The Leading Conversational AI Voice Agent

Deploy fully autonomous, production-grade AI voice agents capable of synchronous speech processing, low- -latency inference, and dynamic response generation across telephony pipelines.

Trusted by 1000+ startups & enterprises

Advanced AI Agent Capabilities

Here's what sets our agents apart

Dynamic Knowledge Base Synchronization

Seamlessly auto-sync with structured and unstructured data sources to keep your AI agents up-to-date with the latest information using real-time indexing and retrieval mechanisms.

Intelligent Call Transfer Protocol

Enable context-aware call escalation through intelligent warm transfer logic, preserving session history and metadata for a frictionless handoff to human agents or external endpoints.

Voice-Based Scheduling

Enable your AI agents to communicate in multiple languages, ensuring customer support in their preferred language.

Custom Language Models

AI agents tailor voice interactions by training on domain-specific vocabulary and accents, improving comprehension and accuracy in complex conversations.

Human transfer

Empower your AI with smart escalation triggers that transfer calls to live agents based on context, urgency, or user sentiment, ensuring a personalized experience.

Knowledge Integration

Connect your AI with enterprise systems to pull insights and data in real time, enabling accurate responses and context-rich support at every interaction.

Use cases

Power Your Business with
AI-Enhanced Voice Automation

Arabic

Spanish

German

Tamil

Automatic Speech Recognition

0:15/10:37

Call Recording

Build

Construct highly-configurable AI voice agents utilizing :

ASR (Automatic Speech Recognition) with real-time decoding

NLP-driven Intent Parsing and Contextual Slot Filling

IVR Tree Traversal Logic integrated with Knowledge Graphs

Stateful Dialogue Management for persistent session handling

Webhook-Driven Dynamic Flows with real-time data enrichment

Deploy

Scale deployments with full-stack telephony infrastructure:

Programmable SIP Interfaces for trunking and call origination

Verified CNAM Registration for branded caller identity

High Throughput Batch Execution Engine for outbound campaigns

Omnichannel Telephony API Endpoints (Twilio, Vonage, SIP)

AI Agent Routing Layer with multi-tenant call load balancing

Callupgrade.ai

Incoming call

Accept

Decline

PM

Message

Remind me

Callupgrade.ai

Calls In progress

Sarah K

On Call

Krish J

On Call

Transcription

Monitor

Ensure observability and QA through:

Post-Call Transcription Pipelines with sentiment tagging

Call Success Classifiers driven by ML models

Agent Behavior Replay with Time-Stamped Logs

Integration with APM & Logging Tools (Datadog, ELK stack)

Integrations

Seamless Integrations

Effortlessly connect with leading platforms and APIs to enhance automation, communication, and customer engagement.

Build Enterprise-grade Agents At scale

Empower your business with AI-driven agents designed for performance and reliability. Scale effortlessly while delivering natural, real-time interactions across the globe.

Fully Compliant Platform

Callupgrade.ai is HIPAA, and GDPR compliant, meeting all industry compliance standards.

Reliable and Stable Platform

With 99.99% average uptime and seamless fallback, Callupgrade.ai keeps your agents consistently production-ready and operating without disruption.

Voice AI API

With just 500ms latency, our API delivers natural, flowing, and emotionally aware voice interactions—ideal for real-time applications.

Effortless Scalability

Easily manage millions of calls with built-in support for high-volume concurrent calling—no extra setup needed.

Multilingual Support

Communicate globally with support for 40+ languages and the ability to dial phone numbers in any country.

Start building your AI agents today

Join the Future of AI Voice Technology

Use cases

One solution, unlimited use-cases

Here's what sets our agents apart

Inbound calls

Outbound calls

Support calls

AI Receptionist

Greet, route & qualify leads in real-time.

Customer Query Handler

Auto-answer common product or service questions.

Healthcare Clinic

Facilitate telemedicine, maintain patient records, and support billing inquiries.

Conversations Roleplay

Practice active listening and response.

Mock Interviews

Simulate real-time queries during calls.

Digital Employees

Answer routine inbound request automatically

Pricing

ApiFlow costs $0.10 per minute

Pay only for what you use. You can estimate your monthly bill using the calculator below.

ApiFlow cost estimator

Calls per month (100)

100

Average Call duration (12 Mins)

12

$120

Total cost per month

What Our Clients Say

What Our Clients Say

Real Stories. Real Impact. See how Callupgrade.ai is transforming customer interactions with intelligent automation.

Ryan Mitchell

Operations Lead

"We integrated CallUpgrade with our CRM effortlessly. The automation has boosted our team's efficiency, and the support team is fantastic!"

Ryan Mitchell

Operations Lead

"We integrated CallUpgrade with our CRM effortlessly. The automation has boosted our team's efficiency, and the support team is fantastic!"

Olivia Bennett

CTO at Innovate Solutions

"CallUpgrade has significantly reduced our call handling time while improving customer satisfaction. The AI responds just like a human!"

Olivia Bennett

CTO at Innovate Solutions

"CallUpgrade has significantly reduced our call handling time while improving customer satisfaction. The AI responds just like a human!"

Ava Thompson

CEO of TechServe

"Our inbound call volume was overwhelming. CallUpgrade now handles 70% of queries automatically, saving us time and resources!"

Ava Thompson

CEO of TechServe

"Our inbound call volume was overwhelming. CallUpgrade now handles 70% of queries automatically, saving us time and resources!"

Grace Walker

Head of Customer Support, VoxWorks

"CallUpgrade reduced our resolution time by 50%. The AI handles repetitive queries, letting our team focus on complex issues.”

Grace Walker

Head of Customer Support, VoxWorks

"CallUpgrade reduced our resolution time by 50%. The AI handles repetitive queries, letting our team focus on complex issues.”

Ethan Parker

CX Manager at PulseTech

“Our onboarding calls are now fully automated. The flow is smooth, and customer engagement has increased dramatically.”

Ethan Parker

CX Manager at PulseTech

“Our onboarding calls are now fully automated. The flow is smooth, and customer engagement has increased dramatically.”

Chloe Anderson

Tech Lead, CoreVoice

“Integrating CallUpgrade was seamless. The voice agents feel natural and have boosted user satisfaction in just weeks.”

Chloe Anderson

Tech Lead, CoreVoice

“Integrating CallUpgrade was seamless. The voice agents feel natural and have boosted user satisfaction in just weeks.”

Security & Compliance

HIPAA and GDPR Alignment

Real-Time DNC Compliance Filters

+ 1234567890

Incoming Call

PM

Spam Call Detected

Audit Logs and Access Controls via IAM integrations

Log

Add Sections or Complete Pages

Add breakpoints to your blank page, then drop sections to have them responsive out of the box.

Get Started

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Customer stories

Learn how business from different industries are using our platform to automate processes.

How businesses are using Callupgrade.ai

Retail

Healthcare

Realestate

AI Startups

"Integrating CallUpgrade.ai's AI voice API into our stores has been a game-changer. We've reduced our operational costs by 40% and significantly enhanced the shopping experience for our customers. "

Jack Jones

CTO at BigCompany

Enhancing Customer Experience and Reducing Costs with CallUpgrade.ai

A leading retail chain integrated ApiFlow's AI voice API to provide voice-activated assistance in their stores. This technology allowed customers to easily find products, check prices, and get personalized recommendations.

FAQs

Questions? We got answers

Empower your business with AI-driven agents designed for performance and reliability. Scale effortlessly while real-time interactions across the globe.

Can the AI handle complex customer queries?

Does CallUpgrade integrate with CRM systems?

Is customer data secure with CallUpgrade?

Do you offer a free trial?

What kind of insights does the platform provide?