diff --git a/linphonerc b/linphonerc
index 0a774e77a..3ee1f3d0b 100644
--- a/linphonerc
+++ b/linphonerc
@@ -29,6 +29,7 @@ playback_dev_id=AU: Audio Unit Receiver
 ringer_dev_id=AQ: Audio Queue Device
 capture_dev_id=AU: Audio Unit Receiver
 echocancellation=0
+dtmf_player_amp=0.007
 
 [misc]
 history_max_size=30
diff --git a/linphonerc-ipad b/linphonerc-ipad
index 075adf31c..19eb4dddf 100644
--- a/linphonerc-ipad
+++ b/linphonerc-ipad
@@ -29,6 +29,7 @@ playback_dev_id=AU: Audio Unit Receiver
 ringer_dev_id=AQ: Audio Queue Device
 capture_dev_id=AU: Audio Unit Receiver
 echocancellation=0
+dtmf_player_amp=0.007
 
 [misc]
 history_max_size=30
diff --git a/submodules/linphone b/submodules/linphone
index 0a12fa9ce..75040297c 160000
--- a/submodules/linphone
+++ b/submodules/linphone
@@ -1 +1 @@
-Subproject commit 0a12fa9ce7af5c795722ce1f7ebad9bc85314d3b
+Subproject commit 75040297c12e118cea0ec87d2bc3980c290f8e86