1
Richard Dickinson, Roger Marshall, Steven P Helme: Enhanced E911 location information using voice over internet protocol (VoIP). TeleCommunication Systems, William H Bollman, September 6, 2005: US06940950 (221 worldwide citation)

An E-9-1-1 voice-over-IP (VoIP) solution is provided wherein a 911 call from a wireless VoIP device is routed directly to the correct Public Safety Answer Point (PSAP) via dedicated trunks, together with correct location information and call-back number. VoIP gateways are implemented locally, at lea ...


2
Yinjun Zhu, Richard Dickinson, Roger Marshall, Steven P Helme: Solutions for voice over internet protocol (VoIP) 911 location services. TeleCommunication Systems, William H Bollman, August 21, 2007: US07260186 (194 worldwide citation)

An E-9-1-1 voice-over-IP (VoIP) solution is provided wherein a 911 call from a mobile VoIP device is routed directly to the correct Public Safety Answer Point (PSAP) via dedicated trunks, together with correct location information and call-back number. VoIP gateways are implemented locally, at least ...


3
Hanoch Yokev, Haim Harel: Pager with reverse paging facility. Nexus Telecommunication Systems, Daniel J Kluth, August 2, 1994: US05335246 (153 worldwide citation)

Position determining apparatus including at least one base station including a base transmitter which periodically transmits timing signals and a plurality of mobile remote units. Each remote unit includes a mobile receiver operative to receive timing signals transmitted by at least one base transmi ...


4
Erik L Wallace, Walter Weichselbaumer, Daniel J Hronek, Mark Titus, Dara Ung: Mobile activity status tracker. TeleCommunication Systems, September 19, 2006: US07110773 (146 worldwide citation)

A technique and apparatus to provide status tracking of presence and/or location of a mobile, wireless device to a requesting entity even outside of a particular wireless system. This allows wireless service providers the ability to monitor and log changes in the status of mobile stations within and ...


5
Lance Douglas Pitt, Dorothy Anne McClintock, Bing Long: Culled satellite ephemeris information for quick assisted GPS location determination. TeleCommunication Systems, William H Bollman, November 18, 2003: US06650288 (140 worldwide citation)

GPS satellites are culled into a minimum, preferred group having a longest dwell time within a cone of space, and communicated to mobile devices or subscribers within a particular region (e.g., serviced by a particular base station). The culling may initially be a list of GPS satellites visible to a ...


6
Chris Knotts: Inter-carrier short messaging service providing phone number only experience. TeleCommunication Systems, William H Bollman, December 2, 2003: US06658260 (119 worldwide citation)

A phone number only messaging experience is provided in an Inter-Carrier Short Messaging System (IC-SMS) service. Subscriber to subscriber messages are routed between carrier's networks using an Inter-Carrier messaging module with appropriate MIN/carrier/carrier routing look-up capabilities. Sh ...


7
Hanoch Yokev, Shimon Peleg, Yehouda Meiman, Boaz Porat: Differential ranging for a frequency-hopped remote position determination system. Nexus Telecommunication Systems, Schwegman Lundberg Woessner & Kluth P A, January 21, 1997: US05596330 (107 worldwide citation)

A differential ranging location system is described which uses a modified time-of-arrival technique to determine the location of a frequency hopped spread spectrum radio signal. The transmitter simultaneously transmits two radio frequency carriers having different frequencies such that a phase diffe ...


8
Arlene Havlark, Victor Burton, John Ahrens: Wireless telecommunications location based services scheme selection. TeleCommunication Systems, April 3, 2007: US07200380 (97 worldwide citation)

An intelligent system for choosing selection schemes to be tried in a predetermined order for determining the location of a wireless mobile client, including retrieving a last known position record from a cache, checking serving network capability, choosing an initial selection scheme according to p ...


9
Daniel J Hronek: Intelligent roaming database (IRDB) updating. TeleCommunication Systems, William H Bollman, May 13, 2003: US06564055 (95 worldwide citation)

A unique method and apparatus to dynamically maintain different Intelligent Roaming Database (IRDB) or Preferred Roaming Lists (PRL) in a mobile handset. In accordance with the principles of the present invention, the current location of the mobile device or other individualized aspect of the mobile ...


10
Kenneth Clubb, Lyle Sutton: System and method to publish information from servers to remote monitor devices. TeleCommunication Systems, William H Bollman, April 4, 2006: US07024474 (92 worldwide citation)

To assist in monitoring the intelligent messaging network, a system and method for publishing logging and status information from the servers is provided. A list of available servers accessible for monitoring by persons, devices, and applications via a remote monitor device can be provided. The remo ...