Subaru 2015 BRZ Owner's Manual page 326

Message
The phonebook is empty.
The call cannot be placed.
There is no phone number information.
You cannot add more digits.
There are no phones set up to make calls.
The phone is not connected.
Please check the phone.
Please check the USB.
Please check the iPod.
Please check the phone.
Loading Voice Recognition...
[Cancelled]
* When a correct command is recognized, the system speaks back the same voice command.
Cause
Displayed when there is no data registered in the
phonebook.
Displayed when that information does not exist.
Displayed when the maximum number of telephone
number digits has been exceeded.
Displayed when a Bluetooth-supporting phone is not
registered.
Displayed when a Bluetooth-supporting phone is not
connected.
Displayed when USB is disconnected.
Displayed when the iPod battery is depleted.
Displayed when the iPod is disconnected.
Displayed when the phone is disconnected.
Displayed when the phone battery is depleted.
Displayed when the phone link is disconnected.
Displayed when voice recognition cannot yet be
started.
Action
Register in the phonebook before using.
Speak the information again.
Make a call to the entered phone number or delete
digits before entering.
Check that a Bluetooth-supporting phone is
registered.
Check that a Bluetooth-supporting phone has been
connected.
Check that USB is connected correctly.
Check the iPod battery level.
Check that the iPod is connected correctly.
Check the phone battery level.
Check that the phone is connected correctly.
Wait for a few moments before operating.
Reference
Other 325