Zoomphone. How to change the language of the automatic voice?

Hi @Gaston_SZBLIND 

I believe that you are inquiring about Dial-In Numbers for Zoom Meetings (Zoom Phone for future reference is a Business Telephone System).

Nonetheless, it is possible to set your meeting invitations to show the dial-in telephone numbers for your country. In the case of Germany, Austria, and Switzerland the primary language recordings are in German with a secondary option in British English, and a tertiary option in French for Switzerland.

https://support.zoom.us/hc/en-us/articles/360019765151

You can set up the default Meeting Invitation phone numbers for your organization on the Zoom web portal under Admin> Account Management > Account Settings > Audio Conferencing (https://zoom.us/account/setting), or for your personal settings under Personal > Settings > Audio Conferencing (https://zoom.us/profile/setting). There you will see options edit the list of Toll Phone Numbers that appear in your meeting invitation, set a specific country where most of your participants will call-in from, and even edit the list of countries listed and the order in which they appear. See attached Screenshots.

https://support.zoom.us/hc/en-us/articles/115004454886-Specifying-global-dial-in-countries-regions

I hope that helps!