I am running Unity 5.0. On Unity server, I have 2 integrations; CCM and analog PIMG. My subscriber is associated to PIMG integration. I configured TRAP option for recording using my home phone (analog). I clicked "recording" on the media bar on the SA page, Unity sent the call out on CCM integration port instead of PIMG ports. Both PIMG and CCM both have TRAP ports enabled.
I was told this is by design. It does not make sense!