DTMF
Send DTMF tones during active calls to automate interactions with IVR systems and other tone-based services.
DTMF (Dual-Tone Multi-Frequency) is the tone that's generated whenever a key is pressed in an active call. This resource allows you to send DTMF digits in an active call. The common use case for using this object is to automate sending of specific digits to a receiver in an outbound call.
Use Case Example: Automatically navigate IVR menus, enter access codes, or provide automated responses to phone systems without manual input.
API Endpoint
Base URI
https://api.vobiz.ai/api/v1/Account/{auth_id}/Call/{call_uuid}/DTMF/Key Features
All DTMF Digits
Send any DTMF digit including 0-9, *, and # characters for complete IVR navigation.
Leg Selection
Choose which call leg (caller or callee) receives the DTMF tones for precise control.
Real-Time Sending
Send DTMF digits instantly during active calls for immediate interaction.
Automation Ready
Perfect for automated call flows, IVR navigation, and programmatic call control.
Common Use Cases
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IVR Menu Navigation
Automatically navigate through IVR menus by sending the appropriate menu selections.
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Access Code Entry
Enter conference codes, PIN numbers, or access codes without manual input.
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Automated Survey Responses
Submit automated responses to phone surveys or feedback systems.
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Account Verification
Automatically enter account numbers or verification codes during calls.
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Call Control
Send control codes to phone systems that accept DTMF commands.