Go to Agents and click New Agent, or the edit icon on an existing card. Every setting lives on the agent's own page; click Save in the bar at the bottom of the editor. Changes apply from the next call, with no redeploy.
The main settings
- Engine and voice: pick an engine, then click the voice to choose one of that engine's voices. Speech recognition and the AI model come with the engine; there is nothing separate to pick. Standard minutes per call minute depend on the engine: Lite 0.85, Bharat 1, Expressive 1.1, HD and Premium 1.5, any cloned voice 1.5, Live and Duplex 2.
- Language: the language the agent opens in. It follows the caller if they switch, except on Vistrow Lite, where the call stays in the voice's one language. Engine, Voice, Language and Accent sit in the bar above the agent's tabs. See "Languages and accents" for the full list, including Auto-detect and 13 languages from outside India.
- Welcome message: separate lines for inbound and outbound calls. Use {{name}}-style variables to personalise them.
- System prompt: the agent's instructions. Leave it blank to use the built-in assistant prompt.
- Voice delivery, Adaptive tone, Reacts to the caller's mood (on voices that support it), Caller noise suppression and background ambience tune how the call sounds. Who speaks first is under Conversation.
- Interruption sensitivity (Conversation → Silence): Patient, Balanced (the default) or Quick sets how many words a caller needs to say to cut in. Vistrow Live and Duplex decide this themselves, so they have no setting.
- Timezone (Advanced → About): the date and time the agent goes by on calls. Use account timezone is the default.
Agent readiness
Each card shows a readiness score such as 5/6 with the next step to finish, like adding a knowledge base or assigning a number.