git-svn-id: http://yate.null.ro/svn/yate/trunk@318 acf43c95-373e-0410-b603-e72c3f656dc1
YSIP channel supports reinvite and config file (for codecs for now). git-svn-id: http://yate.null.ro/svn/yate/trunk@180 acf43c95-373e-0410-b603-e72c3f656dc1