Index: func_curl.c
===================================================================
--- func_curl.c (revision 46551)
+++ func_curl.c (working copy)
@@ -57,7 +57,6 @@
        size_t size;
 };

-
 static void *myrealloc(void *ptr, size_t size)
 {
        /* There might be a realloc() out there that doesn't like reallocing
@@ -114,6 +113,7 @@
 static int acf_curl_exec(struct ast_channel *chan, char *cmd, char *info, char *buf, size_t len)
 {
        struct ast_module_user *u;
+       char tmp[1024] = "";
        struct MemoryStruct chunk = { NULL, 0 };
        AST_DECLARE_APP_ARGS(args,
                AST_APP_ARG(url);
@@ -130,7 +130,7 @@
        u = ast_module_user_add(chan);

        AST_STANDARD_APP_ARGS(args, info);
-
+       pbx_substitute_variables_helper(chan, args.url, tmp, sizeof(tmp) - 1);
        if (!curl_internal(&chunk, args.url, args.postdata)) {
                if (chunk.memory) {
                        chunk.memory[chunk.size] = '\0';