Custom AI Voice Agents That Answer Calls, Qualify Leads, and Follow Up Automatically

Q: How much does a voice AI agent cost?

A custom voice AI agent has a one-time development fee of $1,000–$3,000 (approx. ₹85,000–₹2,50,000) and a monthly retainer of $300–$1,800 (approx. ₹25,000–₹1,50,000) for monitoring, tuning, and updates. Platform and telephony usage, typically a few cents per minute, is billed by the provider directly. Scope, not company size, decides where you land in each range.

Q: What does a voice AI agency do that a voice AI platform does not?

A platform gives you the tools to build a voice agent yourself. A voice AI agency builds it for you and keeps it working: we map your call flows, write and test the prompts against realistic callers, integrate your CRM, calendar, and phone system, run a monitored soft launch, and review call logs every week afterwards. You get a working agent on your calls rather than a toolkit and a learning curve.

Q: How long does it take to build a custom AI voice agent?

A single inbound flow in one language is usually live in about two weeks. Agents that combine inbound and outbound calling, several integrations, or multiple languages take three to five weeks, including testing and a monitored soft launch.

Q: Do you work with businesses outside India?

Yes. We are headquartered in Bangalore and work remotely with clients across North America, Europe, the Middle East, and Asia. We quote in USD, INR, or your local currency, and set up local phone numbers in the markets you call.

Q: Does the AI voice agent sound robotic?

No. We use current text-to-speech models that produce natural, fluid speech in the languages and accents your callers use, and we tune pacing and interruptions on real calls before launch. Many callers can't tell they're speaking to an AI unless told, and we recommend disclosing it anyway.

Q: Can it handle unscripted questions?

Yes. Unlike IVR systems with rigid menus, our voice AI uses language models to understand and respond to natural conversation, handling follow-up questions, objections, and unexpected inputs.

Q: What telephony infrastructure do you use?

We build on enterprise telephony providers that support local numbers in most countries, international calling, and high call volumes. We can connect to your existing phone number or SIP trunk, or set up new local numbers in the markets you call.

Q: How does it hand off to a human agent?

When the AI detects a high-intent signal or a specific trigger phrase, it can warm-transfer the call to a live agent in real time, passing a full summary of the conversation so far.

Q: Is outbound calling compliant with telemarketing regulations?

Yes. We build all outbound voice systems in compliance with applicable telemarketing regulations in your market, including FTC/FCC rules in the US, Ofcom and PECR in the UK, GDPR in the EU, and TRAI in India. This includes DND/DNC scrubbing and consent management where required.

We are a voice AI agency: we design, build, and run natural-sounding AI voice agents that answer every inbound call, run outbound follow-up, and sync everything to your CRM, without a single human dialling.

What Is a Voice AI Agent?

A voice AI agent is software that answers and places phone calls in natural conversation. It understands what the caller says, answers follow-up questions, books appointments, updates your CRM, and transfers the call to a person when it needs one. Unlike an IVR menu, there is no "press 1": the caller simply talks, and the agent responds the way a well-trained team member would.

SpaceBlanket.AI is a voice AI agency. We design, build, and run custom AI voice agents for businesses across North America, Europe, the Middle East, and Asia. Self-serve voice platforms give you the building blocks; what decides whether an agent works on real calls is everything around them: mapping your call flows, writing and testing the prompts against real caller behaviour, connecting your CRM and calendar, and tuning the agent every week once live traffic arrives. That is the part we do.

Most of our builds cover two jobs. Inbound, the agent answers every call instantly, qualifies the caller, resolves routine questions, and routes high-intent callers to your team. Outbound, it calls new leads within minutes, follows up on missed calls and abandoned sign-ups, and runs reminder and renewal calls, all synced to your CRM. For a real example, see how we built a voice AI callback agent for The School of Raya alongside their website and WhatsApp assistants.

A typical build goes from brief to live in two to five weeks. We walk through it step by step in from brief to a live voice AI agent in two weeks, and cover what we test before launch in how we test a voice AI agent before go-live.

