Asterisk 13 / FreePBX 13 and Australian Sounds

I’ve downloaded the sounds from downloads.asterisk.org/pub/telephony/sounds/asterisk-core-sounds-en_AU-alaw-current.tar.gz and placed the files at /var/lib/asterisk/sounds/en_AU/

Under SIP Settings > Chan SIP Settings > Other SIP Settings I’ve put:

language = en_AU

It still loads the default voicemail sounds, after restart and reload.

Any suggestions?