diff --git a/modules/rhizo_base/templates/osmo-bsc-head.erb b/modules/rhizo_base/templates/osmo-bsc-head.erb
index 3be7508..67f4350 100644
--- a/modules/rhizo_base/templates/osmo-bsc-head.erb
+++ b/modules/rhizo_base/templates/osmo-bsc-head.erb
@@ -89,6 +89,7 @@ network
 <% if @mncc_codec == 'AMR' -%>
  dyn_ts_allow_tch_f 0
 <% end -%>
+ dyn_ts_allow_sdcch8 0
  timer net T3113 50
  meas-feed destination 127.0.0.1 8888
  neighbor-resolution bind 172.16.0.1 4248