Pick the right voice + language

Voice + language choice has more impact on conversion than the prompt itself. Here's how to pick well.

The 12 system voices

Cualify ships with 12 voices covering the major Indian languages. All voices use Sarvam Bulbul:v2 under the hood — a multilingual model that handles each speaker's native script plus English code-mixing naturally.

Hindi (north India)

  • Aarav — male, warm. Good for collections, support callbacks.
  • Anaya — female, professional. Default pick for outbound sales.

Marathi (west India)

  • Kavya — female, conversational.
  • Rohit — male, energetic. Pairs well with consumer-app onboarding.

Tamil + Telugu (south India)

  • Divya — Tamil female, friendly.
  • Karthik — Tamil male, formal.
  • Lakshmi — Telugu female, warm.
  • Arjun — Telugu male, neutral.

Bengali (east India)

  • Ananya — female, gentle.

Kannada (south India)

  • Deepak — male, businesslike.

English (pan-India)

  • Olivia — female, neutral Indian-English accent.
  • Ethan — male, neutral. Default for English-only campaigns.

Picking the language

Counter-intuitive but well-tested at scale: Hinglish (हिन्दी + English auto-mix) outperforms pure Hindi in 70% of Indian urban SMB use cases. Why? Because that's how Indian SMBs actually speak — "Sir aapka EMI due hai, would you like to pay via UPI?" is more natural than the equivalent in either pure language.

Pick by audience region

  • Tier 1/2 urban (Delhi-NCR, Mumbai, Bangalore, Hyderabad) → Hinglish or Indian English
  • Tier 3+ towns, semi-urban → regional language (Hindi/Tamil/Telugu/etc.)
  • Pan-India professional B2B → Indian English (Olivia or Ethan)
  • Vernacular consumer (BFSI, EdTech tier-2/3) → matched regional language with a sub-30-word greeting (any longer feels scripted)

22 supported languages (full list)

English, Hindi, Tamil, Telugu, Marathi, Bengali, Gujarati, Kannada, Punjabi, Malayalam, Odia, Assamese, Urdu, Sindhi, Hinglish — and 7 more via the multilingual auto-detect model. Native scripts render correctly in transcripts.

What's next?