Deployed a VG4331 a couple of years ago w/ a PRI to the carrier which has been working fine since install, then this week I've gotten reports that outbound calls are failing. Inbound is working w/o any issues but outbound has no audio. Upon testing I found that the calls are connecting, just no audio (including ringback) on the calls in either direction. I did a quick debug which I can share for an outbound calls but I'm not seeing what the issue is in the debug.