Call Behavior Settings

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Overview

Call behavior settings control the timing and flow of your agent’s conversations. They are found in the Call Settings section of your agent’s configuration.

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Response Delay

How long the agent waits after detecting the user has stopped speaking before generating a response. Range: 100–1500ms Default: 400ms Increment: 100ms A shorter delay feels more responsive; a longer delay gives users more time to finish their thoughts without being interrupted.

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Interruption Handling

Controls whether users can speak while the agent is talking, cutting off the agent’s response. Toggle: Interrupt (on/off) Default: On When enabled, the agent stops speaking as soon as the user starts talking. When disabled, the agent completes its full response before listening again.

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User Inactivity Timeout

How many seconds of silence trigger the agent to check if the user is still on the line. Range: 5–60 seconds Default: 15 seconds After the timeout, the agent proactively prompts the user. You can define what the agent says in your prompt.

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Max Call Duration

The maximum length a call can run before being automatically terminated. Range: 30 seconds – 1 hour Default: 300 seconds (5 minutes) Most calls should end naturally via Smart Call End. Max Call Duration is a safety net for runaway calls.

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Ambient Sound

Adds subtle ambient sound to the agent’s audio. Toggle: Ambient Sound (on/off) Default: Off

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Thinking Voice

Plays a thinking/processing sound between responses, making the agent feel more natural during pauses. Toggle: Thinking Voice (on/off) Default: Off

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Minimum Interruption Duration

The minimum duration of speech required to register as an interruption. Range: 0.2–1.5 seconds Default: 0.5 seconds Increasing this reduces false interruptions from background noise or brief sounds.

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VAD Activation Threshold

Voice activity detection sensitivity — how loud a sound needs to be before the system considers it speech. Range: 0.2–0.9 Default: 0.5 Higher values make the system less sensitive (ignores quieter sounds); lower values pick up more input.

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Wait for User to Speak First

Controls whether the agent speaks first or waits for the caller to initiate. Options:

• Never — Agent always speaks first
• Always — Agent always waits
• Outbound calls only — Agent waits only on outbound calls

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Next Steps