asterisk: f_TC_ims_registration_423_interval_too_brief: Fix To address 'tag' attribute

Change-Id: Ifd79d9cdc03f87f104a66564455e57bb7a462fe8
---
M asterisk/Asterisk_Tests.ttcn
1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/asterisk/Asterisk_Tests.ttcn b/asterisk/Asterisk_Tests.ttcn
index 9502ee8..6fe5577 100644
--- a/asterisk/Asterisk_Tests.ttcn
+++ b/asterisk/Asterisk_Tests.ttcn
@@ -580,6 +580,8 @@
 
 /* Test IMS re-registration based on Expires (TS 24.229 5.1.1.4.1, RFC 3261 10.3)*/
 private function f_TC_ims_registration_423_interval_too_brief(charstring id) runs on IMS_ConnHdlr {
+	var template (value) To to_addr;
+
 	f_create_sip_expect(valueof(ts_SipUrl_from_Addr_Union(g_pars.subscr.registrar_sip_record.addr)));
 
 	var template (present) PDU_SIP_Request exp_req :=
@@ -591,6 +593,9 @@
 				expires := tr_Expires(int2str(g_pars.subscr.registrar_expires)));
 	SIP.receive(exp_req) -> value g_rx_sip_req;
 
+	to_addr := g_rx_sip_req.msgHeader.toField;
+	to_addr.toParams := f_sip_param_set(to_addr.toParams, "tag", f_sip_rand_tag());
+
 	/* Double it and expect UAC to use it. */
 	g_pars.subscr.registrar_expires := g_pars.subscr.registrar_expires * 2;
 
@@ -599,7 +604,7 @@
 	tx_resp := ts_SIP_Response_423_Interval_Too_Brief(
 				g_rx_sip_req.msgHeader.callId.callid,
 				g_rx_sip_req.msgHeader.fromField,
-				g_rx_sip_req.msgHeader.toField,
+				to_addr,
 				g_rx_sip_req.msgHeader.via,
 				g_rx_sip_req.msgHeader.cSeq.seqNumber,
 				minExpires := ts_MinExpires(int2str(g_pars.subscr.registrar_expires)),

