diff --git a/doc/examples/osmo-isdntap.cfg b/doc/examples/osmo-isdntap.cfg
index e69de29..4c5a1ef 100644
--- a/doc/examples/osmo-isdntap.cfg
+++ b/doc/examples/osmo-isdntap.cfg
@@ -0,0 +1,4 @@
+isdntap
+ output-path /tmp
+ line laforge dahdi trunkdev/laforge/0
+  local-role network