Voice agents · বাংলা

Bangla AI calling agents for your business

A Bangla AI calling agent calls your customers, or answers when they call, in Bengali as people speak it in Kolkata and Dhaka, with English words where callers use them. It handles reminders, payment follow-ups, order confirmation, lead calls and support, and passes the call to your team when a person is needed.

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The Bengali demo agent calls back a parent who asked a made-up Kolkata coaching centre about admission. Play the parent and ask about batches, fees or timings. This is a live agent with sample data, not a recording. Calls end after 90 seconds; no phone number or sign-up needed.

What it does

Five jobs Bengali calling agents take on first.

Each one is a short, repeatable conversation with a clear outcome, which is where an agent saves a team the most time.

Reminders

Clinic, school-fee and EMI reminders in everyday Bengali: “কাল সকাল সাড়ে দশটায় আপনার appointment আছে।” Outbound calling campaigns

Payment collections

Polite follow-up on overdue bills that confirms who is speaking before the amount comes up, and records the date the customer gives. Calling windows and retries

Order confirmation

Order and COD confirmation for online shops in Kolkata or Dhaka, before the parcel leaves the warehouse. The AI telecaller

Lead calls

Call back admission, property or insurance enquiries the same hour they arrive, and transfer the ones ready to talk. Lead calls with CRM write-back

Customer support

Answer delivery, booking and account questions on your number in Bengali or English. AI IVR on your number

Start from a script

Reminder, EMI, COD and lead-qualification scripts to adapt: call script templates.

How Bengali callers talk

One language, two everyday standards.

West Bengal and Bangladesh share the Bengali script and most of the grammar, but everyday words and courtesies differ: জল and পানি for water, নমস্কার and আসসালামু আলাইকুম as greetings, চারটে and চারটা for four o'clock. Tell the agent which side of the border it is calling and give it greetings and sample lines from there.

Callers in both countries mix English freely: payment, delivery, confirm, OTP. Valmiki STT writes the mix down as it is said and detects Bengali without being told, and Pāṇini TTS reads Bengali in its own script with the English words in the same voice.

Sylheti, spoken in Bangladesh's Sylhet division, in Assam's Barak Valley and by much of the British Bangladeshi community, is close enough to Bengali that many speakers move between the two, and different enough that it is often treated as its own language. Pāṇini has a Sylheti voice, but Valmiki STT has no Sylheti setting, so a caller speaking full Sylheti is transcribed as Bengali at best. Test with real callers before relying on it.

Lines an agent might say

আপনার অর্ডারটা কাল ডেলিভারি হবে।
Your order will be delivered tomorrow.
সাড়ে চারটের সময়টা চলবে?
Will 4:30 work? (Kolkata)
বারো হাজার পাঁচশো টাকা
12,500 in rupees or in taka: Bengali calls both টাকা
দেড় লাখ
1.5 lakh

Numbers, dates and times

টাকা means rupees in Kolkata and taka in Dhaka.

Bengali speakers call money টাকা on both sides of the border. In Kolkata it means rupees and in Dhaka it means taka, so the agent seldom needs to name the currency, but it must know which one it is quoting. Both countries group large amounts in lakhs and crores (লাখ, কোটি). Bengali number words up to 99 are irregular, as in Hindi (নিরানব্বই is 99), and bills may print Bengali digits (১২৫০০), so write amounts out in words in the agent's instructions.

Times use সোয়া for a quarter past, সাড়ে for half past and পৌনে for a quarter to, so সাড়ে চারটে is 4:30. Business calls use Gregorian dates said as the date and the month (পনেরোই অক্টোবর); the Bengali calendar comes up around festivals such as পয়লা বৈশাখ. OTPs and phone numbers should be read digit by digit.

Do customers hang up on AI calls in India?

How it works

Three models handle every turn of the call.

The caller speaks, Valmiki STT writes it down, Vyas LLM decides the reply, and Pāṇini TTS says it.

