Changelog

Changed

Call language is now optional — auto-detected from the phone number

language on Make a call is no longer required. When omitted, Dial detects the language from the phone number’s country prefix — the destination number for outbound calls, the caller’s number for inbound calls — and the voice agent handles both that language and en-US. Pass an explicit language to pin the call to a single language, exactly as before.

The CLI’s dial call --language flag follows the same behavior: omit it to auto-detect.