diff -urN siproxd-0.8.3/src/siproxd.h siproxd-0.8.3-patch/src/siproxd.h
--- siproxd-0.8.3/src/siproxd.h	2019-11-09 09:42:04.000000000 -0800
+++ siproxd-0.8.3-patch/src/siproxd.h	2020-09-04 20:02:47.961246801 -0700
@@ -282,13 +282,13 @@
 #define TCP_IDLE_TO	300	/* TCP connection idle timeout in seconds */
 #define TCP_CONNECT_TO	500	/* TCP connect() timeout in msec */
 
-#define URLMAP_SIZE	512	/* number of URL mapping table entries	*/
+#define URLMAP_SIZE	128	/* number of URL mapping table entries	*/
 				/* this limits the number of clients!	*/
 
 #define SOURCECACHE_SIZE 256	/* number of return addresses		*/
 #define DEJITTERLIMIT	1500000	/* max value for dejitter configuration */
 
-#define RTPPROXY_SIZE	1024	/* number of rtp proxy entries		*/
+#define RTPPROXY_SIZE	256	/* number of rtp proxy entries		*/
 				/* this limits the number of calls!	*/
 
 #define BUFFER_SIZE	8196	/* input buffer for read from socket	*/