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:
Mar. 16, 2004
Filed:
Mar. 16, 2001
Applicant:
Inventors:
Bertram Geck, Boca Raton, FL (US);
Francisco Olympio Marcon da Rocha, Boca Raton, FL (US);
Assignee:
Siemens Information and Communication Networks, Inc., Boca Raton, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 3/22 ;
U.S. Cl.
CPC ...
H04M 3/22 ;
Abstract
Telephone equipment, such as a private branch exchange (PBX) is provided according to an implementation of the present invention. The telephone equipment includes one or more trunk interface cards. The trunk interface cards are configurable by software to operate with ground-start or loop-start trunks. According to the present invention, the trunk interface cards are controllable by software to determine which type of trunk they are connected to and to determine if the connected central office provides for far-end disconnection indication.