During Call

During Call Trigger is a tool the model may call while talking (Runs when: Run actions during an active call). You name the function and write when to use it. The agent collects parameters from the caller, the graph runs, then (usually) AI Response to Caller speaks the result.

Every During Call graph adds latency. Keep the API under about a second. If you already know the fact from the caller ID, use On Call Start instead.

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What you configure

Function NameREQUIRED

Only lowercase letters, numbers and underscores (max 64). Example: get_user_info.

ConditionREQUIRED

When the AI should trigger this workflow. The model evaluates it during the call.

Enable Message Creation

When on, the AI speaks a message to the caller before the workflow executes.

Play wait music

Play keyboard typing music while the tool runs, then stop when the result is ready.

Parameters

+ Add Parameter - what to collect first (name, type, required, AI-generated when shown).

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First setup - one lookup the caller asks for

1. + Add Trigger - During Call Trigger. Fill Function Name and Condition.
2. + Add Parameter for anything the caller must say (for example a product code).
3. Connect To External Service using those parameters.
4. AI Response to Caller on the successful path.
5. Save & go live, attach, call, ask for the lookup. Time the pause.

Troubleshooting

The agent never calls the workflow

Tighten Condition and Function Name. Mention the parameter in the condition so the model asks for it. Confirm the Business Workflows toggle is on for this agent.

Callers notice a pause

Move anything that does not need their words to On Call Start. One During Call tool per job - do not stack three.

Next Steps

On Call Start - known-in-advance lookups.→Keyword Detected - a phrase, not a tool the model chooses.→On Key Pressed - digits, not speech.→