diff --git a/tester/call_single_tester.c b/tester/call_single_tester.c
index 73e4667f0..970c1af24 100644
--- a/tester/call_single_tester.c
+++ b/tester/call_single_tester.c
@@ -3676,6 +3676,7 @@ void check_media_direction(LinphoneCoreManager* mgr, LinphoneCall *call, bctbx_l
 				linphone_call_cbs_set_next_video_frame_decoded(call_cbs, linphone_call_next_video_frame_decoded_cb);
 				linphone_call_add_callbacks(call, call_cbs);
 				linphone_call_cbs_unref(call_cbs);
+				linphone_call_request_notify_next_video_frame_decoded(call);
 				linphone_call_send_vfu_request(call);
 			}
 			switch (video_dir) {
diff --git a/tester/flexisip/flexisip.conf b/tester/flexisip/flexisip.conf
index 78f4cba57..682f3180b 100644
--- a/tester/flexisip/flexisip.conf
+++ b/tester/flexisip/flexisip.conf
@@ -264,7 +264,7 @@ max-contacts-by-aor=15
 
 # Maximum expire time for a REGISTER, in seconds.
 #  Default value: 86400
-max-expires=60
+max-expires=600
 
 # Minimum expire time for a REGISTER, in seconds.
 #  Default value: 60