Index: channels/chan_zap.c
===================================================================
--- channels/chan_zap.c	(revision 83864)
+++ channels/chan_zap.c	(working copy)
@@ -5204,7 +5204,6 @@
 {
 	struct zt_pvt *p = ast->tech_pvt;
 	int res;
-	unsigned char outbuf[4096];
 	int index;
 	index = zt_get_index(ast, p, 0);
 	if (index < 0) {
@@ -5255,7 +5254,7 @@
 	/* Return if it's not valid data */
 	if (!frame->data || !frame->datalen)
 		return 0;
-	if (frame->datalen > sizeof(outbuf) * 2) {
+	if (frame->datalen > 4096 * 2) {
 		ast_log(LOG_WARNING, "Frame too large\n");
 		return 0;
 	}