AI voice + chat agents

The AI Voice Agent That Helps You Scale

Customer Support

Let customers speak to an AI agent, get instant answers, book appointments, and continue on WhatsApp when the conversation needs a follow-up.

Experience our demo

10,000+

Concurrent calls

99.9%

Response adherence

20+

Languages supported

FinEdge

MediFlow

UrbanKart

PolicyBay

ShipAxis

BetterPlace

Credora

DigiBank

RetailLoop

CareGrid

FinEdge

MediFlow

UrbanKart

PolicyBay

ShipAxis

BetterPlace

Credora

DigiBank

RetailLoop

CareGrid

Campaign builder

Build journeys that grow customer lifetime value.

Design the customer journey from first touch to follow-up. CleverStack uses channels, audience records, and AI decisions to keep every campaign moving toward a business outcome.

See campaign builder

Lifecycle campaign

Builder preview

AI optimizing

Current path

Start

Customer lifetime value

Customer enters from a list, segment, or reply. The journey keeps customer context, campaign outcome, and next action in one place.

Live call · Beth

00:12 · Customer FAQ agent

LIVE

Hi, I'd like to reschedule my appointment.

Sure — I can help. What date works?

Next Tuesday afternoon if possible.

Intent detected · Reschedule appointment

Assistants

AI voice agents that work like your best ops team—only faster.

Build and deploy custom AI voice assistants for business in minutes

Support 20+ languages with natural tone and context

Handle calls end-to-end or escalate to humans when needed

Create Assistant

FAQs

18 KB

SOPs

24 KB

Product notes

31 KB

Transcripts

412 calls

Grounded answer

Cited source

Confidence 0.94

CleverStack AI

Learned 4 sources

Knowledge Base

Train agents with the business context they need to sound smart.

Connect FAQs, SOPs, product notes, and customer records

Use customer fields and journey context for personalized replies

Update knowledge without rebuilding every conversation path

Add Knowledge

Customer timeline · Anika RaoToday

WhatsApp09:02

Hi! Anika here — order #4421 question

Voice09:04

Outbound callback · 2m 14s

SMS09:11

Tracking link sent · delivered

Agent09:18

✓ Closed

Resolved · escalated to human

History

Every conversation. Every context. All in one place.

View transcripts and AI agent interactions across channels

Track memory recall, decisions, handoffs, and outcomes

Filter by customer, agent, channel, journey, or time

View History

Global numbers

48 countries · local + toll-free

+0 active

+234

Active numbers

Countries

12ms

Avg routing

#Number

Buy, assign, and manage numbers that fit your workflow.

Instantly provision spam-free local, toll-free, or mobile numbers

Assign numbers to specific voice AI assistants or campaigns

Monitor call activity and usage per number

Buy Number

Appointment reminders

Running · 3 segments · WhatsApp

LIVE

Sent24K

Delivered22.8K

Replies8.4K

Qualified3.2K

Booked1.8K

7.5%

Conversion

35%

Reply rate

+22%

vs last run

Campaigns

Outbound call campaigns that scale with less manual work.

Launch reminder, offer, feedback, or appointment campaigns

Set targeting rules and follow-up branches

Track engagement, drop-off, and conversions instantly

Start Campaign

All-in-one platform

One loop from audience to engagement to insight.

CleverStack connects campaign journeys, live channels, app workflows, customer records, and AI analysis so every interaction improves the next one.

Capture

Capture WhatsApp replies, SMS events, telephony calls, campaign activity, tickets, and appointments into one customer record.

Understand

AI agents and automation logic read intent, urgency, customer history, and the journey stage before action is taken.

Act

Respond through chat flows, launch campaign follow-ups, route calls, update records, and move work into the right Flex screen.

Improve

Use analytics, campaign reports, call logs, message logs, and outcome rules to improve the next journey.

CleverStack

The engagement layer that connects journeys, channels, apps, agents, and customer history.

Capture

Capture WhatsApp replies, SMS events, telephony calls, campaign activity, tickets, and appointments into one customer record.

Understand

AI agents and automation logic read intent, urgency, customer history, and the journey stage before action is taken.

Act

Respond through chat flows, launch campaign follow-ups, route calls, update records, and move work into the right Flex screen.

Improve

Use analytics, campaign reports, call logs, message logs, and outcome rules to improve the next journey.

Use Your CleverStack AI Agent.

Select an industry and see what your agent would do.

Try ‘Logistics’ Agents

Automate delivery confirmations, reschedule attempts, and COD verification on telephony + WhatsApp.

Agent call is available for 2 minutes

AI voice + chat operations

Everything your AI agent needs to handle real customer conversations.

From outbound calls and web conversations to handoff, records, and analytics, CleverStack keeps every action connected.

AI Agent

Customer

smart retry

Auto Dialer

Run high-volume outbound calling with retry logic, queues, and agent routing.

Web Calls

Let visitors start a voice conversation from your website when intent is highest.

live route

Fast Routing

Route every conversation to the right queue, voice flow, or follow-up path.

Customer Record Sync

Keep calls, WhatsApp messages, tasks, appointments, and outcomes in one customer timeline.

human handoff

Human Handoff

Move complex conversations from AI to a team member with context preserved.

Call analytics

Calls 1,835
Connected 824

Conversation Analytics

Track calls, connected conversations, missed responses, campaign outcomes, and follow-ups.

CleverStack Teams. Real Wins.

Don’t take our word for it. Take theirs.

Outbound CollectionsEnglish + Hindi

CleverStack replaced three point tools for us. WhatsApp nudges, AI voice for promise-to-pay, and escalation to our team — all running on one timeline per customer. Collections velocity jumped in the first month and our ops team finally sees the whole journey instead of stitching dashboards.

41% lower collection cost

Rahul Menon, Head of Collections·Nova Finance

Collections

Nova Finance

Latest resources

Practical ideas for scaling customer conversations.

Explore resources

Blog

Build your AI-powered communication stack today

Give sales, support, and operations one intelligent system for every customer conversation.

Book Demo

Run campaigns, channels, low-code apps, and AI agents from one customer engagement platform.

The AI Voice Agent That Helps You Scale

Build journeys that grow customer lifetime value.

AI voice agents that work like your best ops team—only faster.

Train agents with the business context they need to sound smart.

Every conversation. Every context. All in one place.

Buy, assign, and manage numbers that fit your workflow.

Outbound call campaigns that scale with less manual work.

One loop from audience to engagement to insight.

Capture

Understand

Act

Improve

CleverStack

Capture

Understand

Act

Improve

Use Your CleverStack AI Agent.

Try ‘Logistics’ Agents

Everything your AI agent needs to handle real customer conversations.

Auto Dialer

Web Calls

Fast Routing

Customer Record Sync

Human Handoff

Conversation Analytics

CleverStack Teams. Real Wins.

Practical ideas for scaling customer conversations.

Why customer conversations need a decision layer

SMS, WhatsApp, and telephony engagement playbook

Low-code contact center app blueprint

AI agent workflow guide

Build your AI-powered communication stack today