01
Valmiki STT listens
Valmiki STT transcribes Bengali and English in the same call and detects the language without being told.
02
Vyas LLM decides
Vyas LLM reads the transcript with your instructions and picks the next step: answer, ask one question, use one of your tools, or transfer the call.
03
Pāṇini TTS speaks
Pāṇini TTS answers in a Bengali voice, reading Bengali script and English words alike. Clone a native speaker from a 10-second sample for a Kolkata or Dhaka accent.
04
Your tools and your team
Agents support MCP and tool calling during a call. The agent can transfer the call live to a person on your team. Every call has a recording and a transcript.

Price

$0.055 per minute, the same in Bengali as in English.

$0.055 per minute is the published price for agent calls. Telephony you connect from your own provider carries no Sonex minute charge.

	Per minute	1,000 minutes	10,000 minutes
US dollars (published price)	$0.055	$55.00	$550.00
Indian rupees	₹5.23	₹5,227	₹52,272
Bangladeshi taka	৳6.80	৳6,804.05	৳68,040.50

Rupee and taka figures use ₹95.04 and ৳123.71 per US dollar (open.er-api.com, 24 October 2026). They are for planning only. Full details on pricing; estimate a month of calls, with your telephony provider's rates, in the AI calling cost calculator. The AI calling agent price in India page answers the common questions in rupees.

Rules

What the calling rules ask of an AI agent.

An opening line that says so

হ্যালো, এটা [কোম্পানি]-র তরফ থেকে একটা AI assistant-এর কল, কলটা রেকর্ড হচ্ছে।

Hello, this is an AI assistant calling for [company], and the call is being recorded.

Calling in India

AI calling is legal in India, and the rules for business calls apply to an AI agent as they do to a person. TRAI now treats every call dialled by software, AI agents included, as an A2P call: from 27 November 2026 the business must declare these calls, and the numbers it calls from, to its telecom operator in advance. Promotional calls must come from 140 numbers, and service calls from banks, insurers and other regulated firms from the 1600 series. Read TRAI's rules on robocalls and commercial calls and TRAI's 140, 1600 and 1601 number series.

For overdue loans, the RBI's recovery directions apply from 1 January 2027: calls only between 08:00 and 19:00, every recovery call recorded and kept for six months, and the debt discussed only with the borrower or guarantor. They do not mention AI, so hold an AI agent to the same standard as a person. See RBI's recovery rules for calls. Most duties for call recordings under the DPDP Rules start on 13 May 2027 (DPDP and call recordings).

Calling into Bangladesh

For calls into Bangladesh we have no guide yet. Check the current rules for automated and promotional calls with your telecom operator and the regulator, BTRC, before you start a campaign.

Telling the caller in the first line that the call is with an AI agent and is recorded is the simple, safe default everywhere. More openings are in the AI disclosure and recording-notice scripts, and country rules in AI calling rules by country. These are summaries, not legal advice.

FAQ

Bangla AI calling agents, answered.

Yes. The demo near the top of this page is a live agent, not a recording. Press start, allow the microphone and talk to it in Bengali. Demo calls end after 90 seconds, and no phone number or sign-up is needed.

No. Bangla is what the language is called in Bengali, and Bengali is its English name. The difference that matters is between West Bengal and Bangladesh: greetings, some everyday words and the currency the agent quotes. Set those in the agent's instructions.

Not reliably. Valmiki STT has no Sylheti setting, so a caller speaking full Sylheti is transcribed as Bengali at best, and the result has not been measured. Callers who speak Bengali with a Sylheti accent are a smaller problem. Pāṇini does have a Sylheti voice for the agent's side.

Yes. Write the amounts and the currency in the agent's instructions. In Bengali the spoken word is টাকা for both rupees and taka, so the agent sounds right in either country as long as the figures are correct.

Whichever its instructions and sample lines are written in. Pāṇini reads what the agent writes, so a prompt written with Kolkata words gives Kolkata replies, and one with Dhaka words gives Dhaka replies. A cloned voice from a native speaker adds the accent.

Yes. Valmiki STT detects the language on each turn, so when a caller switches to English or Hindi the agent can follow. Say in the agent's instructions whether it should switch with the caller or stay in Bengali.

$0.055 per minute is the published price, the same for every language: about ₹5.23 and ৳6.80 at the 24 October 2026 exchange rate. 1,000 minutes of calls cost $55.00, about ₹5,227 and ৳6,804.05. Telephony you connect from your own provider carries no Sonex minute charge.

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