Abstract: Methods and systems for displaying location uncertainty of locations of mobile devices are provided. A location of a mobile device may be determined using a location system. The mobile device can be associated with a location service that locates the mobile device. The location system identifies the location of the mobile device that is an approximation of the location of the mobile device. An uncertainty region for the location of the mobile device is identified. The uncertainty region determines an extent of geographic data that is displayed on a location diagram based on a correlation between the uncertainty region and the extent of geographic data. The extent of geographic data that corresponds to the uncertainty region is determined. The location associated with the uncertainty region is communicated such that the location is displayed on the location diagram with the extent of geographic data using the obscuring feature.

Abstract: A method and apparatus for providing a sequence of location data points to a mapping device. A cellular mobile station uses GPS satellite signals to compute its varying location over time and outputs the location as data points in a sequence to the mapping device. If the mobile station loses satellite communication, it transitions the output sequence to a static state in which the location data points are a substantial repetition of the last location that the mobile station determined from satellite signals. Further, when the mobile station detects that it has entered into a new cellular coverage area, it obtains satellite assistance data from its cellular carrier network and uses the data to renew satellite communication. The mobile station may then transition the sequence back to a dynamic state, with location data points determined over time based on received satellite signals.

Abstract: A method and system for location based subject matter teleconferencing is disclosed. A user makes a request to join a teleconference based on the user's location and subject matter. A conference-call-setup-system (“CCSS”) receives the request. The CCSS determines the location of the user and identifies the teleconference that matches the request. Additionally, the CCSS may use the time of the request when identifying the teleconference that matches the request. The CCSS then arranges for a conference bridge to join the user to the teleconference. As a result, the user can communicate with other users in the same general location who want to discuss the same subject matter.

Abstract: A method and system for delivering location information through a voice messaging system is provided. A mobile subscriber may be directed to a voice messaging system if a party is unavailable or chooses not to accept the call. The mobile subscriber may indicate to the voice messaging system that he would like to have his location information be made available to the party. The voice messaging system may contact a location system to obtain the location of the mobile subscriber based on the location of the mobile subscriber's terminal. The party may retrieve the mobile subscriber's location information from the voice messaging system.