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Customizing Your AI Voice: Sound Professional, Friendly, or Both

Callbook Team2026-05-144 min read

Customizing Your AI Voice: Sound Professional, Friendly, or Both

Your AI receptionist is the voice of your business. It should sound like you want to be perceived—whether that's ultra-professional, warm and friendly, or somewhere in between.

Why Voice Matters

First Impressions

The first few seconds of a call shape customer perception:

  • Professional voice → Credible, established business
  • Friendly voice → Approachable, customer-focused
  • Wrong voice → Confusion, disconnect
  • Brand Consistency

    If your website is casual and fun, a stuffy AI voice feels wrong. If you're high-end luxury service, an overly casual voice undermines your positioning.

    Voice Options in Callbook

    Available Voices

    Professional Voices:

  • **Matthew:** Deep, authoritative male voice
  • **Joanna:** Clear, professional female voice
  • **Amy:** British accent, sophisticated tone
  • Friendly Voices:

  • **Salli:** Warm, approachable female voice
  • **Joey:** Casual, friendly male voice
  • **Kendra:** Energetic, upbeat female voice
  • Voice Characteristics

    | Voice | Gender | Tone | Best For |

    |-------|--------|------|----------|

    | Matthew | Male | Professional | Law, finance, high-end services |

    | Joanna | Female | Balanced | General business, healthcare |

    | Amy | Female | Sophisticated | Luxury, international |

    | Salli | Female | Warm | Service businesses, family-oriented |

    | Joey | Male | Casual | Young demographic, casual brands |

    | Kendra | Female | Energetic | Sales-focused, promotional |

    Customizing Your Greeting

    The Basic Greeting Formula

    [Thank/Welcome] + [Business Name] + [Your Name/This is...] + [Offer to Help]

    Professional:

    "Thank you for calling Smith & Associates Plumbing. How may I direct your call?"

    Friendly:

    "Hey, thanks for calling Bob's Plumbing! What can we help you with today?"

    Balanced:

    "Thanks for calling ABC Plumbing. How can I help you?"

    Including Key Information

    Business hours:

    "Thanks for calling ABC Plumbing. We're open today until 6 PM. How can I help you?"

    Special announcements:

    "Thanks for calling ABC Plumbing. We have same-day appointments available today. How can I help?"

    Emergency option:

    "Thanks for calling ABC Plumbing. If this is a plumbing emergency, say 'emergency.' Otherwise, how can I help you?"

    Adjusting Speaking Style

    Speed

  • Faster: Energetic, efficient feel
  • Slower: Thoughtful, careful feel
  • Pauses

  • Natural pauses improve comprehension
  • Longer pauses feel more patient
  • Emphasis

  • Emphasize business name
  • Highlight key offerings
  • Stress action words
  • Matching Voice to Business Type

    Plumbing/HVAC/Electrical

    Best voices: Salli, Joey, Joanna

    Tone: Friendly, competent, reassuring

    Why: Service businesses benefit from approachability; customers calling often have problems and want help, not formality.

    Law/Accounting/Consulting

    Best voices: Matthew, Amy, Joanna

    Tone: Professional, confident, trustworthy

    Why: These fields require credibility and gravitas.

    Medical/Dental

    Best voices: Joanna, Salli

    Tone: Calm, professional, warm

    Why: Healthcare needs reassurance without being overly casual.

    Restaurants/Retail

    Best voices: Salli, Kendra, Joey

    Tone: Welcoming, energetic

    Why: Hospitality is about warmth and welcome.

    Testing Your Voice

    Internal Review

  • Record sample greetings
  • Play for your team
  • Get feedback
  • A/B Testing

    With Callbook, you can:

  • Test different voices
  • Compare engagement metrics
  • Measure conversion differences
  • Customer Feedback

  • Ask long-term customers
  • Include in post-service surveys
  • Watch for comments
  • Seasonal and Special Greetings

    Holiday Greetings

    "Happy holidays from ABC Plumbing! Thanks for calling. How can we help you today?"

    Promotional Periods

    "Thanks for calling ABC Plumbing. Mention this call for 10% off tune-ups this week. How can we help?"

    After-Hours

    "Thanks for calling ABC Plumbing. We're currently closed but I can still help you schedule service or take a message."


    *Callbook lets you customize every aspect of your AI's voice and personality. [Get started free](/register) and create an AI that sounds like your brand.*

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