diff --git a/gbproxy/osmo-gbproxy.cfg b/gbproxy/osmo-gbproxy.cfg
index b2ccb3bf7..dab4ef354 100644
--- a/gbproxy/osmo-gbproxy.cfg
+++ b/gbproxy/osmo-gbproxy.cfg
@@ -10,6 +10,7 @@ log stderr
  logging timestamp 1
  logging print file 1
  logging level lns debug
+ logging level lnssignal debug
  logging level lbssgp debug
  logging level gprs debug
 line vty
diff --git a/ns/osmo-ns.sns.cfg b/ns/osmo-ns.sns.cfg
index ad69f35c5..58d306e1c 100644
--- a/ns/osmo-ns.sns.cfg
+++ b/ns/osmo-ns.sns.cfg
@@ -31,6 +31,7 @@ log stderr
  logging level ljibuf debug
  logging level lrspro debug
  logging level lns debug
+ logging level lnssignal debug
  logging level lbssgp debug
 log gsmtap 127.0.0.1
  logging filter all 0
@@ -59,6 +60,7 @@ log gsmtap 127.0.0.1
  logging level ljibuf debug
  logging level lrspro debug
  logging level lns debug
+ logging level lnssignal debug
  logging level lbssgp debug
 !
 stats reporter statsd
diff --git a/ns/osmo-ns.udp.cfg b/ns/osmo-ns.udp.cfg
index 28237c5d2..95914274a 100644
--- a/ns/osmo-ns.udp.cfg
+++ b/ns/osmo-ns.udp.cfg
@@ -31,6 +31,7 @@ log stderr
  logging level ljibuf debug
  logging level lrspro debug
  logging level lns debug
+ logging level lnssignal debug
  logging level lbssgp debug
 log gsmtap 127.0.0.1
  logging filter all 0
@@ -59,6 +60,7 @@ log gsmtap 127.0.0.1
  logging level ljibuf debug
  logging level lrspro debug
  logging level lns debug
+ logging level lnssignal debug
  logging level lbssgp debug
 !
 stats reporter statsd
diff --git a/sgsn/osmo-sgsn.cfg b/sgsn/osmo-sgsn.cfg
index 811d3ff1c..dfbff6c32 100644
--- a/sgsn/osmo-sgsn.cfg
+++ b/sgsn/osmo-sgsn.cfg
@@ -21,6 +21,7 @@ log stderr
  logging level ref notice
  logging level gprs debug
  logging level lns debug
+ logging level lnssignal debug
  logging level lbssgp info
  logging level llc debug
  logging level sndcp debug
diff --git a/sgsn/osmo-sgsn.sns.cfg b/sgsn/osmo-sgsn.sns.cfg
index 69f514783..a22e7374f 100644
--- a/sgsn/osmo-sgsn.sns.cfg
+++ b/sgsn/osmo-sgsn.sns.cfg
@@ -21,6 +21,7 @@ log stderr
  logging level ref notice
  logging level gprs debug
  logging level lns debug
+ logging level lnssignal debug
  logging level lbssgp info
  logging level llc debug
  logging level sndcp debug