Get Available Voices

List all available voice presets for AI phone agents.

Returns named TTS (text-to-speech) voice presets that can be used when configuring AI agents or making phone calls. Each voice defines how your AI agent sounds on the phone.

Returns {"voices": [...], "default_voice_id", "usage_hint"}: each voice has preset_name (e.g. "female-1"), voice_id (UUID), name and description. Pass either preset_name or voice_id as voice_id to create_agent, update_agent, make_outbound_call or set_account_voice.