Index: main/pbx.c
===================================================================
--- main/pbx.c	(revision 240666)
+++ main/pbx.c	(working copy)
@@ -6822,6 +6822,10 @@
 				tmpchan = NULL;
 				res = -1;
 			} else {
+				/* Give the other channel a chance to react to the masquerade before it's done. */
+				ast_channel_unlock(chan);
+				usleep(1);
+				ast_channel_lock(chan);
 				/* Grab the locks and get going */
 				ast_channel_lock(tmpchan);
 				ast_do_masquerade(tmpchan);