US 9,814,082 B2
System and method for managing emergency requests
Jan Hendrik Lucas Bakker, Keller, TX (US); Adrian Buckley, Tracy, CA (US); and Andrew Michael Allen, Hallandale Beach, FL (US)
Assigned to BlackBerry Limited, Waterloo, Ontario (CA)
Filed by BlackBerry Limited, Waterloo (CA)
Filed on Aug. 31, 2016, as Appl. No. 15/253,036.
Application 15/253,036 is a continuation of application No. 14/968,686, filed on Dec. 14, 2015, granted, now 9,462,616.
Application 14/968,686 is a continuation of application No. 12/937,199, granted, now 9,215,734, issued on Dec. 15, 2015, previously published as PCT/US2009/045990, filed on Jun. 2, 2009.
Application 12/937,199 is a continuation of application No. 12/131,785, filed on Jun. 2, 2008, granted, now 8,478,226, issued on Jul. 2, 2013.
Claims priority of provisional application 61/081,576, filed on Jul. 17, 2008.
Claims priority of provisional application 61/061,507, filed on Jun. 13, 2008.
Prior Publication US 2016/0374117 A1, Dec. 22, 2016
This patent is subject to a terminal disclaimer.
Int. Cl. H04M 11/04 (2006.01); H04W 76/00 (2009.01); H04W 4/22 (2009.01); H04L 29/06 (2006.01); H04M 3/42 (2006.01); H04M 7/00 (2006.01); H04W 4/02 (2009.01); H04W 80/10 (2009.01)
CPC H04W 76/007 (2013.01) [H04L 65/1006 (2013.01); H04L 65/1016 (2013.01); H04L 65/1069 (2013.01); H04L 65/40 (2013.01); H04M 3/42348 (2013.01); H04W 4/22 (2013.01); H04M 3/42068 (2013.01); H04M 7/006 (2013.01); H04M 2242/04 (2013.01); H04W 4/02 (2013.01); H04W 80/10 (2013.01)] 27 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a network component that is part of a trust domain configured to:
receive from a user equipment (“UE”) a Session Initiation Protocol (“SIP”) request message for a dialog that is an emergency-related request;
update header information of the SIP request message for a dialog;
forward the SIP request message for a dialog toward a Public Safety Answering Point (“PSAP”);
send to the UE a SIP response message containing a P-Asserted-Identity header field in response to the SIP request message, the P-Asserted-Identity header field comprising an emergency number, the SIP response message indicating that the SIP request message for a dialog, sent by the UE, is an emergency-related request and that the UE should include location information in a response to the SIP response message; and
receive from the UE, in response to the SIP response message, a SIP request message within the dialog, the SIP request message within the dialog containing emergency-related information comprises a UE location.