Also a rewrite of a Reason header in route[0] is not possible: route[0] ... if(search("Reason")) { replace("Reason", "ReasonIsRewrited"); } ... Is this a special header? -- View this message in context: http://opensips-open-sip-server.1449251.n2.nabble.com/reason-headers-tp7137781p7149721.html Sent from the OpenSIPS - Users mailing list archive at Nabble.com.