Patents by Inventor Scott E. Riffe

Scott E. Riffe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Call handling scheme to reduce roaming charges
    Patent number: 8068830
    Abstract: A second switch receives an indication from a roaming network that a call forwarded by the roaming network has been dropped by the roaming network, and in response to receiving the indication, forwards the call from a first switch.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: November 29, 2011
    Assignee: AT&T Mobility II LLC
    Inventors: Steven I. Carlson, Scott E. Riffe
  • Call Handling Scheme to Reduce Roaming Charges
    Publication number: 20100075647
    Abstract: A second switch receives an indication from a roaming network that a call forwarded by the roaming network has been dropped by the roaming network, and in response to receiving the indication, forwards the call from a first switch.
    Type: Application
    Filed: November 25, 2009
    Publication date: March 25, 2010
    Inventors: Steven I. Carlson, Scott E. Riffe
  • Call handling scheme to reduce roaming charges
    Patent number: 7627314
    Abstract: A second switch receives an indication from a roaming network that a call forwarded by the roaming network has been dropped by the roaming network, and in response to receiving the indication, forwards the call from a first switch.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: December 1, 2009
    Assignee: AT&T Mobility II LLC
    Inventors: Steven I. Carlson, Scott E. Riffe
  • HOTLINE ROUTING OF PRE-ACTIVATED GSM SUBSCRIBERS USING PSEUDO-MSISDNs
    Publication number: 20080242285
    Abstract: The present invention relates to hotline routing of calls originating from mobile stations. The hotline routing conserves MSISDNs for valid subscribers and provides a relatively generic solution. In one example, a computer system stores in a location register a subscriber profile with an IMSI and a pseudo-MSISDN. A mobile station (which includes a SIM with the IMSI) originates a call. After translation of the pseudo-MSISDN, a serving MSC routes the call to a service activation center.
    Type: Application
    Filed: June 10, 2008
    Publication date: October 2, 2008
    Applicant: AT&T Mobility II LLC
    Inventors: Scott E. Riffe, Steven I. Carlson, Gregory A. Wong
  • Hotline routing of pre-activated GSM subscribers using pseudo-MSISDNs
    Patent number: 7386302
    Abstract: The present invention relates to hotline routing of calls originating from mobile stations. The hotline routing conserves MSISDNs for valid subscribers and provides a relatively generic solution. In one example, a computer system stores in a location register a subscriber profile with an IMSI and a pseudo-MSISDN. A mobile station (which includes a SIM with the IMSI) originates a call. After translation of the pseudo-MSISDN, a serving MSC routes the call to a service activation center.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: June 10, 2008
    Assignee: AT&T Mobility II LLC
    Inventors: Scott E. Riffe, Steven I. Carlson, Gregory A. Wong
  • Hotline routing of pre-activated GSM subscribers using pseudo-MSISDNs
    Publication number: 20020193100
    Abstract: The present invention relates to hotline routing of calls originating from mobile stations. The hotline routing conserves MSISDNs for valid subscribers and provides a relatively generic solution. In one example, a computer system stores in a location register a subscriber profile with an IMSI and a pseudo-MSISDN. A mobile station (which includes a SIM with the IMSI) originates a call. After translation of the pseudo-MSISDN, a serving MSC routes the call to a service activation center.
    Type: Application
    Filed: June 4, 2002
    Publication date: December 19, 2002
    Applicant: AT&T Wireless Services, Inc.
    Inventors: Scott E. Riffe, Steven I. Carlson, Gregory A. Wong