Voice AI works best as part of a multi-channel system: AI chatbots for your website, WhatsApp automation for post-call follow-up, and AI email outreach for cold prospecting while the voice agent handles warm follow-up calls.

What You Get

Inbound Call Handling

AI answers every call instantly, qualifying the prospect, answering common questions, and routing high-intent leads to your team.

Outbound Follow-Up Sequences

Automated voice follow-ups for new leads, missed calls, post-enquiry nurturing, and appointment reminders.

Natural Voices, Languages & Accents

Choose from natural-sounding voices in the languages and accents your callers use, matched to your brand and the markets you serve.

Real-Time Transcription & Summaries

Every call is transcribed, summarised, and tagged automatically: synced to your CRM with key qualification data.

Live Transfer to Human

Smart triggers route high-priority calls to a live agent in real time, with full conversation context passed through.

Scalable Call Infrastructure

Handle hundreds of simultaneous calls without adding headcount, built on enterprise-grade telephony infrastructure.

What a Voice AI Agent Costs

Two numbers, not one: a one-time development fee to build an agent that works on your calls, and a monthly retainer to keep it working once real callers arrive. Platform and telephony usage is billed separately, at cost.

The scope of the conversation sets the price, not the size of your company. We quote in USD, INR, or whichever currency you operate in.

Development fee: $1,000–$3,000 (one-time · approx. ₹85,000–₹2,50,000)

Discovery, call-flow design, scripts, CRM and calendar integrations, testing, and a monitored soft launch. One inbound flow in English sits at the lower end, live in about two weeks. Inbound plus outbound triggers, several integrations, or extra languages move toward the upper end, three to five weeks.

Monthly retainer: $300–$1,800 (per month · approx. ₹25,000–₹1,50,000)

Call-log reviews, prompt and routing tuning, knowledge-base updates when your product or pricing changes, integration health checks, and a named support contact. Where you land depends on call volume and how many flows are in scope.

Platform & telephony usage: A few cents (per minute · paid to the provider directly)

The voice platform and phone carrier bill per minute, and we keep that as a pass-through cost rather than bundling it. You see exactly what each qualified conversation costs, and we have no incentive to keep your calls short.

Read the full voice AI agent pricing breakdown

Results

0%

Missed inbound calls

5×

More follow-up attempts per lead

< 3 wks

Typical time to deploy

60%

Reduction in manual dialling

Who It Is For

Real Estate

Every inbound enquiry call gets answered instantly, qualified on budget and project preference, and routed to the right salesperson, or booked directly into a site visit slot. Missed calls on high-traffic listing days become a thing of the past, and outbound follow-up sequences run automatically for every new portal lead.

Healthcare

AI voice agents reduce patient no-shows by running automated appointment reminder calls 24 and 48 hours before the booking. Inbound calls for appointment scheduling, clinic hours, and service queries are handled without putting patients on hold or routing through an overwhelmed receptionist.

Automotive

Handle inbound enquiries about test drives, service bookings, and vehicle availability automatically, freeing your showroom staff to focus on walk-in conversions. Outbound service reminder calls run at scale without a single manual dial, keeping your workshop utilisation consistently high.

Financial Services

Follow up on loan, insurance, and investment leads with personalised outbound calls at the right moment in the buying journey. All calls are transcribed and summarised automatically, keeping your compliance records complete and your sales team focused on closing, not calling.

Education

Follow up with prospective students who enquired but didn't enrol, and reach parents of enrolled students with fee reminders, event notifications, and term updates, all via automated voice calls that feel personal. Institutions run outreach campaigns at scale without adding admin headcount.

Hospitality

Handle reservation enquiries, room availability questions, and booking confirmations over the phone without routing every call through your front desk. Outbound follow-up calls for abandoned bookings and post-stay review requests run automatically, improving occupancy and online reputation.

Frequently Asked Questions

How much does a voice AI agent cost?