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. 03, 2013
Filed:
May. 28, 2007
Applicants:
Kyung-ae Yoon, Gyeonggi-do, KR;
Jae-seung Song, Seoul, KR;
Mi-seon Ra, Seoul, KR;
Inventors:
Assignee:
LG Electronics Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 3/46 (2006.01); H04M 3/58 (2006.01); H04L 12/16 (2006.01); H04L 12/66 (2006.01); H04W 4/16 (2009.01);
U.S. Cl.
CPC ...
Abstract
A call connection method is provided. When a terminal is in an IMS unregistered state, information indicating whether to perform a session transfer toward a CS domain is stored in a server during a registration or deregistration process. When receiving a call connection request message over an IMS, if the terminal is in the IMS unregistered state and the information indicates the session transfer, the call transfer toward the CS domain can be performed.