Ayra AI
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Retell

Retell Integration

Voice AI Platform

Ultra-low latency voice AI platform engineered for natural conversation flow. When milliseconds matter.

About Retell

Retell is a voice AI platform engineered specifically for ultra-low latency and natural conversation flow. While many platforms prioritize features, Retell obsesses over conversation quality—making interactions feel as natural and fluid as human-to-human dialogue.

Ideal for sales conversations where engagement matters, customer support where frustrated customers need quick resolution, and scenarios where conversation quality directly impacts outcomes.

Ultra-Low Latency

Response times typically under 1 second

Natural Interruptions

Handles customer interjections gracefully

Natural Voice Quality

Human-like speech with proper prosody

Retell Capabilities

Low Latency Architecture

Retell's infrastructure is optimized for minimal latency through distributed edge computing, optimized AI models, efficient voice synthesis, and intelligent pre-processing predicting likely responses.

Response Time

< 1 second

from customer stops speaking to agent begins

The Result

Conversations feel natural and engaging rather than stilted and robotic

Natural Interruption Handling

Real human conversations involve interruptions—people naturally interject, speak over each other briefly, and interrupt to clarify. Rigid turn-taking feels artificial.

Customer interrupts

Agent immediately stops and listens

Simultaneous speech

Customer speech prioritized

Brief interjections

Context-aware: continue or address

Voice Quality

High-quality voice synthesis that sounds natural and engaging. Appropriate prosody, emotional expression, correct pronunciation, and consistency throughout conversations.

Natural rhythmEmotional expressionComplex word handlingNumber pronunciationName handlingConsistent voice

Language Support

40+ languages covering major global markets. Multiple English variants (American, British, Australian, Canadian), Spanish, French, German, Mandarin, Japanese, Korean, Portuguese, Italian, Dutch, and more.

Auto-detection: Automatically identifies customer language and responds appropriately—enabling multilingual agents serving diverse customer bases.

Setting Up Retell Integration

1

Create a Retell Account

Visit the Retell website and sign up with your business email. Complete verification, provide billing information since Retell charges based on usage, and finish account setup.

2

Generate API Credentials

Access Retell's API settings from your dashboard. Generate a new API key specifically for Ayra integration. Name it clearly—"Ayra Integration."

Copy and store securely:

retell_sk_••••••••••••••••••••••••

Retell shows the complete key only once for security. Copy immediately if lost, you'll need to generate a new key.

3

Connect Retell to Ayra

  1. Navigate to Integrations in your Ayra dashboard
  2. Locate Retell under Voice AI Platforms
  3. Click Connect and enter your API key
  4. Ayra tests the connection automatically
4

Configure Settings

Configure defaults for Retell integration:

Default Voice

Select from Retell voice library

Preferred Language

Primary language for agents

Recording Options

Save conversations, retention period

Timeout Settings

Conversation timeout behavior

Fallback Behavior

Handling platform issues

Creating Retell-Powered Agents

Agent Setup

When creating voice agents, select Retell as the platform. Choose from Retell's voice library selecting options that match your brand and use case.

Tip: Retell agents benefit from concise, focused prompts. The platform's speed optimization works best with efficient conversation design.

Voice Selection

Retell's voice library emphasizes natural-sounding options. Listen to samples in realistic conversation contexts—not just single sentences.

Energetic

Sales applications

Calm

Support scenarios

Authoritative

Professional services

Friendly

Customer engagement

Conversation Design

Design conversations leveraging Retell's strengths:

  • Keep exchanges focused and purposeful
  • Use interruption handling for natural dialogue
  • Implement dynamic responses adapting to customer input
  • Avoid overly structured scripts—capitalize on natural dialogue

Advanced Retell Features

Real-Time Analytics

Live conversation analytics showing current call status, sentiment, detected intent, and engagement metrics. Enable live monitoring and intervention when needed.

Emotion Detection

Beyond basic sentiment—detects specific emotions (frustration, anger, confusion, satisfaction, excitement) for nuanced responses matching customer emotional state.

Custom Integrations

Webhooks and API integrations enabling custom functionality—real-time data lookup, business system actions, custom analytics logging.

Advanced Voice Tuning

Granular voice tuning parameters—speaking rate, pitch, stability, expressiveness. Create distinctive voice experiences perfectly matched to brand.

Testing & Optimization

Testing Tools

  • Conversation simulators for safe testing
  • Live test calls with recording and transcription
  • Structured test scenarios covering edge cases

Key Metrics

Average latencyConversation successCustomer satisfactionTechnical errorsEngagement scoresResolution rate

Optimization Strategies

  • • Review actual conversations identifying improvement opportunities
  • • Refine prompts based on customer feedback
  • • Adjust voice settings for optimal clarity and engagement
  • • Continuously update knowledge bases with new information

Pricing & Cost Management

Pricing Structure

  • • Per-minute rates for conversation time
  • • Volume discounts at higher tiers
  • • Feature-based pricing variations
  • • Review Retell's pricing docs for current rates

Cost Optimization

  • • Design efficient conversations
  • • Smart routing for complexity levels
  • • Avoid conversation loops
  • • Leverage volume discounts at higher tiers

Troubleshooting

Connection Issues

Verify API key accuracy, confirm account status is active, check Retell service health

Call Quality Problems

Check network connectivity, review Retell infrastructure status, analyze conversation logs

Integration Errors

Review webhook configurations, verify external service availability, check API rate limits

Choosing Between Vapi and Retell

Choose Vapi if...

  • • Maximum customization and control needed
  • • Building complex multi-turn conversations
  • • Extensive third-party integrations required
  • • Cost efficiency at very high volume critical

Choose Retell if...

  • • Ultra-low latency is paramount
  • • Natural conversation flow impacts outcomes
  • • Sales or customer-facing quality matters most
  • • Conversation quality over feature sets

Many businesses use both—Retell for customer-facing sales and support where quality matters most, Vapi for internal tools or high-volume applications where cost efficiency is prioritized. The flexibility to use both based on specific requirements is one of Ayra's key advantages.

You've Mastered Integrations!

You now understand how integrations extend Ayra's capabilities by connecting with external platforms, how voice AI platform integrations provide the foundation for all voice agent capabilities, and how to successfully implement and optimize both Vapi and Retell for your specific needs.

Integrations transform Ayra from a standalone tool into a comprehensive platform connecting your entire business ecosystem, eliminating manual work through automation, and enabling sophisticated workflows impossible without connected systems.

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