The voice of Indian business, built from the model up.
We build our own speech models, starting with Reso 1, real-time text-to-speech in English and Hindi, and the voice products that run on them: agentic calling, a cloud contact center, and conversation intelligence.
Now onboarding enterprise partners across India
Warm, conversational male
Your appointment is confirmed for tomorrow at eleven. I've sent the details to your phone.
Trusted by operations teams across India
One stack, top to bottom.
Most voice companies rent their models from someone else. We train our own, and build every layer above them. That is why Reso 1 sounds the way it does on a real Indian phone call, and why we can tune the whole pipeline instead of one slice of it.
Go deeper on Reso 1Products
What your customers talk to
Runtime
Real-time voice orchestration
Models
Our own speech models
Reso 1v1.0
Our first speech model. A streaming text-to-speech system that sounds human in English and Hindi, code-switches mid-sentence, and starts speaking before the sentence is finished.
- Streaming, not batch. Reso 1 emits audio in chunks as it reads, so the first phoneme lands in milliseconds. Built for live phone calls, not file rendering.
- Bilingual, with code-switching. Fluent English and Hindi in one voice, including the Hinglish that real Indian conversations are made of, switched mid-sentence without a seam.
- Expressive control. Pace, emphasis, and intonation respond to punctuation and markup, so a confirmation sounds reassuring and an alert sounds urgent.
Three products, one voice engine.
Relay, Switch, and Spectrum all run on Reso 1 and the same stack, the same numbers, the same dashboard. Switch modules from the rail on the left, no second tool, no second invoice.
One platform for every line of business.
Answer every call, the moment it rings.
Relay picks up instantly, handles FAQs, order status, and troubleshooting in the caller's language, and escalates only the edge cases to a human on Switch.
- Resolves common queries end to end
- Pulls order and account context live
- Warm-transfers to a human with full history
Figures are illustrative. Your results depend on call volume and flows.
A loop that gets smarter with every call.
One platform, one login. Switch modules instantly, your calls, contacts, and analytics never leave the same system.
Relay calls
AI agents place and answer calls, in your customer's language.
Switch escalates
Anything an agent can't close hands off to a human, live and in context.
Spectrum analyzes
Every call, AI and human, scored for sentiment, intent, and compliance.
Insights improve the AI
What Spectrum learns tunes Relay's prompts, routing, and voices.
Infrastructure built for how India calls.
Built for Indian languages
Indic speech recognition and voices built in-house, not bolted on. Relay handles code-switching, accents, and regional speech the way your customers actually talk.
Enterprise-grade & compliant
DLT and TRAI-ready, full call recording, and data residency in India. Built for teams with audits to pass.
One platform, not five tools
Calling, contact center, and analytics under one login. No brittle integrations stitched between vendors.
Scales from MSME to enterprise
Start with a single agent and one number. Grow to thousands of concurrent calls without re-platforming.
Plugs into the stack you already run.
Relay reads and writes to your CRM, helpdesk, and telephony in real time, so every call lands where your team already works. No rip and replace.
Browse all integrationsWe moved our entire collections line to Relay in three weeks. It calls in Hindi and Marathi better than most teams can hire for, and Spectrum tells us exactly why a call worked. We stopped staffing night shifts.
of collections calls now fully automated, with zero night-shift headcount.
Relay answers in the customer's language before the second ring. Our CSAT went up and our queue went down.
Spectrum scores every single call for compliance. Audits that took a week now take an afternoon.
Priced the way each product works.
One platform, one login, three billing models, because a voice agent, a seat, and an analyzed minute are not the same thing. Pick a product to see its plans.
Billed per minute of talk time
Pay for conversations, not idle seats. The rate falls as volume grows.
Launch
First agents in production.
- 9+ Indic-language voices
- Real-time, interruptible
- DLT / TRAI-ready
Growth
Scaling call volume across teams.
- Everything in Launch
- CRM, calendar & payment actions
- Custom voice tuning
Scale
High-throughput, always-on lines.
- Everything in Growth
- Unlimited concurrency
- India data residency
Enterprise
Custom volumeFor operations betting their phone lines on AI.
- Committed-volume rates
- Custom Indic voice models
- On-prem / India data residency
- Dedicated success + SLA
Compare Relay plans
| Feature | Launch | Growth | Scale |
|---|---|---|---|
| Calling | |||
| Per-minute rate | ₹6 | ₹4.5 | ₹3 |
| Concurrent calls | 25 | 200 | Unlimited |
| Inbound + outbound | |||
| Voice & language | |||
| Indic voice engine, 9+ languages | |||
| Custom voice tuning | – | ||
| Actions & integrations | |||
| Real-time function calling | |||
| CRM, calendar & payments | – | ||
| Compliance | |||
| Consent capture & recording | |||
| India data residency | – | – | |
| Support | |||
| Support | Priority | Dedicated + SLA | |
₹ figures are indicative for planning. Final pricing on request, with volume discounts available.
Questions, answered.
Still deciding? Talk to a human who has set this up for teams like yours.
Talk to usHindi, Marathi, Tamil, Telugu, Bengali, Kannada, Gujarati, Punjabi, and English out of the box, including code-switching within a single call. We add new languages and dialects on request.
Relay runs on in-house Indic speech models tuned for real accents and intonation, not generic text-to-speech. Most callers don't realise it's AI. The fastest way to judge is a live demo call.
Yes. We're built DLT and TRAI-ready, with consent capture, calling-window controls, and full call recording. Data handling is aligned with the DPDP Act.
In India by default. Enterprise plans add dedicated infrastructure and configurable data residency, plus on-prem options where required.
Anytime. Anything outside Relay's scope warm-transfers to a human on Switch with the full transcript and context, mid-call, so the customer never repeats themselves.
A monthly platform fee plus per-minute usage. The per-minute rate drops as volume grows, and Enterprise is custom. Usage is billed on top of the platform fee.
Most teams launch a first use case in days: connect a number, point Relay at your knowledge base and CRM, test on live calls, then scale.
Put Reso 1 to work on your calls.
Tell us about your use case. We will set up Reso 1 and the products on your numbers, with India data residency and voices tuned to your brand.