asterisk: Fix wrong IP address arg creating IMS_CallPars

This field is not yet really used because we are not doing any RTP so
far, so the previous error was harmless. We are at most sending it in
the SDP.

Change-Id: Iac0c240d785131954c4d8a2df90655e2a5ec3666
diff --git a/asterisk/Asterisk_Tests.ttcn b/asterisk/Asterisk_Tests.ttcn
index a96e66a..c4cad38 100644
--- a/asterisk/Asterisk_Tests.ttcn
+++ b/asterisk/Asterisk_Tests.ttcn
@@ -79,7 +79,7 @@
 }
 
 function f_init_IMS_ConnHdlrPars(integer idx := 1) runs on test_CT return IMS_ConnHdlrPars {
-	var template (value) IMS_CallPars cp := t_IMS_CallPars(mp_local_sip_host, 1234 + 2*idx);
+	var template (value) IMS_CallPars cp := t_IMS_CallPars(mp_local_ims_host, 1234 + 2*idx);
 	var template (value) IMS_ConnHdlrPars pars := t_IMS_Pars(mp_local_ims_host,
 								 mp_local_ims_port,
 								 mp_ims_domain,