[Freeswitch-users] Ringing don't exist

Hi, I need to make a call from my soft phone to another freeswitch ,when the call is established (i meant (INVITE ,OK , RINGING or Progress.dession .) and after the ring is done to the freeswitch i will listen for example a song ,for that i make an external gateway ,but the step "ringing or progress session " is not estableshed i need to call the extension 600 ​ thanks with regards amani