don't always reset crypto when DTLS is in use

closes #1019

Change-Id: I4fc1b015f70994176118f523e4d38b311ac78acb

daemon/call.c

@@ -1000,7 +1000,7 @@ static void __fill_stream(struct packet_stream *ps, const struct endpoint *epp,
 
 	ps->endpoint = ep;
 
-	if (PS_ISSET(ps, FILLED)) {
+	if (PS_ISSET(ps, FILLED) && !MEDIA_ISSET(media, DTLS)) {
 		/* we reset crypto params whenever the endpoint changes */
 		// XXX fix WRT SSRC handling
 		crypto_reset(&ps->crypto);