Is there any way rtpengine can be configured to use same UDP port to receive and transmit RTP  packets?

The set up I'm trying is 

SIP_Client -->  Kamailio/rtpengine  -->  Freeswitch 

Internet            Internet         LAN          LAN 192.168.1.10

I tried rtpengine_offer  in  kamailio.cfg, 

but rtpengine seems to always use different ports to Tx/Rx the packets. 

(Causing Freeswitch to auto adjust its ports, which mutes the audio  channel one way).

rtpengine_offer("force symmetric media-address=192.168.1.10 replace-origin replace-session-connection ICE=remove");