diff --git a/coreapi/bellesip_sal/sal_op_impl.c b/coreapi/bellesip_sal/sal_op_impl.c
index 4b12a653f..84957f36a 100644
--- a/coreapi/bellesip_sal/sal_op_impl.c
+++ b/coreapi/bellesip_sal/sal_op_impl.c
@@ -115,10 +115,11 @@ int sal_op_send_request(SalOp* op, belle_sip_request_t* request) {
 	belle_sip_client_transaction_t* client_transaction;
 	belle_sip_provider_t* prov=op->base.root->prov;
 	belle_sip_header_route_t* route_header;
+	MSList* iterator;
 	if (!op->dialog) {
 		/*don't put route header if dialog is in confirmed state*/
-		if (sal_op_get_route_address(op)) {
-			route_header = belle_sip_header_route_create(BELLE_SIP_HEADER_ADDRESS(sal_op_get_route_address(op)));
+		for(iterator=(MSList*)sal_op_get_route_addresses(op);iterator!=NULL;iterator=iterator->next) {
+			route_header = belle_sip_header_route_create(BELLE_SIP_HEADER_ADDRESS(iterator->data));
 			belle_sip_message_add_header(BELLE_SIP_MESSAGE(request),BELLE_SIP_HEADER(route_header));
 		}
 	}
diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index 763f59058..4b3d1ea50 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -2461,9 +2461,25 @@ LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const
 
 	if (linphone_core_get_route(lc)) {
 		sal_op_set_route(call->op,linphone_core_get_route(lc));
-	} else if (proxy && linphone_proxy_config_get_service_route(proxy)) {
+	}
+/*
+* rfc3608
+6.1.  Procedures at the UA
+
+ /.../
+   For example, some devices will use locally-configured
+   explicit loose routing to reach a next-hop proxy, and others will use
+   a default outbound-proxy routing rule.  However, for the result to
+   function, the combination MUST provide valid routing in the local
+   environment.  In general, the service route set is appended to any
+   locally configured route needed to egress the access proxy chain.
+   Systems designers must match the service routing policy of their
+   nodes with the basic SIP routing policy in order to get a workable
+   system.
+*/
+	if (proxy && linphone_proxy_config_get_service_route(proxy)) {
 		/*set service route*/
-		sal_op_set_route_address(call->op,linphone_proxy_config_get_service_route(proxy));
+		sal_op_add_route_address(call->op,linphone_proxy_config_get_service_route(proxy));
 	} /*else, no route*/
 
 
diff --git a/coreapi/sal.c b/coreapi/sal.c
index 5809b2617..3a9806a9d 100644
--- a/coreapi/sal.c
+++ b/coreapi/sal.c
@@ -273,16 +273,34 @@ void sal_op_set_contact(SalOp *op, const char *contact){
 }
 
 void sal_op_set_route(SalOp *op, const char *route){
-	SET_PARAM(op,route);
+	char* route_string=(void *)0;
+	SalOpBase* op_base = (SalOpBase*)op;
+	if (op_base->route_addresses) {
+		ms_list_for_each(op_base->route_addresses,(void (*)(void *))sal_address_destroy);
+		op_base->route_addresses=ms_list_free(op_base->route_addresses);
+	}
+	if (route) {
+		op_base->route_addresses=ms_list_append(NULL,NULL);
+		assign_address((SalAddress**)&(op_base->route_addresses->data),route);
+		route_string=sal_address_as_string((SalAddress*)op_base->route_addresses->data); \
+	}
+	assign_string(&op_base->route,route_string); \
+	if(route_string) ortp_free(route_string);
 }
-const SalAddress* sal_op_get_route_address(const SalOp *op) {
-	return ((SalOpBase*)op)->route_address;
+const MSList* sal_op_get_route_addresses(const SalOp *op) {
+	return ((SalOpBase*)op)->route_addresses;
 }
 void sal_op_set_route_address(SalOp *op, const SalAddress *address){
 	char* address_string=sal_address_as_string(address); /*can probably be optimized*/
 	sal_op_set_route(op,address_string);
 	ms_free(address_string);
 }
+void sal_op_add_route_address(SalOp *op, const SalAddress *address){
+	SalOpBase* op_base = (SalOpBase*)op;
+	if (op_base->route_addresses) {
+		op_base->route_addresses=ms_list_append(op_base->route_addresses,(void*)address);
+	}
+}
 void sal_op_set_from(SalOp *op, const char *from){
 	SET_PARAM(op,from);
 }
diff --git a/coreapi/sal.h b/coreapi/sal.h
index 281397143..2918dbe92 100644
--- a/coreapi/sal.h
+++ b/coreapi/sal.h
@@ -215,7 +215,7 @@ void sal_media_description_set_dir(SalMediaDescription *md, SalStreamDir stream_
 typedef struct SalOpBase{
 	Sal *root;
 	char *route; /*or request-uri for REGISTER*/
-	SalAddress* route_address;
+	MSList* route_addresses; /*list of SalAddress* */
 	char *contact;
 	SalAddress* contact_address;
 	char *from;
@@ -391,6 +391,7 @@ void sal_op_set_contact(SalOp *op, const char *contact);
 void sal_op_set_contact_address(SalOp *op, const SalAddress* address);
 void sal_op_set_route(SalOp *op, const char *route);
 void sal_op_set_route_address(SalOp *op, const SalAddress* address);
+void sal_op_add_route_address(SalOp *op, const SalAddress* address);
 void sal_op_set_from(SalOp *op, const char *from);
 void sal_op_set_from_address(SalOp *op, const SalAddress *from);
 void sal_op_set_to(SalOp *op, const char *to);
@@ -407,7 +408,7 @@ const SalAddress *sal_op_get_to_address(const SalOp *op);
 const char *sal_op_get_contact(const SalOp *op);
 const SalAddress *sal_op_get_contact_address(const SalOp *op);
 const char *sal_op_get_route(const SalOp *op);
-const SalAddress* sal_op_get_route_address(const SalOp *op);
+const MSList* sal_op_get_route_addresses(const SalOp *op);
 const char *sal_op_get_proxy(const SalOp *op);
 /*for incoming requests, returns the origin of the packet as a sip uri*/
 const char *sal_op_get_network_origin(const SalOp *op);