Index: sip.conf.sample
===================================================================
--- sip.conf.sample	(revision 234093)
+++ sip.conf.sample	(working copy)
@@ -366,7 +366,7 @@
                                 ; purpose of setting up a direct media path. If a reINVITE is
                                 ; needed to switch a media stream to inactive (when placed on
                                 ; hold) or to T.38, it will still be done, regardless of this
-                                ; setting.
+                                ; setting. Note that direct T.38 is not supported.
 
 ;directrtpsetup=yes             ; Enable the new experimental direct RTP setup. This sets up
                                 ; the call directly with media peer-2-peer without re-invites.