[Users] openser with nathelper/rtpproxy as SBC

Hi all, I'm trying to get openser to act as an SBC using the mediaproxy module and the rtpproxy (built from the cvs). openser is configured to run in a multihomed mode. I'm starting rtpproxy in debug mode: rtpproxy -f -l 10.110.1.174/10.111.5.15 The rtpproxy is binding to both IPs. When an INVITE is received on the 10.110 interface, I call force_rtp_proxy(). Regrdless of the "i" or "e" parameter that I pass to the force_rtp_proxy(), the rtpproxy is replying with the same IP. output from rtpproxy if force_rtp_proxy("i"): received command "UI 4a2fabe1-24c7fe03(a)10.110.50.4 10.110.48.7 10046 60e4ff4a-soma;1" new session 4a2fabe1-24c7fe03(a)10.110.50.4, tag 60e4ff4a-soma;1 requested, type strong new session on a port 35000 created, tag 60e4ff4a-soma;1 pre-filling caller's address with 10.110.48.7:10046 sending reply "35000 10.110.1.174 " output from rtpproxy if force_rtp_proxy("e"): received command "UE 44709fe7-423307f6(a)10.110.49.134 10.110.48.7 10012 1f713156-soma;1" new session 44709fe7-423307f6(a)10.110.49.134, tag 1f713156-soma;1 requested, type strong new session on a port 35002 created, tag 1f713156-soma;1 pre-filling caller's address with 10.110.48.7:10012 sending reply "35002 10.110.1.174 " The IP address sent out in the outgoing INVITE is 10.110.1.174 instead of 10.111.5.15. Is this the expected behaviour from the rtpproxy? Do I need to pass other params to the force_rtp_proxy() function? Regards, -ovi