I am testing out the new hot desking feature and it seems to be working well! The question and issues I can't seem to find is, can I customize the ring tones? e.g. Ring 1 for IVR Ring 2 External etc. I know we can't use "custom" templates for the hot desking, but can we at least change different tones. I tried changing it directly on the phone (yealink 42G/46G), but after a log in/log out, the tones reset.