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Use case · AI voice agents

AI voice agents that sound human, respond in 200ms, and speak your customer’s language.

the voice AI layer behind some of the largest sales funnels in the world. Picks up in 8 seconds, runs 10,000+ concurrent calls, handles objections, and books meetings — in English, Spanish, Hindi, Arabic, Tamil, Telugu, Kannada, Malayalam, Marathi, Bengali, Gujarati and Punjabi.

180–250ms latency 10 Indian languages Inbound + outbound TRAI / sector regulators (IRDAI, FSA, NAIC, FCA) / RBI compliant
What is an AI voice agent?

Real conversations, not IVR trees. Autonomous voice agents that act like your best tele-caller.

An AI voice agent is an autonomous system that holds real-time voice conversations — understanding speech, inferring intent, handling objections and completing tasks like booking meetings — without a human on the line. Modern voice agents fuse large language models with low-latency speech-to-text and text-to-speech to sound human and respond within 200 milliseconds.

Swiftex voice agents are trained specifically on Indian sales dialogues, built on co-located GPU pods for low latency, and integrated with the telephony stack, CRM and WhatsApp — so a call that starts as voice can finish as a WhatsApp confirmation in the same session.

200ms
Typical speech-to-speech latency
8sec
Inbound call pickup, 24×7
74%
Listeners can’t tell AI from human
10k+
Concurrent calls supported
01 Sample call

Real conversation. Hindi–English code-switch. 38 seconds to booking.

INBOUND · MARUTI DEALER · 14:22 IST
Swiftex (T+0.4s)Hello, Maruti Kalyani Motors se Priya bol rahi hoon. Aapne Swift ke baare mein inquiry ki thi — kaise help kar sakti hoon? Caller (T+3.1s)Haan, VXI variant ka on-road price kya hoga Bangalore mein? Swiftex (T+3.3s)Swift VXI on-road in Bangalore $11,000 — with RTO aur insurance. Kya aap test drive schedule karna chahenge? Kal 5pm ya Saturday morning 11am available hai. Caller (T+8.7s)Saturday 11 fine hai. Swiftex (T+9.0s)Confirmed. Aapko WhatsApp pe address aur advisor ka number abhi bhej rahi hoon. Dhanyavaad!
Booked test drive in 38 seconds Native code-switch (no translation layer) WhatsApp handoff same session
02 Under the hood

Why Swiftex voice doesn’t feel like a voicebot.

Every conversational AI’s quality lives or dies on end-to-end latency. Anything over 400ms feels robotic. Here’s how we stay under 250ms.

Speech-to-speech budget (≈ 220ms)
STT · 50ms
LLM · 90ms
RAG · 50ms
TTS · 30ms
Streaming STT (Whisper-large + Indic fine-tune) Dialogue LLM (7B, on-prem) RAG · product & pricing lookup Neural TTS · native-speaker voices

Streaming inference

Tokens are streamed out of the LLM into TTS before generation completes — first audio byte in <100ms of end-of-user-speech.

Co-located GPU pods

Inference runs in the same availability zone as the telephony carrier. No cross-region round trips.

Turn-taking model

A dedicated VAD + endpoint model decides when to start, pause and back-channel — no awkward overlaps or silences.

Barge-in & interrupt

Caller can interrupt mid-sentence. TTS ducks, STT re-opens, model adapts — like talking to a human.

Objection library

Your top 40 real objections, trained from your own call history — not a generic dataset.

Warm handoff

When the caller asks for a human, Swiftex transfers the live call with a 15-second whispered context brief to the rep.

03 Languages

Built for how Indians actually talk.

Native accents, code-switching within a single call, and idioms that don’t translate. No “press 1 for Hindi” IVR.

English
EN-IN
Hindi
HI
Tamil
TA
Telugu
TE
Kannada
KN
Malayalam
ML
Marathi
MR
Bengali
BN
Gujarati
GU
Punjabi
PA
Hinglish
auto
Tanglish +
auto
04 Use modes

Inbound, outbound, follow-up, verification — all one stack.

Inbound support

Answer every inbound call in <8 seconds — 24×7, multilingual, first-attempt resolution.

  • Overflow from call-centre queues
  • After-hours coverage
  • Missed-call callback

Outbound campaigns

Run 10k concurrent dials with smart pacing, DND respect, and regulatory time windows.

  • Lead qualification
  • Meeting confirmation
  • Renewal & winback

Follow-up sequences

Touch 7 to close — automatic follow-up calls at optimal times per lead, without agent fatigue.

  • Multi-day cadence
  • Intent-based frequency
  • Stops on closed-won / opted-out

Verification & KYC

Confirm identity, address, document receipt on call with recording and consent.

  • sector regulators (IRDAI, FSA, NAIC, FCA) recorded consent
  • RBI KYC validation
  • Tamper-evident audit trail

Service callbacks

Post-visit NPS, service reminders, appointment reschedules — without blocking agent calendars.

  • NPS capture
  • Service due reminders
  • Feedback → CRM

Agent assist

Real-time whisper to human reps — objection prompts, compliance cues, next-best-action.

  • Live transcript
  • Objection prompts
  • Compliance flags
FAQ

AI voice, answered.

What is an AI voice agent? +

An autonomous system that holds real-time voice conversations — understanding speech, inferring intent, handling objections and completing tasks like booking meetings — without a human on the line. Modern voice agents fuse large language models with low-latency speech-to-text and text-to-speech to sound human and respond within 200 milliseconds.

What languages does Swiftex support? +

English, Hindi, Hinglish, Tamil, Telugu, Kannada, Malayalam, Marathi, Bengali, Gujarati and Punjabi. Code-switching within a single call (common in India) is handled natively — the agent detects language at every turn.

How low is the response latency? +

End-to-end speech-to-speech latency is typically 180–250ms — below the threshold at which humans start to perceive pauses as unnatural. Achieved with streaming STT, a 7B-parameter dialogue model and neural TTS running on co-located GPU pods.

Inbound and outbound both? +

Yes. Inbound pickup in <8 seconds, 24×7. Outbound at 10,000+ concurrent calls with smart pacing that respects DND, telecom rate limits and regulatory windows.

Does it sound robotic? +

No. Swiftex uses native-speaker neural voices with prosody, back-channels (“hmm”, “achha”), and natural turn-taking. In blind A/B tests, 74% of listeners could not reliably distinguish the agent from a human telecaller.

How does it handle objections and escalations? +

The agent runs a playbook of your top 40 objections (trained on your real calls) with branched responses. If the caller requests a human, says “manager” or crosses a confidence threshold, Swiftex warm-transfers to a live rep with a full transcript summary.

Is it compliant with DND and recording rules? +

Yes. Swiftex respects the DND / Do-Not-Call registries (TRAI, FCC, CRTC, EU PECR) and sector-specific rules (sector regulators (IRDAI, FSA, NAIC, FCA), RBI). Consent for recording is obtained at call start and stored with the transcript. SOC 2 and ISO 27001 controls apply.

What does it cost vs a tele-calling team? +

Typical outsourced tele-calling cost is $1.45–$3.60 per qualified lead. Swiftex voice agents land at $0.22–$0.48 per qualified lead at volume — telecom minutes are pass-through at cost, with no per-minute markup.

Hear it before you believe it.

15-minute call with a live Swiftex agent in your language, on your product catalog. Bring skepticism.