Direct Answer (TL;DR)
Yes. Brilo AI Topic Restriction lets you limit a Brilo AI voice agent to a defined set of subjects so it only answers requests within an approved scope. When Topic Restriction is enabled, the Brilo AI voice agent uses your configured allowed topics, confidence thresholds, and fallback rules to refuse, clarify, or route off-topic requests to a human or secondary workflow. This reduces regulatory and operational risk by preventing the agent from improvising outside approved areas. Topic Restriction is configured at the voice agent level and enforced at runtime.
Can I block the AI from answering certain subjects? — Yes. Brilo AI can be configured to deny or escalate any subject outside your allowed topics, with fallback routing and refusal messages.
Can I limit the agent to only account-related questions? — Yes. You can define an allowed scope that includes only account lookups and related intents, and force human handoff for anything else.
How does Brilo AI stop the agent from guessing about restricted topics? — Brilo AI uses confidence thresholds and decline rules to refuse to answer and to trigger a handoff when a query maps outside the allowed topics.
Why This Question Comes Up (problem context)
Enterprises ask about topic limits to manage compliance, reduce legal exposure, and keep conversations within approved processes. In healthcare, banking, and insurance, uncontrolled answers can expose private data or provide improper advice. Buyers need to know if Brilo AI voice agent capabilities include deterministic controls for scope, escalation, and audit trails so that phone automation behaves predictably under regulation and internal policy.
How It Works (High-Level)
Brilo AI Topic Restriction works by matching inbound caller intents to an approved topic list and enforcing routing rules when a match is absent or uncertain. At runtime the Brilo AI voice agent follows this sequence: identify intent, check allowed topics (scope), evaluate confidence, then either handle the request, ask a clarifying question, refuse, or route to a human. You supply the topic definitions and any grounding sources (for example, a knowledge base) used to validate answers.
In Brilo AI, Topic Restriction is a configuration that lists the subjects the voice agent may address.
In Brilo AI, allowed scope is the set of intents, phrases, and KB entries explicitly approved for the agent to serve.
See how Brilo AI handles long conversations and session limits in the product guide: Brilo AI: Can the AI handle long conversations?
Related terms used in this article: topic restriction, allowed scope, guardrails, confidence threshold, fallback routing, human handoff.
Guardrails & Boundaries
Brilo AI enforces several guardrails so Topic Restriction is reliable and auditable:
Define explicit allowed topics and mark all other subjects as out-of-scope. The Brilo AI voice agent will not answer those topics.
Use confidence thresholds for intent and transcription; below threshold, require clarification or initiate a handoff.
Require grounding sources (your knowledge base or CRM) for any account or fact-based answers; without grounding the Brilo AI voice agent must decline.
Configure automatic refusal messages and audit logs for every out-of-scope interaction to preserve traceability.
In Brilo AI, confidence threshold is the rule that determines the minimum model or ASR confidence needed before the agent answers without escalation.
For implementation patterns to avoid hallucinations and to opt for conservative fallbacks, see: Brilo AI guidance: preventing wrong or made-up answers
What Brilo AI should not do:
Attempt regulated or high-risk actions (for example, give medical diagnoses or execute fund transfers) unless you explicitly enable those flows with supervised approvals.
Fabricate facts when grounding sources are missing or confidence is low.
Applied Examples
Healthcare
A health plan call center configures Topic Restriction so the Brilo AI voice agent only answers eligibility, claims status, and appointment scheduling questions. If a caller asks medical advice or describes symptoms, the agent declines and routes to a clinical triage nurse.
Banking / Financial services
A bank restricts the Brilo AI voice agent to balance inquiries and recent transactions. Requests to initiate wire transfers or investment advice are marked out-of-scope and trigger an immediate human handoff or require multi-factor verification before continuing.
Insurance
An insurer limits the Brilo AI voice agent to policy status, billing questions, and claim status lookups. When a caller requests legal interpretation of coverage, the agent provides a refusal and opens a ticket for an agent with the appropriate credential.
Human Handoff & Escalation
Brilo AI supports multiple handoff patterns when Topic Restriction blocks or cannot safely handle a request:
Immediate transfer to a live agent for high-priority or regulated topics.
Open a support case or ticket and schedule an agent callback for non-urgent escalations.
Route to a verification workflow that collects minimal context (without attempting regulated actions) before passing to a human.
Handoff conditions are triggered by explicit keywords, repeated clarification failures, low confidence, or a mismatch with allowed topics. Configure routing priorities and escalation SLAs in your Brilo AI routing settings to ensure predictable behavior.
Setup Requirements
To configure Topic Restriction for a Brilo AI voice agent you must provide the allowed topics, routing, and grounding assets.
Define allowed topics: List the intents, phrases, and KB sections the agent may handle.
Provide grounding sources: Upload or point Brilo AI to your knowledge base entries and CRM fields for any fact-based responses.
Configure confidence thresholds: Set intent and ASR minimums that trigger clarification or handoff.
Create fallback messages: Write refusal and transfer prompts the agent will use for out-of-scope requests.
Map routing rules: Connect out-of-scope or low-confidence cases to your webhook endpoint or human team.
Test with sample calls: Run staged tests that include permitted and forbidden topics and review logs.
Enable auditing: Turn on call and decision logging for compliance and tuning.
Helpful setup references: Brilo AI: what happens if the AI doesn't understand the caller and Brilo AI: what happens when the AI is unsure
Business Outcomes
When Topic Restriction is used with clear guardrails, Brilo AI voice agent deployments typically deliver:
Safer automation by confining the agent to approved workflows and reducing compliance exposure.
Predictable caller experience with fewer incorrect or off-policy answers.
Reduced escalations for routine topics while ensuring humans handle complex or regulated requests.
Better auditability for regulated sectors because out-of-scope declines and handoffs are logged for review.
FAQs
Can I update the allowed topics after deployment?
Yes. You can update the allowed topics list and grounding sources without replacing the entire voice agent. Changes take effect after you redeploy the agent configuration and re-run any required tests.
How does Brilo AI detect out-of-scope questions?
Brilo AI matches the caller’s intent and content against your configured allowed scope and evaluates confidence scores. If there is no acceptable match or confidence is below your threshold, the agent will ask to clarify, refuse, or route to a human according to your rules.
Will the agent refuse instead of guessing?
Yes. With Topic Restriction plus conservative decline rules and confidence thresholds, the Brilo AI voice agent will refuse to provide an answer rather than guess, and will trigger fallback routing or a human handoff.
Can the agent partially handle a call that contains both allowed and disallowed topics?
Yes. Brilo AI can handle the allowed portions and then escalate when the caller transitions into a disallowed topic. You control whether the agent completes the permitted action first or routes immediately upon detecting the out-of-scope request.
Do I need a knowledge base to use Topic Restriction?
You do not strictly need a knowledge base to enforce topic limits, but grounding answers in a KB or CRM improves safety and reduces false positives. Grounding is recommended for account-specific or fact-based responses.
Next Step
If you’re ready to configure Topic Restriction, follow the setup checklist and testing guides in the deployment articles listed in the Setup Requirements section above.