diff -r 7510455a1902 -r bba8505129d5 libpurple/protocols/jabber/jingle/rtp.c
--- a/libpurple/protocols/jabber/jingle/rtp.c	Tue Feb 04 02:59:47 2020 +0000
+++ b/libpurple/protocols/jabber/jingle/rtp.c	Tue Feb 04 03:05:18 2020 +0000
@@ -87,9 +87,12 @@
 
 	for (; candidates; candidates = g_list_next(candidates)) {
 		PurpleMediaCandidate *candidate = candidates->data;
-		gchar *id = jabber_get_next_id(jingle_session_get_js(session));
-		jingle_transport_add_local_candidate(transport, id, generation, candidate);
-		g_free(id);
+		if (purple_media_candidate_get_protocol(candidate) ==
+				PURPLE_MEDIA_NETWORK_PROTOCOL_UDP) {
+			gchar *id = jabber_get_next_id(jingle_session_get_js(session));
+			jingle_transport_add_local_candidate(transport, id, generation, candidate);
+			g_free(id);
+		}
 	}
 
 	return transport;
@@ -217,8 +220,15 @@
 				session);
 
 		g_object_unref(session);
-	} else if (type == PURPLE_MEDIA_INFO_ACCEPT &&
+	/* The same signal is emited *four* times in case of acceptance
+	 * by purple_media_stream_info() (stream acceptance, session
+	 * acceptance, participant acceptance, and conference acceptance).
+	 * We only react to the first one, where sid and name are given
+	 * non-null values.
+	 */
+	} else if (type == PURPLE_MEDIA_INFO_ACCEPT && sid && name &&
 			jingle_session_is_initiator(session) == FALSE) {
+
 		jingle_rtp_ready(session);
 	}
 }