Add details about flash and wait to doxygen about DTMF.

Reformat the lines to break at column 80.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@38521 65c4cc65-6c06-0410-ace0-fbb531ad65f3

include/asterisk/app.h

@@ -144,12 +144,17 @@ void ast_unreplace_sigchld(void);
   \brief Send DTMF to a channel
 
   \param chan    The channel that will receive the DTMF frames
-  \param peer    (optional) Peer channel that will be autoserviced while the primary
+  \param peer    (optional) Peer channel that will be autoserviced while the
-                 channel is receiving DTMF
+                 primary channel is receiving DTMF
-  \param digits  This is a string of characters representing the DTMF digits to be sent
+  \param digits  This is a string of characters representing the DTMF digits
-                 to the channel.  Valid characters are "0123456789*#abcdABCD".
+                 to be sent to the channel.  Valid characters are
-  \param between This is the number of milliseconds to wait in between each DTMF digit.
+                 "0123456789*#abcdABCD".  Note: You can pass arguments 'f' or
-                 If zero milliseconds is specified, then the default value of 100 will be used.
+                 'F', if you want to Flash the channel (if supported by the
+                 channel), or 'w' to add a 500 millisecond pause to the DTMF
+                 sequence.
+  \param between This is the number of milliseconds to wait in between each
+                 DTMF digit.  If zero milliseconds is specified, then the
+                 default value of 100 will be used.
 */
 int ast_dtmf_stream(struct ast_channel *chan, struct ast_channel *peer, const char *digits, int between);