diff --git a/linphonerc b/linphonerc
index f0dff0146..ef80ec31e 100644
--- a/linphonerc
+++ b/linphonerc
@@ -2,7 +2,7 @@
 download_bw=380
 upload_bw=380
 firewall_policy=0
-mtu=0
+mtu=1300
 
 [sip]
 sip_random_port=1
diff --git a/linphonerc-ipad b/linphonerc-ipad
index 59853ab38..402f17b15 100644
--- a/linphonerc-ipad
+++ b/linphonerc-ipad
@@ -2,7 +2,7 @@
 download_bw=512
 upload_bw=512
 firewall_policy=0
-mtu=0
+mtu=1300
 
 [sip]
 sip_random_port=1