Multilingual support

There are two forms. Either one language is fixed per phone number or agent, or the assistant detects the caller’s language and switches during the call. The second form is more convenient but more error-prone: an English company name inside a German sentence must not trigger a change of language.

The number of supported languages says little about quality. What matters more is how well recognition and voice work on the phone in each language, including dialects, names and addresses. The knowledge also has to exist in that language or be translated reliably. For day-to-day operation it also counts in which language summaries arrive, so that the team can read them.