There is a CUBE (12.4(25c)) with SIP trunk to telco on public IP. CUCM is connected to CUBE with SIP trunk to private IP on loopback interface. Though the default behavior for media to flow through in voice service voip and dial-peer configuration, in "show call history" I see the MediaSetting=flow-around. This behaviour haven't changed after I explicitly set voice class with media flow-through on terminating dial-peer.
Is there any restriction for media flow-through?