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.
Patent No.:
Date of Patent:
Aug. 26, 2003
Filed:
Dec. 10, 2001
Björn Olsson, Klässbol, SE;
Mikael Larsson, Karlstad, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method for routing calls to telephony devices when the telephone numbers used to identify the telephony devices have been converted from an old numbering scheme to a new numbering scheme. The method includes the steps of: receiving a call request for one of the telephony devices; examining at least a portion of a telephone number in the call request to determine whether one or more digits correspond to an old series of telephone numbers having a first numbering scheme that have been converted to a second numbering scheme; and, if the telephone number corresponds to a telephone number that has been changed to the second numbering scheme: i) determining the one or more digits to be appended to the telephone number to convert it to the second numbering scheme; ii) appending the one or more digits to the telephone number to obtain a now telephone number for the telephony device; and completing the call request using the new telephone number.