[Freeswitch-users] Freeswitch/freetdm<->Freeswitch PCMU always wins

PSTN -> Freeswitch/freetdm (sending) -> Freeswitch/sip (receiving) PCMU is always winning between these two Freeswitch 1.2.23 boxes regardless of order in the codec list, when a call comes on freetdm. If I remove PCMU from the receiving box global_codec_prefs and thus the sofia external profile "CODECS IN" it works as expected and picks the top agreed codec from the freetdm sending box and the receiving. Before I paste debug logs, is there something I should be looking for on the sending box in relation to freetdm?