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. 14, 2007
Filed:
Aug. 13, 2001
Kundan Singh, New York, NY (US);
Henning Schulzrinne, New York, NY (US);
Kundan Singh, New York, NY (US);
Henning Schulzrinne, New York, NY (US);
The Trustees of Columbia University in the City Of New York, New York, NY (US);
Abstract
A network telephony system is provided which enables unified messaging services. The system generally includes at least one user agent () operatively coupled to a data network () and a signalling server operatively coupled to the data network (). The user agents () are telephony endpoints, such as standalone Internet telephony appliances or personal computers with appropriate telephony software. A messaging server () is provided which is operatively coupled to the data network () and is responsive to the signaling server (). The system also includes a media server (A,B) which is operatively coupled to the network and includes computer data storage media for storing message files. The media server is responsive to the messaging server () and, on occurrence of a message condition, is directly accessible to a calling party to store a message file for subsequent retrieval by a called party.