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:
Jan. 09, 2007
Filed:
Apr. 26, 2004
Jheroen P. Dorenbosch, Paradise, TX (US);
Jack A. Gipson, Fort Worth, TX (US);
Ajaykumar R. Idnani, Schaumburg, IL (US);
Jheroen P. Dorenbosch, Paradise, TX (US);
Jack A. Gipson, Fort Worth, TX (US);
Ajaykumar R. Idnani, Schaumburg, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
Fast call set-up for a call to a multi-mode communication unit () is facilitated by a method and apparatus for registering and re-registering priorities with a SIP registrar (). A list of contacts with first priorities associated with a mode of operation in a first enterprise network () is established and used. A switch to second priorities is made when a probability of a switch from the first mode of operation to a second mode of operation in a second cellular network () satisfies a threshold. The list of contacts includes a contact having an expiration time for the first mode of operation. A quality factor is determined and the list of contacts is re-registered and the expiration time changed if the quality factor does not satisfy a threshold.