The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 24, 1996

Filed:

Jan. 25, 1993
Applicant:
Inventors:

Greig R Detering, Phoenix, AZ (US);

Robert L Gallick, Phoenix, AZ (US);

James F Hewell, Glendale, AZ (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ; H04M / ; H04M / ; H04M / ;
U.S. Cl.
CPC ...
379142 ; 379197 ; 379199 ; 379201 ; 379354 ; 379355 ;
Abstract

With Calling Number Identification (CNID) service, Frequency Shift Keying (FSK) data is sent over the telephone lines to the telephone service customer. A telephone subscriber may prevent their name/number from being transmitted to the party they are calling on a per call basis by dialing a prefix before they dial the desired number. The present invention allows for the automatic insertion/removal of that prefix in the number stream when the called party's number is dialed. This feature is accomplished by inserting a $ character into the dialing sequence. If the blocking feature is enabled, the $ is translated to the numeric sequence necessary to prevent the transmittal of one's telephone number. In the alternative, the $ is translated to a meaningless delimiter if the feature is disabled.


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