Astral Mantra Labs builds production voice AI — inbound call triage, outbound appointment reminders, IVR replacement, sales qualification, and multilingual voice agents that work in English, Nepali, Hindi, and beyond. Nepal's AI studio, shipping voice in 6–10 weeks.
Voice AI is conversational AI that operates over a phone line, a voice channel, or a smart-speaker, instead of inside a chat window. Modern voice AI combines three layers in real time: speech-to-text (STT) to transcribe what the caller said, a large language model to understand and respond, and text-to-speech (TTS) to speak the reply back in a natural voice.
Voice AI in 2026 has crossed a real threshold. The latency, naturalness, and barge-in behaviour are now good enough that callers often don't realise they're speaking to an agent — until the agent does something a human couldn't, like pulling up their order history in 200 milliseconds.
Replace your IVR with an agent that listens to the caller's actual problem and routes them — or solves it directly.
Appointment confirmations, payment reminders, satisfaction surveys, delivery updates. Conversational, not robotic.
Inbound lead capture and qualification 24/7, with calendar booking and CRM handoff.
English, Nepali, Hindi, and most major languages — with the ability to switch mid-call if the caller does.
Order status, refund initiation, balance inquiries — fully automated for the routine 80%, escalated for the 20%.
Voice agents that run alongside field staff — confirming jobs, capturing site notes, generating reports.
Three things crossed acceptable thresholds at the same time in 2024–2025:
6 weeks for a focused single-flow voice agent (one call type, one language, one tool integration). 8 weeks for multi-flow agents with CRM and booking integrations and an evaluation harness. 10 weeks for multilingual agents, voice cloning, or call-centre-scale deployment with analytics dashboards.
Telephony minutes (Twilio, Plivo) and STT/TTS API costs are passed through transparently and typically run cents per minute at scale.
Direct answers to the questions buyers ask us most.
Voice AI is conversational AI that operates over a phone line or voice channel. It combines speech-to-text, an LLM reasoning core, and text-to-speech — all in real time — to handle inbound and outbound calls naturally.
Astral Mantra Labs typically delivers a production voice AI agent in 6–10 weeks. Single-flow agents land at 6 weeks; multilingual or call-centre-scale deployments take 10.
Single-flow voice agents start in the mid four to low five figures USD. Multi-flow agents with CRM integration and evaluation run low to mid five figures. Multilingual and call-centre deployments scale into mid-to-high five figures.
Yes. Astral Mantra Labs builds multilingual voice agents that handle English, Nepali, Hindi, and most major languages — including in-call language switching when the caller switches.
No. Modern TTS voices are good enough that most callers don't realise they're speaking to an agent in the first 30 seconds. We pick voices that match your brand or clone a real person's voice with permission.
Yes. The agent calls real APIs in real time — your CRM, your booking system, your knowledge base — to pull data, take actions, and book appointments without dropping the call.
The agent does a warm transfer to a human, with the full call summary, customer ID, and reason for transfer already attached. The human agent picks up where the AI left off.
Tell us the call type — inbound, outbound, IVR replacement — and the languages. We come back within 24 hours with a scope and a fixed-price discovery proposal.