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:
Oct. 12, 1999
Filed:
Jun. 24, 1996
Erkki Joensuu, Siuntio, FI;
Eric Valentine, Plano, TX (US);
David Boltz, Garland, TX (US);
Ranjit Bhatia, Dallas, TX (US);
James L Mills, Plano, TX (US);
Ericsson Inc., Research Triangle Park, NC (US);
Abstract
A request for call forwarding activation along with forward-to-number is received from a mobile station via one of the data channels such as a Stand-alone Dedicated Control Channel (SDCCH). The activation request itself is transported by an Unstructured Supplementary Service Data (USSD) message. The serving mobile switching center (MSC) analyzes the forward-to-number and establishes a speech connection with the mobile station by calling back the mobile station. Next, the MSC originates an outgoing call towards the forward-to-number and, as a result, establishes a speech connection between the mobile station and the telephone terminal associated with the forward-to-number. By establishing a speech connection between the two parties, the mobile subscriber requesting the call forwarding activation can verbally verify the forward-to-number. As an alternative, TCAP messages can be communicated between the serving MSC and the local exchange serving the forward-to-number to request the local exchange to verify the validity of the forward-to-number.