Advanced attributes

Level C ([C]) attributes are advanced system configuration fields that control deep platform behavior across conversation timing, voice backends, booking integrations, data injection, reporting, and channel settings. They are hidden from the standard Attributes page by default and only become visible when you toggle Show Hidden.

::: ⚠️ CAUTION

Most AI Employees work correctly without any changes to Level C attributes. These settings are intended for advanced configuration scenarios — incorrect values can break agent behavior. Only modify them if you understand the intended effect. :::

In this section

Article	Description
Conversation behavior	Session timeouts, follow-up timers, waiting mode, working hours status, initial thoughts, timezone reasoning, and other runtime conversation controls.
Channel settings	Tools configuration, sources map, chat message splitting, spam/voicemail detection, dialpad output, SMS provider, and time format.
Booking integration	Booking type, availability check configuration, schema templates, request headers, cancellation, and booking email.
Voice configuration	Voice integration service, voice mode, voice-to-voice provider, STT/TTS providers and models, AI Phone settings, and call timeouts.
Data injection	External data fetch toggle, refresh interval, token limits, and summary settings.
Reports and webhooks	Outbound webhook URL/schema/auth, session-ended report type and criteria, in-conversation reporting, and session log link.
Agent behavior settings	Business locations, scenario, calendar injection, HITL monitoring, products and services structured representation, test mode, and time format.

Accessing Level C attributes

Open your AI Employee in the Portal and go to Attributes.
Toggle Show Hidden to reveal Level C attributes alongside the standard ones.
Locate the attribute you want to configure — Level C attributes are marked with the [C] prefix in their titles.