Add Proceeding() application (#13025)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@129399 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/pbx.c

@@ -292,6 +292,7 @@ static int pbx_builtin_keepalive(struct ast_channel *, void *);
 static int pbx_builtin_resetcdr(struct ast_channel *, void *);
 static int pbx_builtin_setamaflags(struct ast_channel *, void *);
 static int pbx_builtin_ringing(struct ast_channel *, void *);
+static int pbx_builtin_proceeding(struct ast_channel *, void *);
 static int pbx_builtin_progress(struct ast_channel *, void *);
 static int pbx_builtin_congestion(struct ast_channel *, void *);
 static int pbx_builtin_busy(struct ast_channel *, void *);
@@ -591,6 +592,12 @@ static struct pbx_builtin {
 		"Verbose() application for finer grain control of output at custom verbose levels.\n"
 	},
 	
+	{ "Proceeding", pbx_builtin_proceeding,
+	"Indicate proceeding",
+	"  Proceeding(): This application will request that a proceeding message\n"
+	"be provided to the calling channel.\n"
+	},
+	
 	{ "Progress", pbx_builtin_progress,
 	"Indicate progress",
 	"  Progress(): This application will request that in-band progress information\n"
@@ -7221,6 +7228,15 @@ static void wait_for_hangup(struct ast_channel *chan, void *data)
 	} while(f);
 }
 
+/*!
+ * \ingroup applications
+ */
+static int pbx_builtin_proceeding(struct ast_channel *chan, void *data)
+{
+	ast_indicate(chan, AST_CONTROL_PROCEEDING);
+	return 0;
+}
+
 /*!
  * \ingroup applications
  */