# 
# patch "res/res_agi.c"
#  from [f10428af1545961ad59af8fabad7fc896c287d66]
#    to [ab40cd8ab6c03e252e6fdbe7c295c11b7edcef55]
# 
--- res/res_agi.c
+++ res/res_agi.c
@@ -50,6 +50,7 @@
 #include "asterisk/manager.h"
 #include "asterisk/utils.h"
 #include "asterisk/lock.h"
+#include "asterisk/strings.h"
 #include "asterisk/agi.h"
 
 #define MAX_ARGS 128
@@ -1077,7 +1078,14 @@
 
 	if (argc != 3)
 		return RESULT_SHOWUSAGE;
-	pbx_retrieve_variable(chan, argv[2], &ret, tempstr, sizeof(tempstr), NULL);
+
+	/* check if we want to execute an ast_custom_function */
+	if (!ast_strlen_zero(argv[2]) && (argv[2][strlen(argv[2]) - 1] == ')')) {
+		ret = ast_func_read(chan, argv[2], tempstr, sizeof(tempstr));
+	} else {
+		pbx_retrieve_variable(chan, argv[2], &ret, tempstr, sizeof(tempstr), NULL);
+	}
+
 	if (ret)
 		fdprintf(agi->fd, "200 result=1 (%s)\n", ret);
 	else