How to set a default voice for Text-To-Speech (TTS)

  • Published on Nov 18, 2025
  • 1 minute(s) read
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Allow you to choose which voice your customers will hear during text to speech playback. You can set a default voice per policy or use the Account Settings default.

REQUIRED Editions, Packages & Licenses

  • Available in: Salesforce Lightning Experience

  • Salesforce Permissions needed: NBVC Administrator PermissionSet

  • Natterbox Call Centre 1.57 and Natterbox Admin (AVS) 1.49 or higher

  • Difficulty: 1/5

Set a default voice in a Routing Policy

  1. In the App launcher, search for Routing Policies. Once on the page select the routing policy you would like to make changes to.

  2. At the beginning of the policy, there should be a ‘manage properties’ app called Set Default Voice. Click this. From here you can choose the default voice you wish to use for this routing policy.

  1. When using a speech component later in the policy, it gives you the option of choosing the Default Voice

NOTE: The text to speech must be in the correct language. The voice will not convert the language.

Update the default voice on Account Settings page

  1. Navigate to the Account Settings page

  2. Click ‘Edit’ and change the ‘Voice’
    Dropdown menu showing country and voice options for selection in a user interface.

    1. The picklist options can be found here.

  3. Click ‘Save’.