Add documentation clarifying when 't' and 'T' can be used.

(closes issue #17021)
Reported by: kovzol
Tested by: lmadsen, kovzol, davidw, ebroad

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@255504 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_dial.c

@@ -336,11 +336,13 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 				</option>
 				<option name="t">
 					<para>Allow the called party to transfer the calling party by sending the
-					DTMF sequence defined in <filename>features.conf</filename>.</para>
+					DTMF sequence defined in <filename>features.conf</filename>. This setting does not perform policy enforcement on
+					transfers initiated by other methods.</para>
 				</option>
 				<option name="T">
 					<para>Allow the calling party to transfer the called party by sending the
-					DTMF sequence defined in <filename>features.conf</filename>.</para>
+					DTMF sequence defined in <filename>features.conf</filename>. This setting does not perform policy enforcement on
+					transfers initiated by other methods.</para>
 				</option>
 				<option name="U" argsep="^">
 					<argument name="x" required="true">

configs/sip.conf.sample

@@ -108,7 +108,8 @@ context=default                 ; Default context for incoming calls
                                 ; instead of the From: field.
 allowoverlap=no                 ; Disable overlap dialing support. (Default is yes)
 ;allowtransfer=no               ; Disable all transfers (unless enabled in peers or users)
-                                ; Default is enabled
+                                ; Default is enabled. The Dial() options 't' and 'T' are not
+                                ; related as to whether SIP transfers are allowed or not.
 ;realm=mydomain.tld             ; Realm for digest authentication
                                 ; defaults to "asterisk". If you set a system name in
                                 ; asterisk.conf, it defaults to that system name