why can't single number reach work with system call handlers

[jgerdes@ucmo.edu]

So bit of a head scratcher. calling a phone with SNR directly it works, if you call the hunt group directly "internal number only" it works, calling a system call handler that routes to the hunt group from an internal line the SNR works, calling a system call handler that routes to the hunt group from an external line the SNR does not work. what could I be missing?

[Jonathan Schulenberg]

If you add a Translation Pattern to a DID temporarily so it routes directly to the Hunt Pilot, does that also fail? That would rule CUC out.

My first guess is that the incoming gateway/trunk lacks an Annunciator resource via the MRGL. The Hunt Pilot will need it either to play ringback (the call has been answered so it can’t just send a 180 Ringing and expect the far end to generate this locally) or to play the Native Call Queuing announcement, if configured.

[jgerdes@ucmo.edu]

I'm not following the logic, if the trunk didn't have an annunciator then single number reach "remote destination" would work to begin with correct?