3.5Lpf Handset App Activated by Server Message while Phone Powered-Off or Out-of-Coverage (Pri: Med)

If the phone is powered off or out-of-coverage when the server message is issued, the activation is deferred until the phone is powered-on and/or brought back in-coverage. In this case, the LPS Server notifies the Owner that the phone was powered-on, either by making an out-bound IVR call, sending an SMS, or sending an email. The IVR call also reports the phone location and battery status.

3.6Lpf Handset App Commanded to Report Location (Pri: Hi)

After the initial activation and location report, the LPF server can command the LPF App to report location again. This function returns to the LPF server a high-accuracy device location (possibly computed from multiple separate AGPS location calculations) as well as the battery level. NOTE: If the phone is powered-off or out-of-coverage when the command is issued, the operation is deferred until the device is turned back on and/or comes back into coverage.

The UI flow is as follows:

• Temporarily hide instructions to “press any button to call phone owner”.

• Display “Reporting location” status while the reporting process is occurring.

• Compute high-accuracy location and report to LPF server.

• Play a full Loud Ring audio cycle. (The Loud Ring helps to prevent LPF misuse as a locate function.)

• Flash Display backlight from full off to full on during loud ring cycle.

• Return to the standard “I’m a lost phone” display, with instructions to “press any button to call phone owner” displayed.

3.7Lpf Handset App Commanded to Ring Loudly (Pri: Hi)

After the initial activation and location report, the LPF server can command the LPF App to ring loudly again.

• The locate operation always plays a full Loud Ring audio cycle.

  • The duration of the Loud Ring audio cycle is TBD, but expected to be roughly 30 seconds.

• Display backlight flashes from full off to full on during loud ring cycle.

• When completed, the app returns to the standard “I’m a lost phone” display, with backlight off. With instructions to “press any button to call phone owner” displayed.

3.8Lpf Handset App Commanded to Erase Personal Data (Pri: Med)

When the phone is locked, the LPF Handset App will optionally (if the capability is enabled on this phone) activate a personal data backup operation. Later, the LPF Server can command the LPF Handset application to erase the phone’s personal data (contact list, SMS history, photos, etc.)

At a minimum, the phone should display a status string like “Erasing personal data” while the data is being erased.

This operation, like all other LPF Server-initiated operations, may be deferred until the phone is powered-on and returned to in-coverage status.

3.9Deactivate lpf Service after Recovery (Pri: Hi)

Upon recovery, the Owner can deactivate the LPF application by entering the Unlock Code specified when the LPF service was activated. The flow is as follows:

• On-screen instructions (sitting beside the “press any button to call owner” string) instruct the Owner to press and hold a specific button (e.g. “End Button”) to present the Unlock Code Entry screen.

• Instructions on the Unlock Code Entry Screen tell the Owner to enter the code and press the “Send Button” to unlock the phone.

• LPF Handset App sends entered code to LPF Server for verification.

• If the entered code is correct, the LPF Handset App displays “Unlock successful. Congratulations on finding your phone!”, then terminates.