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. 25, 2012
Filed:
May. 31, 2006
Yuhui J. Lin, Napperville, IL (US);
Jiten A. Shah, Naperville, IL (US);
Alok Sharma, Lisle, IL (US);
Yuhui J. Lin, Napperville, IL (US);
Jiten A. Shah, Naperville, IL (US);
Alok Sharma, Lisle, IL (US);
Alcatel Lucent, Paris, FR;
Abstract
Communication networks and methods are disclosed that provide call delivery to a dual mode wireless device served by a wireless data network (e.g., WiFi/IMS network) and a wireless voice network (e.g., cellular network). A call control function in the wireless data network is adapted to receive a call to the dual mode wireless device. The call control function transmits a ping message to the dual mode wireless device over the wireless data network to determine if the device is available over the wireless data network for the call. If the call control function receives a response to the ping message from the device, then the call control function attempts to set up the call over the wireless data network. If the call control function does not receive a response to the ping message, then the call control function may attempt to set up the call over the wireless voice network.