Installing local TTS speech engines

Last Updated : Mar 11, 2025 |

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Local TTS uses RPM files, one for each language, installed on the same server as the voicemail service.

Local TTS is supported by PLDS licenses and subscription IP Office system. Languages are added by installing files on the same server as the Voicemail Pro service.
- PLDS licensed IP Office systems require TTS licenses.
- Subscription IP Office systems do not require any additional subscriptions.
Languages: Brazilian (Portuguese), Chinese (Mandarin), Danish, Dutch, English (UK), English (US), Finish, French, French (Canadian), German, Greek, Norwegian, Polish, Portuguese, Russian, Spanish, Spanish (Colombian) and Swedish.
- By default, IP Office on includes English. To install other languages, see the Deploying IP Office Server Edition manual.

Note:

If Google speech is also enabled on the system, use of Google speech for TTS overrides locally installed TTS.

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