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. 26, 2013
Filed:
Apr. 08, 2010
Trent J. Miller, West Chicago, IL (US);
Rod N. Averbuch, Chicago, IL (US);
Gerald R. Drobka, Naperville, IL (US);
Peter M. Drozt, Prairie Grove, IL (US);
Sikendar Fidai, South Barrington, IL (US);
Michael F. Korus, Eden Prairie, MN (US);
Todd A. Leigh, East Lansing, MI (US);
Donald G. Newberg, Hoffman Estates, IL (US);
Scott J. Pappas, Lake Zurich, IL (US);
Brian R. Poe, Cary, IL (US);
Steven E. Vanswol, Lombard, IL (US);
Trent J. Miller, West Chicago, IL (US);
Rod N. Averbuch, Chicago, IL (US);
Gerald R. Drobka, Naperville, IL (US);
Peter M. Drozt, Prairie Grove, IL (US);
Sikendar Fidai, South Barrington, IL (US);
Michael F. Korus, Eden Prairie, MN (US);
Todd A. Leigh, East Lansing, MI (US);
Donald G. Newberg, Hoffman Estates, IL (US);
Scott J. Pappas, Lake Zurich, IL (US);
Brian R. Poe, Cary, IL (US);
Steven E. Vanswol, Lombard, IL (US);
Motorola Solutions, Inc., Schaumburg, IL (US);
Abstract
A method and device enable establishing an inter-radio frequency subsystem interface (ISSI) unit-to-unit call between a calling unit of a calling home radio frequency subsystem (RFSS), and a called unit of a called home RFSS, through a hosted ISSI function (HIF). The method includes processing, at the HIF, a first invite message received from the calling home RFSS, wherein the first invite message includes a first request uniform resource identifier (URI) that designates an alias system unit identification (SU-ID). In response to the first invite message, transmitting, from the HIF to the called home RFSS, a second invite message, including a second request URI that designates a real SU-ID, wherein the HIF acts as the calling home RFSS. The unit-to-unit call is thus established between the calling unit and the called unit through the calling home RFSS, the HIF, and the called home RFSS.