Question 1

What is Stellar?

Accepted Answer

Stellar is a no-code platform for building AI voice agents that answer your phone, qualify your leads, and book appointments. You sign up, pick your industry, connect your calendar or CRM, and your agent goes live in about ten minutes. Stellar ships with nine preloaded industry knowledge packs (HVAC, dental, real estate, salons, legal, and more) so the agent already speaks your industry's language on day one.

Question 2

How does Stellar work?

Accepted Answer

You pick a template (lead qualification, event confirmation, appointment booking, or customer support), choose a voice and personality, upload your knowledge base, and connect integrations like Google Calendar or HubSpot. From there, when a lead submits a form or a customer calls in, Stellar's AI agent runs the conversation, follows your configured logic, and takes the right action (booking, qualifying, escalating, or sending a follow-up email).

Question 3

What kinds of businesses use Stellar?

Accepted Answer

Stellar is built for small and medium businesses and the agencies that serve them. Customers include HVAC and plumbing contractors, dental and med-spa practices, real estate teams, salons, law firms, and roofing companies. Any business where the phone is a primary sales or service channel can use Stellar. Agencies can also white-label Stellar across their client base on the Agency plans.

Question 4

Do I need technical skills to use Stellar?

Accepted Answer

No. Stellar is fully no-code. Agents are built in a visual builder with templates, drag-and-drop knowledge base uploads, and one-click integrations. If you want API access or custom webhooks for advanced workflows, those are available starting on the Growth plan.

Question 5

What makes Stellar different from other AI voice platforms?

Accepted Answer

Three things stand out. First, Stellar ships nine preloaded industry knowledge packs, so an HVAC contractor or dental practice gets a competent agent on day one without writing any prompts. Second, Stellar is no-code and gets you live in under thirty minutes, where most other platforms require engineering work. Third, compliance (TCPA, FCC consent, AI disclosure, recording disclosure) is built into the platform, not patched on later as an upgrade.

Question 6

How is Stellar different from a traditional IVR phone tree?

Accepted Answer

An IVR is a menu of options the caller has to navigate by pressing keys ("press 1 for sales, press 2 for support"). Stellar replaces that with a real conversation. The caller just says what they need in their own words, and the agent handles routing, scheduling, qualification, or escalation directly. Most callers reach what they need in one exchange instead of working through three layers of menu.

Question 7

Do Stellar agents actually sound human?

Accepted Answer

Yes. Stellar uses the latest neural voice synthesis to produce natural-sounding conversations with realistic pacing, tone variation, and the ability to handle interruptions gracefully. Most callers genuinely do not realize they are speaking with AI.

Question 8

How natural does Stellar's voice sound?

Accepted Answer

Stellar's voice agents sound human enough that most callers don't realize they're talking to AI in the first 30 seconds of the call. The reason is technical: Stellar uses a native speech-to-speech model that handles understanding and voice generation in a single pass, instead of stitching together a separate transcription step, language step, and text-to-speech step. The result is sub-500ms response time and natural pacing on every call.

Question 9

Can Stellar handle interruptions and natural conversation?

Accepted Answer

Yes. Stellar agents handle interruptions, pauses, and back-and-forth conversation naturally. The speech-to-speech model processes audio directly, so it responds to tone and pacing the way a human would, not just words.

Question 10

Can I customize the voice and personality?

Accepted Answer

Yes. You choose from multiple natural-sounding voices and configure the agent's personality, tone, and speaking style. You can make the agent formal or casual, fast or measured, and match your brand's communication style.

Question 11

What is AI lead qualification?

Accepted Answer

AI lead qualification uses a voice agent to call new leads, ask qualifying questions (budget, timeline, decision authority), score their fit, and route qualified leads to your sales team. Stellar calls every new lead within 60 seconds of form submission, so you reach prospects while they are still engaged.

Question 12

What is AI event confirmation?

Accepted Answer

AI event confirmation uses voice agents to call attendees before an event, confirm their attendance, handle reschedules, and update your headcount in real time. Stellar supports multi-touch campaigns with up to 3 follow-up attempts, reducing no-shows by up to 38%.

Question 13

What is AI appointment booking?

Accepted Answer

AI appointment booking means an AI voice agent answers inbound calls 24/7, checks your calendar availability in real time via Google Calendar, and books appointments on the spot. No hold music, no missed calls, no phone tag.

Question 14

Can Stellar handle inbound and outbound calls?

Accepted Answer

Yes. Appointment booking agents handle inbound calls. Lead qualification and event confirmation agents make outbound calls. Each agent type is optimized for its call direction.

Question 15

What happens after a call ends?

Accepted Answer

After every call, Stellar runs an AI-powered post-call analysis. It generates a call summary, extracts key data points (qualification answers, booking details, sentiment), scores the lead, and runs any pipelines you have set up, such as tagging contacts, sending follow-up emails, or notifying your team on Slack.

