from the terminal (TER) to the directory enquiry facility (ENQ) on the first channel (BCHAN), the telephone number is sent by the directory enquiry facility (ENQ) in the form of a numeric string on the second channel (DCHAN). The terminal (TER) receives the numeric string, derives the telephone number, and stores it in a memory (MEM) provided for direct dialling of the telephone number.
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Alcatel
Harold Jefferey F
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