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:
May. 13, 2008
Filed:
Aug. 01, 2002
Ashraf M. Dahod, Andover, MA (US);
Michael Silva, East Sandwich, MA (US);
Peter Higgins, Sandwich, MA (US);
Rajat Ghai, West Yarmouth, MA (US);
John Depietro, Brewster, MA (US);
Nick Lopez, Sleepy Hollow, IL (US);
Paul Shieh, Westborough, MA (US);
Ashraf M. Dahod, Andover, MA (US);
Michael Silva, East Sandwich, MA (US);
Peter Higgins, Sandwich, MA (US);
Rajat Ghai, West Yarmouth, MA (US);
John DePietro, Brewster, MA (US);
Nick Lopez, Sleepy Hollow, IL (US);
Paul Shieh, Westborough, MA (US);
Starent Networks, Corp., Tewksbury, MA (US);
Abstract
Advanced communications features are provided in a mobile communications network having at least one mobile switching center and at least one mobile station subsystem. The mobile switching center and mobile station subsystem each communicate signaling messages according to a mobile signaling protocol. An indication is received that a half-duplex mobile communications session is to be initiated between a first mobile station subsystem and a second mobile station subsystem. The first and second mobile station subsystems include full-duplex communications apparatus for use in full-duplex mobile communications sessions. The half-duplex mobile communications session relies on the first and second mobile station subsystems, and all of the reliance is only on the full-duplex communications apparatus. Mobile communications telephone calls are established with the first mobile station subsystem and the second mobile station subsystem. One of the first and second mobile station subsystems is selected as a voice signal source in the half-duplex communications session.