Can't set volume on base station (hub.redsky)
### Describe the Bug
I'm working on adding support for setting the volume of the keypad/base station to ring-mqtt but ran into a very strange issue.  Setting the volume seems super simple, just "device.setVolume(0.50)" basically the same as a multi-level switch/fan.  Indeed this works perfectly for the security-keypad, but attempting to do this for the base station simply does nothing.  If I run in debug I can see the command being sent:

"device":{"v1":{"volume":0.5}}}

But the volume of the device does not change.  However, doing exactly the same with security-keypad works fine.  I know this is really weird and seems super straightforward, but I just can't get it to work.

### To Reproduce
`device.setVolume(0.50)
`
Check that volume did not change.  I receive no errors, it appears to work.  If I call the function on non-supported devices I get a proper error that I can only set volume on security-panel and hub-redsky devices.

### Expected behavior
Volume for hub should change just like for keypad.
