I got the impression that the CobraNet end was fine and operational, but the head end was buggy. Once the audio hits the line out, the job is finished. He needs multiple audio feeds which can be overridden with alternate audio (?) at regular intervals (park tours are beginning at the visitors center), and an option to override with alternate audio, either pre-recorded (boat to the mainland leaves the dock at 1900 hours) or real-time (emergency everybody-run-for-your-life-the-T-Rex-is-loose), on all or a selectable number of channels simultaneously.
Sounds like a real programming job!
You nailed it. The live 'emergency' paging is actually done in cobranet so only pre-recorded messages are required to play on trigger.
Stellar rays prove fibbing never pays. Embezzlement is another matter.