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(12) United States Patent
(io) Patent No.: (45) Date of Patent:
US 7,769,159 Bl *Aug. 3, 2010
(54) METHOD AND SYSTEM FOR IDENTIFYING CALLS
(75) Inventor: Thomas L. Paterik, Kansas City, MO (US)
(73) Assignee: Sprint Spectrum L.P., Overland Park, KS (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 1724 days.
This patent is subject to a terminal disclaimer.
(21) Appl.No.: 10/939,636
(22) Filed: Sep. 13, 2004
Related U.S. Application Data
(63) Continuation-in-part of application No. 10/453,248, filed on Jun. 3, 2003.
(51) Int. CI.
H04M 5/00 (2006.01)
(52) U.S. CI 379/245; 379/246; 379/265.09;
(58) Field of Classification Search 379/245,
379/88.17, 137, 88.19, 88.21, 265.09, 266.1, 379/246,207.15; 370/352,280; 455/406 See application file for complete search history.
(56) References Cited
U.S. PATENT DOCUMENTS
6,526,043 Bl* 2/2003 Fogelholm et al.
6,683,870 Bl 1/2004 Archer
6,694,001 Bl 2/2004 Lampelletal.
6,721,284 Bl 4/2004 Mottishaw et al.
6,757,275 B2 6/2004 Sorrentino
6,792,089 B2 9/2004 Tiliksetal.
FOREIGN PATENT DOCUMENTS
WO WO 01/15487 Al 3/2001
Cisco Systems, Inc., "Packet Telephony: Long Distance Service for ISPs," Technical Description, pp. 1-16, 1999.
Primary Examiner—Thjuan K Addy (57) ABSTRACT
A call is established between a circuit-switched network element and a packet-switched network element. A first call record is generated to record the circuit switched network element's involvement in the call, and a second call record is generated to record the packet-switched network element's involvement in the call. The first and second call records include the same call identification information to identify the call. The call identification information may include an internetwork call identifier, an identification of a carrier or service provider associated with the call, and other information that, in combination, uniquely identifies the call. The first and second call records are stored, e.g., in a centralized call record repository. Call records for a given call can be retrieved based on the call identification information for the given call.
18 Claims, 4 Drawing Sheets