Voice AI Monitoring & Guardrails
AI voice agents go off-script. Hallucinate. Violate compliance. Modulate keeps them in line — in real time.
TIME 100 Company
ISO 27001 Certified
#1 for Conversation Understanding
100M+ Users Protected

Benchmark Results
Modulate's voice AI model Velma outperforms every published model for conversation understanding — combining audio, semantics, and prosody in a single real-time analysis.
The Problem
Black-box AI models are trained to answer the customer no matter what — guardrails aren't built in. Voice AI agents hallucinate mid-call, go off-brand under stress, mishandle vulnerable users, and create compliance violations that no one sees until it's too late.
of enterprises deploying voice AI report unexpected off-script behavior within the first 90 days
higher compliance risk when AI voice agents operate without real-time monitoring
Velma flags a guardrail violation in real time — before the conversation ends
of calls monitored — live and recorded — with full audit trail for compliance review
How Velma's Voice AI Monitoring Works
Velma listens to every AI voice agent call as it happens — flagging hallucinations, off-script turns, and prohibited topics within seconds.
Detect when agents are escalating tension, misreading emotional cues, or failing to handle vulnerable or distressed users appropriately.
Identify when calls need human intervention — before the customer hangs up frustrated or a compliance breach occurs.
Surface regulatory signals — PII exposure, prohibited claims, disclosure failures — in real time with a full audit trail.
Use Cases
Keep AI agents on-script and compliant across millions of support interactions.
Monitor consumer-facing voice AI for hallucinations, harmful outputs, and brand drift.
Safeguard users in sensitive, emotionally engaged conversations. Real-time guardrails for vulnerable populations.
Moderate AI character voices in multiplayer and social platforms. Enforce community standards in real time.
Healthcare, finance, and insurance deployments with compliance-grade monitoring and full audit trails.
Enterprise Ready
Compatible with
ISO 27001 certified — CCPA, GDPR, HIPAA, and EU AI Act compliant so your voice AI deployments meet enterprise standards from day one
Fits into your existing stack — monitor conversational AI voice agents without ripping and replacing; route signals into case management, risk engines, and coaching tools via APIs and webhooks
Your data stays yours — Modulate never trains on your conversations; you control how your voice AI audio is used
Transparent and auditable by design — every AI voice agent flag traces to a specific moment in the call, with built-in bias controls for high-risk compliance requirements
Battle-tested at scale — nearly a decade, hundreds of millions of sensitive voice AI conversations, zero breaches
Common Voice AI Monitoring & Guardrails Questions
Most customers are live within 2–4 weeks. Velma integrates via REST API with any telephony or CCaaS platform — no custom hardware or model training required.
Yes. Velma sits as an independent monitoring layer on top of any voice AI stack — including Amazon Lex, Google CCAI, Nuance, and custom LLM-based agents. It does not require access to the underlying model.
Velma analyzes streaming audio with sub-5-second latency. Guardrail violations, escalation signals, and compliance flags are surfaced while the call is still active — enabling live intervention, not just post-call review.
No. By default, Velma processes audio ephemerally — it is analyzed and discarded. Private cloud and on-prem deployment options are available for regulated industries requiring data residency controls.
Traditional QA tools review a sample of calls after the fact. Velma monitors 100% of calls in real time — catching violations as they happen and enabling live escalation, not retrospective scoring.
Velma’s monitoring infrastructure is SOC 2 Type II certified and ISO 27001 compliant. Customizable guardrail rules support HIPAA-aligned, FCA, FINRA, and TCPA frameworks. On-prem deployment available for highly regulated environments.
Book a live demo and see Modulate monitor a real AI voice agent call — guardrails, escalation detection, and compliance flagging in real time. No commitment required.
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