=============================================================================
Client->Server:

	x positive			+ unsure but added	
	* put only			o unsure but deleted

-----------------------------------------------------------------------------
Headers		OPT	DESC	PARAM	PAUS	PLAY	REC	SETUP	TRDN
-----------------------------------------------------------------------------
Accept			x	*
Accept-enc		x	*
Accept-lang	x	x	x	x	x	x	x	x
Authorization	x	x	x	x	x	x	x	x
Bandwidth	x	x	x	x	x	x	x	x
Blocksize	 	x	x	x	x	x	x
Cache-control							x
Conference						+	x
Connection	x	x	x	x	x	x	x	x
Content-enc		o	*
Content-lang
Content-length		o	*
Content-type		o	*
Date		x	x	x	x	x	x	x	x
Expires			o
From		x	x	x	x	x	x	x	x
If-modified-s		x					x
Last-modified		o	*
Public		x	x	x	x	x	x	x	x
Range					x	x
Referer		x	x	x	x	x	x	x	x
Retry-after	x	x	x	x	x	x	x	x
Scale						x	x
Session			x	x	x	x	x		x
Server		x	x	x	x	x	x	x	x
Speed						x
Transport							x
User-agent	x	x	x	x	x	x	x	x
Via		x	x	x	x	x	x	x	x
WWW-authent	x	x	x	x	x	x	x	x
=============================================================================