Operations/Traces

Distributed Trace Explorer

APM-style traces for Voice AI — spans, critical path, service map, flame graph, error/slow identification, correlation to recordings and deploys.

Critical path delay

2800ms

Error spans

Services

Automatic bottleneck diagnosis

Customer experienced a multi-second response delay culminating in failure. Approximately 1.6 seconds came from the CRM lookup/update retry storm, 700 milliseconds from LLM generation under retry pressure, and 500 milliseconds from TTS synthesis timeout.

CRM lookup / update: 1600ms (57%)LLM generation: 700ms (25%)TTS synthesis: 500ms (18%)

Waterfall view

Parent/child spans · duration · status · provider · retries · cost

voice.call

orchestrator

41.50 sok

sip.invite

telephony · Twilio

95 msok

media.stream

media

41.00 sok

asr.transcribe

asr · Deepgram

420 ms$0.002ok

llm.generate

llm · OpenAI · gpt-4.1

480 ms420 tok$0.008ok

tool.execute

api

210 msok

tool.execute

api

4.80 sr3$0.001timeout

llm.generate

llm · OpenAI · gpt-4.1

1.68 sr2890 tok$0.012error

tts.synthesize

tts · ElevenLabs

390 ms$0.004timeout

Span detail / I/O

voice.call

corr: call_8f2a91

sip.invite

media.stream

asr.transcribe

llm.generate

in: system+user greeting

out: Hi, thanks for calling…

tool.execute

in: lookup_order

out: order 88421

tool.execute

in: update_address

error: ETIMEDOUT crm.update_address

llm.generate

in: continue after tool failure

out: Sure, let me look that up…

error: timeout after tool-call retry storm

tts.synthesize

Correlations

Trace → recording: open call replay

Trace → logs: filter by correlation / span id in log store (demo)

Trace → deployment: Support Concierge 2026-08-03 09:10

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