From a5e3a8822bf491516ac3d7ff0fc8ed18f5e26124 Mon Sep 17 00:00:00 2001
From: Daniel-Constantin Mierla <miconda@gmail.com>
Date: Thu, 6 Apr 2017 15:14:45 +0200
Subject: [PATCH] kamailio.cfg: handle retransmissions also for request within
 dialog

- skip ACK, it is not a standard transaction by itself

(cherry picked from commit 868f9996f39dd76707ed09fce980893bab7c31bc)
---
 etc/kamailio.cfg | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/etc/kamailio.cfg b/etc/kamailio.cfg
index cf8df43ae92..b176b546431 100644
--- a/etc/kamailio.cfg
+++ b/etc/kamailio.cfg
@@ -470,18 +470,20 @@ request_route {
 		exit;
 	}
 
+	# handle retransmissions
+	if (!is_method("ACK")) {
+		if(t_precheck_trans()) {
+			t_check_trans();
+			exit;
+		}
+		t_check_trans();
+	}
+
 	# handle requests within SIP dialogs
 	route(WITHINDLG);
 
 	### only initial requests (no To tag)
 
-	# handle retransmissions
-	if(t_precheck_trans()) {
-		t_check_trans();
-		exit;
-	}
-	t_check_trans();
-
 	# authentication
 	route(AUTH);