Index: channels/chan_sip.c
===================================================================
--- channels/chan_sip.c	(revision 365570)
+++ channels/chan_sip.c	(working copy)
@@ -12404,8 +12404,8 @@
 		} else {
 			/* Even if we are using RPID, we shouldn't leak information in the From if the user wants
 			 * their callerid restricted */
-			l = CALLERID_UNKNOWN;
-			n = l;
+			l = "anonymous";
+			n = CALLERID_UNKNOWN;
 			d = FROMDOMAIN_INVALID;
 		}
 	}