Logitech Media Server (LMS) squeezebox integration - unable to set volume

I am calling squeezebox.call_method trying to set volume (relative/absolute value) for a media player but it’s doing nothing. Could someone please help?

This works (pause):

service: squeezebox.call_method
metadata: {}
data:
  command: pause
  parameters: 1
target:
  entity_id: media_player.foo

This (and all kind of variants) does not:

service: squeezebox.call_method
metadata: {}
data:
  command: mixer
  parameters: volume 0
target:
  entity_id: media_player.foo

Hi Jose, why not using

service: media_player.volume_set