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:
Jul. 27, 2010
Filed:
Oct. 29, 2004
Nancy Ann Book, Palatine, IL (US);
Monica Cuellar, Waukesha, WI (US);
Sean Reppen, West Allis, WI (US);
Denis F. Nolan, Tracy, CA (US);
Nancy Ann Book, Palatine, IL (US);
Monica Cuellar, Waukesha, WI (US);
Sean Reppen, West Allis, WI (US);
Denis F. Nolan, Tracy, CA (US);
AT&T Intellectual Property I, L.P., Reno, NV (US);
Abstract
An advanced intelligent network (AIN) telephony service permits users of a dedicated access line (DAL) service to place toll free calls over the DAL, even when the long distance network cannot query a national toll free database, such as a national service management system (SMS). A switch in the long distance network, which cannot access the toll free network, receives the toll free call and forwards the toll free call to a switch that can access the national toll free database. In one embodiment, the switch that can access the national toll free database resides in a local exchange carrier (LEC) network. Thus, the DAL subscribers do not have to route toll free calls over local trunks.