Incoming DIDs from Asterisk to Lync 2013

Hi everyone.
My setup is like this: PRI–>Trixbox CE-(SIP trunk)->Lync 2013

The SIP trunk is working and I’m able to call Lync extensions from Trixbox and viceversa and I’m able to make DID calls to Trixbox, but I can’t figure out how to make a DID call get to Lync.

I’ve seen multiple guides that say to just create and inbound route and make its destination the SIP Trunk but I don’t have that option, I can only terminate inbound calls on Trixbox extensions.


P.S. I know this is a FreePBX forum and I’m asking about Trixbox, but they’re very similar so I was hoping it would be something quick and easy that’s common between both systems.