Telephonic communications – Call or terminal access alarm or control – At switching center
Reexamination Certificate
2001-08-28
2003-02-04
Tieu, Benny Q. (Department: 2642)
Telephonic communications
Call or terminal access alarm or control
At switching center
C379S211010, C379S127010, C379S142050
Reexamination Certificate
active
06516057
ABSTRACT:
TECHNICAL FIELD
The present invention relates to methods and systems for providing telecommunication services.
BACKGROUND OF THE INVENTION
Previously, “555” NXX calls were dedicated for directory assistance services. For example, a “555-1212” call provides directory assistance within a calling party's area code, and a “NPA-555-1212” call provides directory assistance within another area code depending on a local dialing plan.
The Industry Numbering Committee (INC) approved guidelines to broaden the assignment of 555 NXX line numbers in a document entitled, 555 NXX Assignment Guidelines, INC#94-0429-002. These guidelines enable the assignment of 555 numbers on either a national basis or a non-national basis. In accordance with these guidelines, the number 555-1212 is considered unassignable for any purpose other than directory assistance services provided by interexchange and local exchange carriers. In addition, a block of one hundred 555 line numbers from 555-0100 to 555-0199 are reserved as fictitious non-working numbers for use by the entertainment and advertising industries. Other 555 numbers also have been grandfathered.
Using these guidelines, many enhanced service providers, information providers, and businesses have requested and been assigned 555 numbers for their use.
As of June 1996, 2,143 numbers have been assigned of the available 555 numbers. Of these assigned numbers, 1,785 (83%) numbers are national numbers. The industry expectation is a 7 digit dialed 555 number.
REFERENCES:
patent: 5524142 (1996-06-01), Lewis et al.
patent: 5537464 (1996-07-01), Lewis et al.
patent: 5768358 (1998-06-01), Venier et al.
patent: 5818919 (1998-10-01), Berberich, Jr. et al.
patent: 5903639 (1999-05-01), Lipchock et al.
patent: 6148070 (2000-11-01), Meek et al.
patent: 6327357 (2001-12-01), Meek et al.
Brand Rodney T.
Curtis John D.
Meek William H.
Snider Judy A.
Stanke Márianne J.
Ameritech Corporation
Brinks Hofer Gilson & Lione
Tieu Benny Q.
LandOfFree
Method, system, and database for providing a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method, system, and database for providing a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method, system, and database for providing a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3183163