ACME Packet destination trunk group routing

Hello,

I am trying to figure out how to get my ACME to route a call out to an IP based on destination trunk group.  Here is my example

                                                                                        acme strips off dtg

+------------+                +----------------+-----------------+           +-------------+

| Broadsoft  |  dtg=carrierA  |  ACME          |  ACME           |           | Carrier A   |

| 10.10.10.1 |  ------->      |  core (realm)  | carrier (realm) |  ------>  | 200.200.1.1 |

+------------+                | 192.168.200.1  | 123.1.2.3       |           +-------------+

                                                                +------------------------+---------------------------+

In my Broadsoft network server I have all my NPA/NXX rules built to match and set a destination trunk group.  The idea would be to signal to one ACME IP address on the core realm (192.168.200.1) have ACME decide what public IP carrier to send to based on the dtg=value.  Below is an example of what the SIP Invite looks like on the ACME.