Question 16

Can Stellar transfer a call to a human?

Accepted Answer

Yes. When a caller is angry, an issue is too complex for the knowledge base, or your configured rules say a human should take over, Stellar warm-transfers the call. The receiving rep hears a one-sentence whispered summary before the caller is bridged in, so the human picks up already in context, and the caller does not have to repeat their story.

Question 17

What happens when Stellar doesn't know the answer to a question?

Accepted Answer

If a caller asks something the knowledge base does not cover, Stellar does not invent an answer. The agent acknowledges the gap, captures the question, and either offers to email a human-prepared response or warm-transfers to a person depending on how you configured escalation. You also get a flag on the call so you can add the missing information to the knowledge base before it comes up again.

Question 18

Does Stellar support multiple languages?

Accepted Answer

Stellar's AI voice agents work best in English today. Additional languages are being evaluated based on customer demand and industry fit. If your business needs another language to launch, reach out through the contact page so it can be prioritized.

Question 19

How much does Stellar cost?

Accepted Answer

Every plan starts with a 14-day free trial (no credit card required). After that, paid plans are: Growth at $149/month with 200 minutes included, Pro at $399/month with 750 minutes included, and Scale at $899/month with 3,000 minutes included. Overage rates range from $0.11 to $0.18 per minute depending on plan. No hidden fees or contracts.

Question 20

How does billing work?

Accepted Answer

You pay a flat monthly base fee that includes a generous allocation of minutes. If you go over your included minutes, additional minutes are billed at your plan's overage rate. No surprises, no hidden fees.

Question 21

What counts as a minute?

Accepted Answer

Minutes are measured from when the AI agent connects to when the call ends. Ringing, hold time, and voicemail detection are not counted.

Question 22

Is there a free trial?

Accepted Answer

Yes. Every account gets 14 days of full Growth-plan access — 3 agents, 200 included minutes, every integration. No credit card required to start. After 14 days your account stays accessible (past calls, contacts, transcripts all preserved) but goes read-only until you upgrade.

Question 23

What happens when the trial ends?

Accepted Answer

Your account becomes read-only. You can still log in, view past calls and transcripts, manage settings, and disconnect integrations. Outbound calls and new agents pause until you upgrade. Nothing is deleted — when you subscribe, every agent, KB source, integration, and contact is exactly where you left it.

Question 24

Do I need a credit card to start?

Accepted Answer

No. The 14-day trial is full Growth-plan access with no card on file. You enter payment only when you decide to keep using Stellar past the trial.

Question 25

How long does it take to set up Stellar?

Accepted Answer

Most teams are live within 30 minutes. Choose a template, customize your agent's voice and personality, upload your knowledge base, connect your calendar, and you are ready to take calls.

Question 26

What integrations does Stellar support?

Accepted Answer

Stellar integrates with Google Calendar (real-time availability and booking), Google Sheets, HubSpot, GoHighLevel, Slack, Typeform, Jotform, Eventbrite, Zoom Webinars, WebinarJam, and custom webhooks. All plans include Google Calendar and webhook triggers. Pro and Scale add additional integrations.

Question 27

What is the knowledge base?

Accepted Answer

The knowledge base is where you upload documents, FAQs, and information your AI agent should know. When a caller asks a question, the agent searches your knowledge base and answers using your actual content. This ensures accurate, on-brand responses grounded in your real documentation.

Question 28

Can I use my existing phone number?

Accepted Answer

Yes. Stellar supports number porting for all plans. Your callers keep the same number while your AI agent takes over.

Question 29

Is Stellar TCPA compliant?

Accepted Answer

Yes. Stellar includes built-in TCPA compliance: FCC one-to-one consent capture tied to the specific form a lead submitted, do-not-call list management with real-time enforcement, calling-window restrictions by region (8 AM to 9 PM local by default), and AI identity disclosure on every outbound call. Strict mode refuses to dial any lead without a matching active consent record.

Question 30

Is Stellar GDPR compliant?

Accepted Answer

Yes. Stellar supports GDPR data retention policies, data export, and deletion requests. Call recordings and transcripts can be automatically purged based on configurable retention periods.

Question 31

How is my data protected?

Accepted Answer

All data is encrypted in transit and at rest. Every database query is filtered by account, so cross-tenant data access is architecturally impossible. OAuth tokens are encrypted with AES-256-GCM, and all connections use HTTPS. SOC 2 readiness is verified.

Question 32

Are calls recorded?

Accepted Answer

Call recordings are available on paid plans. Recordings are stored securely and can be reviewed in the calls dashboard. You can configure automatic retention periods to comply with your data policies.

Frequently asked questions

What is Stellar

Voice Quality & AI

Products & Use Cases

Pricing & Billing

Setup & Integrations

Compliance & Security

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