Index: app_read.c
===================================================================
--- app_read.c	(revision 42243)
+++ app_read.c	(working copy)
@@ -192,6 +192,8 @@
 				}
 				res = 0;
 			} else {
+				if (!ast_strlen_zero(tmp))
+					pbx_builtin_setvar_helper(chan, varname, tmp);
 				if (option_verbose > 2)
 					ast_verbose(VERBOSE_PREFIX_3 "User disconnected\n");
 			}