diff --git a/kamailio/defs.cfg b/kamailio/defs.cfg
index a793f99..b80bfc8 100644
--- a/kamailio/defs.cfg
+++ b/kamailio/defs.cfg
@@ -118,4 +118,12 @@
 #!endif
 #!endif
 
+#!ifndef KZ_DISABLE_WEBSOCKETS_REGISTRAR_PORT
+#!trydef KZ_WEBSOCKETS_REGISTRAR_PORT 7000
+#!endif
+
+#!ifndef KZ_DISABLE_TLS_REGISTRAR_PORT
+#!trydef KZ_TLS_REGISTRAR_PORT 7000
+#!endif
+
 # vim: tabstop=4 softtabstop=4 shiftwidth=4 expandtab
diff --git a/kamailio/local.cfg b/kamailio/local.cfg
index e232100..874ba23 100644
--- a/kamailio/local.cfg
+++ b/kamailio/local.cfg
@@ -83,6 +83,30 @@
 ##     destination. This reduces performance.
 mhomed=0
 
+################################################################################
+## KZ_DISABLE_REGISTRAR_PORTS
+################################################################################
+## This parameter is OPTIONAL.
+##     It will disable publishing single proxy port on registrar success messages
+##     By default single port proxy is send on registrar success messages
+##     for websockets/tls protocols. the default port is 7000
+##     which enables config less in freeswitch for handling webrtc/tls
+##     ie, no certs in freeswitch, no webrtc/tls listeners on freeswitch
+##     by disabling single port proxy, ecallmgr needs to be started with
+##     'use_transport_for_fs_path' set to true in its environment configuration
+##
+###!define KZ_DISABLE_WEBSOCKETS_REGISTRAR_PORT 1
+###!define KZ_DISABLE_TLS_REGISTRAR_PORT 1
+##
+## you can also change the ports used for single port redirect
+##!define KZ_WEBSOCKETS_REGISTRAR_PORT 5060
+##!define KZ_TLS_REGISTRAR_PORT 5060
+##
+## also available for udp/tcp if it works for you
+##!define KZ_UDP_REGISTRAR_PORT 7000
+##!define KZ_TCP_REGISTRAR_PORT 7000
+
+
 ################################################################################
 ## SIP traffic mirroring to SIP_TRACE server
 ################################################################################
diff --git a/kamailio/registrar-role.cfg b/kamailio/registrar-role.cfg
index 1531570..0da7f73 100644
--- a/kamailio/registrar-role.cfg
+++ b/kamailio/registrar-role.cfg
@@ -291,7 +291,37 @@ route[SAVE_LOCATION]
        $var(ip) = "[" + $Ri + "]";
     }
 
-    $var(port) = $Rp;
+    # allow port redirection on registration
+    switch($proto)
+    {
+        #!ifdef KZ_WEBSOCKETS_REGISTRAR_PORT
+        case "ws":
+        case "wss":
+           $var(port) = KZ_WEBSOCKETS_REGISTRAR_PORT;
+           break;
+        #!endif
+            
+        #!ifdef KZ_TLS_REGISTRAR_PORT
+        case "tls":
+           $var(port) = KZ_TLS_REGISTRAR_PORT;
+           break;
+        #!endif
+            
+        #!ifdef KZ_UDP_REGISTRAR_PORT
+        case "udp":
+           $var(port) = KZ_UDP_REGISTRAR_PORT;
+           break;
+        #!endif
+            
+        #!ifdef KZ_TCP_REGISTRAR_PORT
+        case "tcp":
+           $var(port) = KZ_UDP_REGISTRAR_PORT;
+           break;
+        #!endif
+
+        default:
+           $var(port) = $Rp;
+    }
 
     $var(AdvIP) = $RAi;
     if(af==INET6) {