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:
Nov. 09, 2010
Filed:
Apr. 11, 2007
Safwan Khan, Gainesville, VA (US);
Safwan Khan, Gainesville, VA (US);
Nextel Communications Inc., Reston, VA (US);
Abstract
A method and system for routing a push-to-talk (PTT) call in a communications network is disclosed. A PTT call request is received at a regional call processor of the communications network, where the PTT call request includes an address for a called party with a first user part and a second domain part. The regional call processor consults a table to determine whether the second domain part is associated with the communications network. The regional call processor routes the PTT call request to a central call processor of the communications network if the second domain part is associated with the communications network and routes the PTT call request to a gateway if the second domain part is not associated with the communications network.