diff --git a/configs/misdn.conf.sample b/configs/misdn.conf.sample
index aafb6e93b3a80c5647031a0ab44700f4a33f99d1..c3e2b741de4010632b390bd078b36329bbe00ce7 100644
--- a/configs/misdn.conf.sample
+++ b/configs/misdn.conf.sample
@@ -227,8 +227,6 @@ te_choose_channel=no
 ; default: no
 ;
 pmp_l1_check=no
-pp_l2_check=no
-
 
 
 ;
@@ -370,14 +368,6 @@ screen=-1
 ;
 ;echocancel=no
 
-; this disables echocancellation when the call is bridged between 
-; mISDN channels
-;
-; default value: no
-;
-echocancelwhenbridged=no
-
-
 ; Set this to no to disable echotraining. You can enter a number > 10
 ; the value is a multiple of 0.125 ms. 
 ;