change buffer again

src/dcall.c

@@ -231,7 +231,7 @@ int main(int argc, char *argv[]) {
     .audio_tap = "pulsesrc",
     .grtppktlost = 0,
     .droplat = TRUE,
-    .buffering_mode = "none"
+    .buffering_mode = "slave"
   };
   int opt = 0;