diff --git a/openbsc/doc/examples/osmo-nitb/rbs2308/openbsc.cfg b/openbsc/doc/examples/osmo-nitb/rbs2308/openbsc.cfg
index 97cd9df..b1ebdd2 100644
--- a/openbsc/doc/examples/osmo-nitb/rbs2308/openbsc.cfg
+++ b/openbsc/doc/examples/osmo-nitb/rbs2308/openbsc.cfg
@@ -67,38 +67,38 @@
    max_power_red 12
    rsl e1 line 0 timeslot 1 sub-slot full
    rsl e1 tei 0
-    timeslot 0
-     phys_chan_config CCCH+SDCCH4
-     hopping enabled 0
-     e1 line 0 timeslot 1 sub-slot full
-    timeslot 1
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 2 sub-slot 1
-    timeslot 2
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 2 sub-slot 2
-    timeslot 3
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 2 sub-slot 3
-    timeslot 4
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 3 sub-slot 0
-    timeslot 5
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 3 sub-slot 1
-    timeslot 6
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 3 sub-slot 2
-    timeslot 7
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 3 sub-slot 3
+   timeslot 0
+    phys_chan_config CCCH+SDCCH4
+    hopping enabled 0
+    e1 line 0 timeslot 1 sub-slot full
+   timeslot 1
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 2 sub-slot 1
+   timeslot 2
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 2 sub-slot 2
+   timeslot 3
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 2 sub-slot 3
+   timeslot 4
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 3 sub-slot 0
+   timeslot 5
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 3 sub-slot 1
+   timeslot 6
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 3 sub-slot 2
+   timeslot 7
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 3 sub-slot 3
   trx 1
    rf_locked 0
    arfcn 57
@@ -106,38 +106,38 @@
    max_power_red 12
    rsl e1 line 0 timeslot 4 sub-slot full
    rsl e1 tei 1
-    timeslot 0
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 5 sub-slot 0
-    timeslot 1
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 5 sub-slot 1
-    timeslot 2
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 5 sub-slot 2
-    timeslot 3
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 5 sub-slot 3
-    timeslot 4
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 6 sub-slot 0
-    timeslot 5
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 6 sub-slot 1
-    timeslot 6
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 6 sub-slot 2
-    timeslot 7
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 6 sub-slot 3
+   timeslot 0
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 5 sub-slot 0
+   timeslot 1
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 5 sub-slot 1
+   timeslot 2
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 5 sub-slot 2
+   timeslot 3
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 5 sub-slot 3
+   timeslot 4
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 6 sub-slot 0
+   timeslot 5
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 6 sub-slot 1
+   timeslot 6
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 6 sub-slot 2
+   timeslot 7
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 6 sub-slot 3
   trx 2
    rf_locked 0
    arfcn 59
@@ -145,38 +145,38 @@
    max_power_red 12
    rsl e1 line 0 timeslot 7 sub-slot full
    rsl e1 tei 2
-    timeslot 0
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 8 sub-slot 0
-    timeslot 1
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 8 sub-slot 1
-    timeslot 2
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 8 sub-slot 2
-    timeslot 3
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 8 sub-slot 3
-    timeslot 4
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 9 sub-slot 0
-    timeslot 5
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 9 sub-slot 1
-    timeslot 6
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 9 sub-slot 2
-    timeslot 7
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 9 sub-slot 3
+   timeslot 0
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 8 sub-slot 0
+   timeslot 1
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 8 sub-slot 1
+   timeslot 2
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 8 sub-slot 2
+   timeslot 3
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 8 sub-slot 3
+   timeslot 4
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 9 sub-slot 0
+   timeslot 5
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 9 sub-slot 1
+   timeslot 6
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 9 sub-slot 2
+   timeslot 7
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 9 sub-slot 3
   trx 3
    rf_locked 0
    arfcn 61
@@ -184,38 +184,38 @@
    max_power_red 12
    rsl e1 line 0 timeslot 10 sub-slot full
    rsl e1 tei 3
-    timeslot 0
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 11 sub-slot 0
-    timeslot 1
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 11 sub-slot 1
-    timeslot 2
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 11 sub-slot 2
-    timeslot 3
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 11 sub-slot 3
-    timeslot 4
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 12 sub-slot 0
-    timeslot 5
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 12 sub-slot 1
-    timeslot 6
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 12 sub-slot 2
-    timeslot 7
-     phys_chan_config TCH/F
-     hopping enabled 0
-     e1 line 0 timeslot 12 sub-slot 3
+   timeslot 0
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 11 sub-slot 0
+   timeslot 1
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 11 sub-slot 1
+   timeslot 2
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 11 sub-slot 2
+   timeslot 3
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 11 sub-slot 3
+   timeslot 4
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 12 sub-slot 0
+   timeslot 5
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 12 sub-slot 1
+   timeslot 6
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 12 sub-slot 2
+   timeslot 7
+    phys_chan_config TCH/F
+    hopping enabled 0
+    e1 line 0 timeslot 12 sub-slot 3
 
 e1_input
  e1_line 0 driver dahdi