We use the integrated IVR. When the issue occurs, we have observed the following conditions:
1. The IVR ports go into a "conn" state. Starting with the first IVR port.
2. Calls are still directed to the ports in "conn" state, which results in the caller getting RNA.
3. The last event on the port is a call being transferred to a Broadcast Hunt Group.
4. No alarms are generated. We become aware of the problem when a location reports that callers are getting RNA.
Stopping & Starting the "srp" service normally clears the issue.