DUNDi trunks outside of FreePBX

I was looking to move our DUNDi configuration into FreePBX, previously we had been using a couple of lines in extensions_custom.conf to create a context. I got things working fine to make calls from FreePBX, but when I sent calls out through A2Billing, it was getting errors trying to dial out.

Is anyone using DUNDi trunks in FreePBX and interacting with them from anywhere else? I was thinking about filing a feature request to create a context but thought I’d see if anyone else had any luck.