Remotely activatable locator system and method

1. A method for locating an entity attached to a locator device, wherein the locator device is configured to remain in a standby state and to enter an active state only upon receiving an activation message, wherein during the standby state the locator device is able to communicate with a cellular network only over a control channel of the cellular network while maintaining a low power state, and wherein during the active state the locator device initiates a voice channel call to enable locating the entity attached to the locator device, the method comprising:

receiving, at the locator device, an activation message over a control channel of the cellular network;

responsive to receiving the activation message, automatically authenticating the activation message and, upon authentication of the activation message, determining whether emergency activation has been authorized;

if emergency activation has not been authorized, performing at least one of performing an over the air update of the locator device, and initiating the voice channel call, over a voice channel of the cellular network, by calling a predetermined number;

if emergency activation has been authorized, automatically initiating the voice channel call over the voice channel of the cellular network, wherein the voice channel call is a public assistance or emergency call, and wherein the voice channel call enables location of the locator device by a radiolocation system;

sending a confirmation message to a party that transmitted the activation message confirming that the voice channel call has been placed by the locator device; and

determining that the voice channel call has been answered, and in response to determining that the voice channel call has been answered, transmitting a predetermined data stream providing information about the entity.

2. The method of claim 1 , further comprising:

playing a prerecorded audible message providing information about the entity in response to determining that the call has been answered.

3. The method of claim 1 , further comprising transmitting a status of the locator device to an operation center over the control channel of the cellular network.

4. The method of claim 1 , further comprising initiating, by the locator device, a multiparty call between the party answering the voice channel call and a party that transmitted the activation message.

5. The method of claim 1 , wherein the voice channel call is placed to a public safety answering point.

6. The method of claim 1 , further comprising playing a prerecorded audible message providing contact information associated with a party that transmitted the activation message.

7. The method of claim 1 , further comprising:

responsive to a status indicating that a power source of the locator device is low, transmitting a remote notification to a party that the power source is low.

8. A locator device comprising:

an electronic module configured to perform the following process:

receiving, at the locator device, an activation message over a control channel of a cellular network;

responsive to receiving the activation message, automatically authenticating the activation message and, upon authentication of the activation message, determining whether emergency activation has been authorized;

if emergency activation has not been authorized, performing at least one of performing an over the air update of the locator device, and initiating a voice channel call, over a voice channel of the cellular network, by calling a predetermined number;

if emergency activation has been authorized, automatically initiating a voice channel call over the voice channel of the cellular network, wherein the voice channel call is a public assistance or emergency call, and wherein the voice channel call enables location of the locator device by a radiolocation system; and

sending a confirmation message to a party that transmitted the activation message confirming that the voice channel call has been placed by the locator device;

wherein the locator device is configured to remain in a standby state and to enter an active state only upon receiving a properly authenticated activation message; and

wherein during the standby state the locator device is able to communicate with the cellular network only over the control channel of cellular network while maintaining a low power state.

9. The locator device of claim 8 , further comprising:

memory for storing a prerecorded audible message; and

a processor for playing the prerecorded audible message in response to determining that the call has been answered.

10. The locator device of claim 8 , further comprising memory for storing identifying information of a subscriber associated with the locator device.

11. The locator device of claim 8 , further comprising a processor for initiating a multiparty call between a party answering the voice channel call and the party that transmitted the activation message.

12. The locator device of claim 8 disguised as an accessory item.

13. The locator device of claim 8 , further comprising a global positioning system component.

14. The locator device of claim 8 , further comprising a processor for returning the device to lower power inactive mode.