Index: apps/app_voicemail.c
===================================================================
--- apps/app_voicemail.c	(revision 42945)
+++ apps/app_voicemail.c	(working copy)
@@ -3841,7 +3841,7 @@
 		return 0;
 	}
 
-	cid = ast_variable_retrieve(msg_cfg, "message", "callerid");
+	cid = ast_strdupa(ast_variable_retrieve(msg_cfg, "message", "callerid"));
 	duration = ast_variable_retrieve(msg_cfg, "message", "duration");
 	category = ast_variable_retrieve(msg_cfg, "message", "category");
 
@@ -6462,7 +6462,7 @@
 		return 0;
 	}
 
-	cid = ast_variable_retrieve(msg_cfg, "message", "callerid");
+	cid = ast_strdupa(ast_variable_retrieve(msg_cfg, "message", "callerid"));
 
 	context = ast_variable_retrieve(msg_cfg, "message", "context");
 	if (!strncasecmp("macro",context,5)) /* Macro names in contexts are useless for our needs */