diff --git a/modules/rhizo_base/templates/osmo-mgw.cfg.erb b/modules/rhizo_base/templates/osmo-mgw.cfg.erb
index 82d2277..b35f219 100644
--- a/modules/rhizo_base/templates/osmo-mgw.cfg.erb
+++ b/modules/rhizo_base/templates/osmo-mgw.cfg.erb
@@ -48,14 +48,14 @@ mgcp
  rtp ip-probing
  rtp keep-alive once
  rtcp-omit
- rtp-patch ssrc
- rtp-patch timestamp
+ no rtp-patch ssrc
+ no rtp-patch timestamp
  no rtp-patch rfc5993hr
  sdp audio-payload send-ptime
  sdp audio-payload send-name
  loop 0
  number endpoints <%= @mgw_num_ep %>
- allow-transcoding
+ no allow-transcoding
  osmux off
 <% if @bts[0]["model"] == "rbs2000" -%>
  trunk 0