diff --git a/coreapi/bellesip_sal/sal_impl.c b/coreapi/bellesip_sal/sal_impl.c
index daf746c79..9693226dd 100644
--- a/coreapi/bellesip_sal/sal_impl.c
+++ b/coreapi/bellesip_sal/sal_impl.c
@@ -323,9 +323,8 @@ static void process_response_event(void *user_ctx, const belle_sip_response_even
 			belle_sip_message("Op is terminated, nothing to do with this [%i]",response_code);
 			return;
 		}
-		if (!op->base.remote_ua) {
-			sal_op_set_remote_ua(op,BELLE_SIP_MESSAGE(response));
-		}
+		/*do it all the time, since we can receive provisional responses from a different instance than the final one*/
+		sal_op_set_remote_ua(op,BELLE_SIP_MESSAGE(response));
 
 		if(remote_contact) {
 			__sal_op_set_remote_contact(op, belle_sip_header_get_unparsed_value(BELLE_SIP_HEADER(remote_contact)));
diff --git a/mediastreamer2 b/mediastreamer2
index 8009a7440..b0e768db7 160000
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 8009a7440d296621f2074642394effabe442b028
+Subproject commit b0e768db74b5944de8ec606e2d70744dc124cb70
diff --git a/oRTP b/oRTP
index 43a9185fe..9d03c3aa1 160000
--- a/oRTP
+++ b/oRTP
@@ -1 +1 @@
-Subproject commit 43a9185fe6baab7a009f730f123f1de07555f5fe
+Subproject commit 9d03c3aa1643f1cfae32de4abf04dc84ff3ad175