--- chan_iax2.c.patched	2009-05-04 19:29:37.000000000 -0300
+++ chan_iax2.c	2009-05-04 19:30:13.000000000 -0300
@@ -3611,9 +3611,6 @@
 	/* If we have a time that the frame arrived, always use it to make our timestamp */
 	if (delivery && !ast_tvzero(*delivery)) {
 		ms = ast_tvdiff_ms(*delivery, p->offset);
-		if (ms < 0) {
-			ms = 0;
-		}
 		if (option_debug > 2 && iaxdebug)
 			ast_log(LOG_DEBUG, "calc_timestamp: call %d/%d: Timestamp slaved to delivery time\n", p->callno, iaxs[p->callno]->peercallno);
 	} else {