New Undocumented Configuration Settings T48S

[David123321]

##V81 NEW##
#multicast.listen_address.X.volume =
#multicast.receive.enhance_volume =
#multicast.receive.use_speaker =
#multicast.listen_address.X.channel=
#multicast.paging_address.X.channel=

There is no documentation for these options. How can I make the paging volume as loud as possible on the T48S phones? By default it is a child's whisper but I want to go so loud that it almost blows out the speakers on these phones. How do I do this?
Right now we have this set for paging: voice.handfree.spk_vol = 15 but multicast.listen_address.1.volume= looks like it would be even better
Specifically these two options I want to know how they are different from voice.handfree.spk_vol. voice.handfree.spk_vol already affects paging volume so what do these do:
multicast.receive.enhance_volume=
multicast.listen_address.1.volume=