Caller location determination systems and methods

Telecommunications systems that are adapted to: (1) monitor a user's behavior to anticipate that the user will likely imminently place an emergency services request; and (2) in response to determining that a request for emergency services is likely to be initiated imminently, facilitate the transmission of telemetry data from the user's mobile computing device to a remote computer for use in determining a dispatchable location for use by a PSAP that will handle the request. The system may execute these steps in advance of the request for emergency services being initiated. For example, the system may monitor the user's behavior, and determine that the user will imminently place an emergency call in response to determining that the user has dialed one or more digits of an emergency number, but has not yet selected a "send" key (or the equivalent) to formally initiate the call.