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.

Date of Patent:
May. 30, 2017

Filed:

Apr. 21, 2013
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Abhijeet Sinha, West Bengal, IN;

Nitin Sachdeva, Hyderabad, IN;

Neha Goel, Delhi, IN;

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 3/42 (2006.01); H04M 3/428 (2006.01); H04W 4/16 (2009.01);
U.S. Cl.
CPC ...
H04M 3/428 (2013.01); H04M 3/4288 (2013.01); H04M 3/42246 (2013.01); H04W 4/16 (2013.01); H04M 3/4285 (2013.01);
Abstract

A method is provided for implementing a local call hold in a dual subscription dual active first communication device. A first voice call may be established with a second communication device via a first communication network. An indication of a second voice call may be received from a third communication device via a second communication network. The first voice call may be placed on hold by sending a call hold indicator within a regularly transmitted frame to the second communication device. The second voice call may be established with the third communication device after placing the first voice call on hold. The first voice call with the second communication device may be subsequently resumed by excluding the call hold indicator from the regularly transmitted frame to the second communication device.


Find Patent Forward Citations

Loading…