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:
Dec. 05, 2006
Filed:
Mar. 11, 2004
Richard Edward Schaedler, New Hill, NC (US);
Larry Gene Slate, Cary, NC (US);
Aziz A. Tejani, Morrisville, NC (US);
Richard Nolan Kennedy, Jr., Naperville, IL (US);
Richard Edward Schaedler, New Hill, NC (US);
Larry Gene Slate, Cary, NC (US);
Aziz A. Tejani, Morrisville, NC (US);
Richard Nolan Kennedy, Jr., Naperville, IL (US);
Tekelec, Morrisville, NC (US);
Abstract
Methods and system for delivering presence information regarding push-to-talk subscribers are disclosed. In one method, a short message gateway receives presence information from a first push-to-talk subscriber from a presence or push-to-talk server. The short message gateway determines the location and availability of a second push-to-talk subscriber to which the presence information is directed. If the second push-to-talk subscriber is available, the SMS gateway delivers the presence information to the second push-to-talk subscriber in a manner that bypasses the SMSC. If the SMS gateway determines that the second push-to-talk subscriber is not available, the SMS gateway discards the presence information.