Hi,

in conference xml_list some tags has "_" but some use "-"

"_" works well but "-" causing problems e.g. when convert to json it's ok to use conference.last_talking but to get the input-volume value it has to be conference["input-volume"], and in some other cased there's no such work around and I have to go through all tags and replace "-"s to "_"s.

I understand "-" in xml is totally valid but would it be better to keep it consistent ? 

        <last_talking>0</last_talking>
        <energy>300</energy>
        <volume_in>0</volume_in>
        <volume_out>0</volume_out>
        <output-volume>0</output-volume>
        <input-volume>0</input-volume>
        <auto-adjusted-input-volume>0</auto-adjusted-input-volume>