Make your agent speak more than one language
Let your AI phone agent speak and understand English, Spanish and other languages by turning on Multiselect in the language picker.
Your agent can speak and understand more than one language on the same call. Open the language picker in Voice Settings, switch to Multiselect, and tick each language you want, for example English and Spanish.
Watch the walkthrough
Section titled “Watch the walkthrough”Before you start
Section titled “Before you start”- Not every language works with every voice, and not every language can be combined with others. Unavailable languages are greyed out and say why.
- Single language mode is recommended for best accuracy. Use several languages only if your callers need them.
Add more languages
Section titled “Add more languages”-
Open Voice Settings.
Open AI Phone Agents, select your agent, scroll to Agent Settings, and stay on the Instructions tab.
-
Open the language picker.
Select the language box next to the voice. It shows Single language mode until you change it. The panel is titled Speech Language.
-
Switch to Multiselect.
Select Multiselect in the panel. The title changes to Speech Languages.
-
Choose your languages.
Search the list or scroll, then select each language. Select a selected language again to remove it. One language must always stay selected.
-
Save.
Select Save. Then call your agent and speak each language to check it.
Let callers know they can switch languages
Section titled “Let callers know they can switch languages”Your agent replies in whichever selected language the caller speaks, and follows along if they switch mid-call. To tell callers up front, set Welcome message to Custom message and add a short line in the second language, such as “También hablo español si lo prefieres.” See change the welcome message.
If the agent does not switch the way you want, add a line to your instructions such as “Always reply in the language the caller speaks.” See edit your agent’s instructions.
Go back to one language
Section titled “Go back to one language”Open the picker and select Single-select. If you had several languages, the first one is kept.
Troubleshooting
Section titled “Troubleshooting”A language is greyed out
Section titled “A language is greyed out”The picker explains why. Typical reasons are that the selected voice does not support it, or that it cannot be combined with the other selected languages. Pick a different voice or remove a language.
I see a warning about the legacy Multilingual setting
Section titled “I see a warning about the legacy Multilingual setting”Older agents may use a legacy multilingual setting. Pick specific languages and save to switch to the newer mode.