diff --git a/openbsc/doc/channel_release.txt b/openbsc/doc/channel_release.txt
index bd707b4..c9cdfeb 100644
--- a/openbsc/doc/channel_release.txt
+++ b/openbsc/doc/channel_release.txt
@@ -61,7 +61,8 @@
 	* Release all SAPI's > 0 as local end (The BTS should send a
 	  REL_CONF a message)
 	* Send SACH Deactivate on SAPI=0 if required.
-	* It should start T3109 but it does not.
+	* Start T3109 (stop it when the main signalling link is disconnected)
+	  or when the channel released. On timeout start the error handling.
 	* abis_rsl.c schedules the RSL_MT_RF_CHAN_REL once all SAPI's are
 	  released and after T3111 has timed out or there is an error.
 
diff --git a/openbsc/doc/examples/osmo-nitb/bs11/openbsc-1bts-2trx-hopping.cfg b/openbsc/doc/examples/osmo-nitb/bs11/openbsc-1bts-2trx-hopping.cfg
index 654d397..36065e2 100644
--- a/openbsc/doc/examples/osmo-nitb/bs11/openbsc-1bts-2trx-hopping.cfg
+++ b/openbsc/doc/examples/osmo-nitb/bs11/openbsc-1bts-2trx-hopping.cfg
@@ -30,7 +30,7 @@
  timer t3103 0
  timer t3105 0
  timer t3107 0
- timer t3109 0
+ timer t3109 4
  timer t3111 0
  timer t3113 60
  timer t3115 0
diff --git a/openbsc/doc/examples/osmo-nitb/hsl/openbsc.cfg b/openbsc/doc/examples/osmo-nitb/hsl/openbsc.cfg
index 3d95748..b0af855 100644
--- a/openbsc/doc/examples/osmo-nitb/hsl/openbsc.cfg
+++ b/openbsc/doc/examples/osmo-nitb/hsl/openbsc.cfg
@@ -31,7 +31,7 @@
  timer t3103 0
  timer t3105 0
  timer t3107 0
- timer t3109 0
+ timer t3109 4
  timer t3111 0
  timer t3113 60
  timer t3115 0
diff --git a/openbsc/doc/examples/osmo-nitb/nanobts/openbsc-multitrx.cfg b/openbsc/doc/examples/osmo-nitb/nanobts/openbsc-multitrx.cfg
index 7a187f8..bea0b7d 100644
--- a/openbsc/doc/examples/osmo-nitb/nanobts/openbsc-multitrx.cfg
+++ b/openbsc/doc/examples/osmo-nitb/nanobts/openbsc-multitrx.cfg
@@ -30,7 +30,7 @@
  timer t3103 0
  timer t3105 0
  timer t3107 0
- timer t3109 0
+ timer t3109 4
  timer t3111 0
  timer t3113 60
  timer t3115 0
diff --git a/openbsc/doc/examples/osmo-nitb/nanobts/openbsc.cfg b/openbsc/doc/examples/osmo-nitb/nanobts/openbsc.cfg
index 78e9787..7a44308 100644
--- a/openbsc/doc/examples/osmo-nitb/nanobts/openbsc.cfg
+++ b/openbsc/doc/examples/osmo-nitb/nanobts/openbsc.cfg
@@ -30,7 +30,7 @@
  timer t3103 0
  timer t3105 0
  timer t3107 0
- timer t3109 0
+ timer t3109 4
  timer t3111 0
  timer t3113 60
  timer t3115 0
diff --git a/openbsc/doc/examples/osmo-nitb/rbs2308/openbsc.cfg b/openbsc/doc/examples/osmo-nitb/rbs2308/openbsc.cfg
index 7135042..97cd9df 100644
--- a/openbsc/doc/examples/osmo-nitb/rbs2308/openbsc.cfg
+++ b/openbsc/doc/examples/osmo-nitb/rbs2308/openbsc.cfg
@@ -29,7 +29,7 @@
  timer t3103 0
  timer t3105 0
  timer t3107 0
- timer t3109 0
+ timer t3109 4
  timer t3111 0
  timer t3113 60
  timer t3115 0