Talk to a live Callen AI agent in Hindi or English
AI voice platform · Built for India

Voice agents
that scale your
calls.

For

Build, launch, and scale no-code AI calling agents in English and 10 Indian languages, with sub-330ms latency and your CRM wired in.

Enter your number to hear a Callen agent.

Trusted by teams at India's fastest-growing companies

betterplaceCREDDCBEkartFlexipleFlipkartGrowthSchoolGrowwPharmEasyPharmaGrowthPolicyBazaarPractoProdigyFinanceShiprocketbetterplaceCREDDCBEkartFlexipleFlipkartGrowthSchoolGrowwPharmEasyPharmaGrowthPolicyBazaarPractoProdigyFinanceShiprocket

One platform for every voice agent you'll ever need.

From the first cold call to the final renewal: lead gen, qualification, sales, support, collections, surveys and hiring. Built for complex logic and real outcomes.

Build, test, and launch in minutes.

Write a prompt, pick a voice, connect a number. Callen handles telephony, languages and retries so you go from idea to live calls the same day.

Start building
AssistantsCreate assistant
Calls today
1,284
Avg latency
330ms
Connect rate
64%
Leads qualified
312
Lead Qualification
LiveOutbound
8,412
calls / 24h
71%
success
10,000+
concurrent calls
99.9%
uptime in peak seasons
11
languages, 10 of them Indian
<330ms
average latency
5.2M+
conversations handled

Use cases

Agents already on the phone for teams like yours.

Build your agent

Lead Generation

Identify potential clients and screen prospects. Automate outreach for better conversions.

3M+
Total calls done
5
Ongoing projects
Shiprocket · GrowthSchool Live call

Loan Collection

Identify overdue accounts and screen payment capabilities. Automate follow-ups for better recovery rates.

150K+
Collection calls completed
12
Active recovery campaigns
CRED · Aavas Financiers · Lorien Finance Live call

Last Mile Delivery

Identify delivery windows and screen recipient availability. Automate delivery coordination.

200K+
Delivery calls handled
8
Active logistics partnerships
Shiprocket · Freight Tiger Live call

Appointment Booking

Identify patient needs and screen appointment preferences. Automate scheduling for better conversions.

180K+
Booking calls processed
15
Active healthcare clients

Recruitment

Identify qualified candidates and screen job fit. Automate initial interviews for better placement rates.

120K+
Screening calls conducted
10
Active hiring campaigns
BetterPlace · Aasaanjobs · Flexiple Live call

Customer Support

Identify potential issues and help customers. Automate operations for better customer experience.

100K+
Total calls done
5
Ongoing projects
CRED · Practo Live call

Platform

A no-code platform to build and scale agents.

Callen shapes the voice agent around your business, so you can focus on what matters most.

Callen agents
Customer

Smart Auto Dialer

High-velocity dialing at 1000 calls/min with smart retry logic for max reach.

Let's talk

Web Calls and Chat

Web call integration on your website for an AI voice assistant for visitors.

200ms

Lowest Latency

English and 10 Indian languages with <330ms latency for natural, real-time conversations.

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SF
W
S
Sk
DB

Enhanced CRM Integration

The AI voice agent syncs calls, leads, and data with WhatsApp communication.

Human agent needed
Callen
Human
Customer

Warm Transfer to Human Agents

Smart call transfer to human agents maintaining context for superior experience.

Call analyticsLive
JanMarMayJulSepNov

Evals Studio and Analytics

Advanced analytics with call dispositions to optimize the voice AI tool.

Hear it for yourselfTalk to a Callen agent

Everything you need

Run your whole voice ops in one place.

Every tool your team needs to build, deploy, and scale AI voice agents, without writing a line of code.

Assistants

AI voice agents that work like your best ops team, only faster. 11 languages, with hand-off to humans when needed.

Analytics

Launch bulk campaigns and track engagement, drop-off, and conversions as they happen.

Knowledge Base

Upload FAQs, SOPs, and docs up to 25 MB. Update what your agent knows without touching flows.

Call History

Every transcript and decision path in one place, filterable by customer, agent, outcome, or time.

Numbers

Provision spam-free local, toll-free, or mobile numbers and assign them to agents or campaigns.

Automations

Send SMS or email follow-ups and push data to your CRM after every call, with no-code if/then logic.

Talk to one of our agents.

See how teams use Callen to automate conversations, lift response rates, and move customers to the next step faster.

Try the Logistics agent

Agent calls last up to 2 minutes

Integrations

Works with everything you already use.

Callen syncs calls, leads, and outcomes with your CRM, helpdesk, calendar, and telephony.

Talk to us about your stack
Salesforce
HubSpot
Freshworks
Google Drive
Calendly
Zendesk
Twilio
Shopify
Zoom
Plivo
ServiceNow
LeadSquared

Multilingual

Speaks the way your customers do.

Your agents listen and reply in 11 languages, and switch mid-call when the caller does, including natural Hinglish.

Hindiहिन्दी
English
Bengaliবাংলা
Teluguతెలుగు
Marathiमराठी
Tamilதமிழ்
Gujaratiગુજરાતી
Kannadaಕನ್ನಡ
Malayalamമലയാളം
Odiaଓଡ଼ିଆ
Punjabiਪੰਜਾਬੀ

FAQs

Questions, answered.

Still wondering how it works? Let's make it Callen-clear.

Voice AI assistants are software programs that use natural language processing (NLP) to understand and respond to human speech, helping users perform tasks like scheduling or answering queries. Enterprise-level AI voice assistant platforms like Callen AI provide the advanced infrastructure needed to handle complex, high-volume business interactions with human-like precision and low latency.

Ready to scale your business with an AI voice agent?

Build, launch, and scale no-code voice agents for every customer interaction, from first touch to follow-up, resolution, recovery, and retention.