--- chan_sip.orig       2007-12-14 00:10:51.098458287 +0000
+++ chan_sip.c  2007-12-14 00:11:46.959816383 +0000
@@ -13485,7 +13485,8 @@
                        }

                        /* Save Record-Route for any later requests we make on this dialogue */
-                       build_route(p, req, 1);
+                       if(!reinvite)
+                               build_route(p, req, 1);
                }

                if (p->owner && (p->owner->_state == AST_STATE_UP) && (bridgepeer = ast_bridged_channel(p->owner))) { /* if this is a re-invite */