Index: src/mod/endpoints/mod_sofia/sofia_glue.c
===================================================================
--- src/mod/endpoints/mod_sofia/sofia_glue.c	(revision 16485)
+++ src/mod/endpoints/mod_sofia/sofia_glue.c	(working copy)
@@ -1457,6 +1457,10 @@
 	sofia_destination_t *dst = NULL;
 	sofia_cid_type_t cid_type = tech_pvt->profile->cid_type;
 	
+	//int failover_flag = 0;
+	sip_cseq_t *cseq = NULL;
+	//char *sip_invite_cseq = NULL;
+	
 	rep = switch_channel_get_variable(channel, SOFIA_REPLACES_HEADER);
 
 	switch_assert(tech_pvt != NULL);
@@ -1503,8 +1507,11 @@
 		const char *invite_from_params = switch_channel_get_variable(tech_pvt->channel, "sip_invite_from_params");
 		const char *from_var = switch_channel_get_variable(tech_pvt->channel, "sip_from_uri");
 		const char *from_display = switch_channel_get_variable(tech_pvt->channel, "sip_from_display");
-
-
+		const char *invite_from_tag = switch_channel_get_variable(tech_pvt->channel, "sip_invite_from_tag");
+		const char *invite_to_tag = switch_channel_get_variable(tech_pvt->channel, "sip_invite_to_tag");
+		sip_from_t *from = NULL;
+		sip_to_t *to = NULL;
+		
 		if (zstr(tech_pvt->dest)) {
 			switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(tech_pvt->session), SWITCH_LOG_ERROR, "URL Error!\n");
 			return SWITCH_STATUS_FALSE;
@@ -1544,6 +1551,8 @@
 											sipip);
 		}
 		
+		
+
 		if (from_var) {
 			if (strncasecmp(from_var, "sip:", 4) || strncasecmp(from_var, "sips:", 5)) {
 				use_from_str = switch_core_session_strdup(tech_pvt->session, from_var);
@@ -1669,11 +1678,19 @@
 			}
 		}
 
+		from = sip_from_make(tech_pvt->profile->home, from_str);
+		if (!zstr(invite_from_tag))
+						sip_from_tag(tech_pvt->profile->home,from,invite_from_tag);
+  
+		to = sip_to_make(tech_pvt->profile->home, to_str);
+		if (!zstr(invite_to_tag))
+						sip_to_tag(tech_pvt->profile->home,to,invite_to_tag);
+		
 		tech_pvt->nh = nua_handle(tech_pvt->profile->nua, NULL,
 								  NUTAG_URL(url_str),
 								  TAG_IF(call_id, SIPTAG_CALL_ID_STR(call_id)),
-								  SIPTAG_TO_STR(to_str), 
-								  SIPTAG_FROM_STR(from_str),
+								  SIPTAG_TO(to), 
+								  SIPTAG_FROM(from),
 								  SIPTAG_CONTACT_STR(invite_contact),
 								  TAG_END());
 
@@ -1825,7 +1842,12 @@
 		switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(tech_pvt->session), SWITCH_LOG_DEBUG, "%s Setting proxy route to %s\n", route_uri, switch_channel_get_name(channel));
 		tech_pvt->route_uri = switch_core_session_strdup(tech_pvt->session, route_uri);
 	}
-
+	
+	if (( val = switch_channel_get_variable(tech_pvt->channel, "sip_invite_cseq"))) {
+		uint32_t callsequence = (uint32_t)strtoul(val,NULL,10);
+		cseq = sip_cseq_create(tech_pvt->profile->home, callsequence, SIP_METHOD_INVITE);
+	}
+		
 	switch_channel_clear_flag(channel, CF_MEDIA_ACK);
 
 	if (sofia_use_soa(tech_pvt)) {
@@ -1845,6 +1867,7 @@
 				   TAG_IF(!zstr(route_uri), NUTAG_PROXY(route_uri)),
 				   TAG_IF(!zstr(route), SIPTAG_ROUTE_STR(route)),
 				   TAG_IF(tech_pvt->profile->minimum_session_expires, NUTAG_MIN_SE(tech_pvt->profile->minimum_session_expires)),
+				   TAG_IF(cseq,SIPTAG_CSEQ(cseq)),
 				   SOATAG_ADDRESS(tech_pvt->adv_sdp_audio_ip),
 				   SOATAG_USER_SDP_STR(tech_pvt->local_sdp_str),
 				   SOATAG_REUSE_REJECTED(1),
@@ -1871,6 +1894,7 @@
 				   TAG_IF(!zstr(route_uri), NUTAG_PROXY(route_uri)),
 				   TAG_IF(!zstr(route), SIPTAG_ROUTE_STR(route)),
 				   TAG_IF(tech_pvt->profile->minimum_session_expires, NUTAG_MIN_SE(tech_pvt->profile->minimum_session_expires)),
+				   TAG_IF(cseq,SIPTAG_CSEQ(cseq)),
 				   NUTAG_MEDIA_ENABLE(0),
 				   SIPTAG_CONTENT_TYPE_STR("application/sdp"),
 				   SIPTAG_PAYLOAD_STR(tech_pvt->local_sdp_str),