[Serusers] need help with media proxy

Hi I am trying to get media proxy to work with sip express router. I am using a pstn configuration that seems to work fine when I am calling inside my network. Now when I connect on e UA to an outside network and try to call the inside network I get dead air. this is the error that I get 6(21198) error: mediaproxy/sendMediaproxyCommand(): can't connect to MediaProxy I have downloaded media proxy and set it up on ser as wekk as my proxy server. I have commented out the mediaproxy configs whenmedia server is runninmg on ser and on the media server box I have commented out the dispatched infrmation. I am using DSL so I have configiured them to listen on my public Ip address. I have followed the install instructions and still cant get it to work does any one have a working example of what the mediaproxy.ini file should look like. ANd shed some light on where I mat be going wrong. Thanks