WebSocket media interception payload hitting 429 on concurrent stream limit validation

NICE CXone API & Integrations
1

Problem
Pushing interception payloads to the Pure Cloud Voice WebSocket endpoint fails hard when call leg volume spikes. The media server just chokes on the sampling matrix.

Code

ws.send_message("intercept.stream.start", json.dumps({"callLegId": "a8f3-4c21", "samplingMatrix": {"intervalMs": 100}, "transcriptionDirective": True}))

Error
{"error": "bandwidth_saturation_failure", "code": 429, "message": "Maximum concurrent stream limits exceeded."}

Question
It’s supposed to auto-trigger codec conversion on atomic frames, but the socket drops. QA callbacks never even fire before the connection dies. Socket just hangs there.