diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index 5d2042301..9b7a0aeab 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -3551,8 +3551,10 @@ static MSFilter *get_dtmf_gen(LinphoneCore *lc){
 		}
 	}
 	if (lc->ringstream==NULL){
+		float amp=0.1;
 		MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
 		lc->ringstream=ring_start(NULL,0,ringcard);
+		ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
 		lc->dmfs_playing_start_time=time(NULL);
 	}else{
 		if (lc->dmfs_playing_start_time!=0)
diff --git a/mediastreamer2 b/mediastreamer2
index f9c63a6e1..8b691f60d 160000
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit f9c63a6e1eac26014166716baa5b33f7c2d91f3f
+Subproject commit 8b691f60d9c1d46c1d37d214be869cfd94c76e73