### Answer

allow_dtmf_interruption

is a boolean parameter that controls whether DTMF (Dual-Tone Multi-Frequency) input will interrupt the agent even when

interruption_sensitivity

is set to 0 [(1) ]() [(2) ]() [(3) ]() . When set to

true

, DTMF input will interrupt the agent regardless of the interruption sensitivity setting . When set to

false

(the default) , DTMF input follows normal interruption rules . This setting can be overridden per conversation or subagent node . Note that

allow_dtmf_interruption

is distinct from

allow_user_dtmf

. The

allow_user_dtmf

parameter controls whether DTMF input is accepted and processed at all, while

allow_dtmf_interruption

specifically controls whether accepted DTMF can interrupt the agent .

​ To learn more, see the sources I considered: [[1] Create Agent Version](https://docs.retellai.com/api-references/create-agent-version) [[2] Update Voice Agent](https://docs.retellai.com/api-references/update-agent) [[3] Create Voice Agent](https://docs.retellai.com/api-references/create-agent) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer DTMF (Dual-Tone Multi-Frequency) is the technology used for telephone keypad input. When you press a number on your phone during a call, it generates a specific combination of two audio tones that the system can detect and interpret. In the context of Retell AI, DTMF allows callers to provide input by pressing keys on their phone keypad during voice conversations. This is commonly used for menu navigation, entering numbers like account IDs or PINs, or making selections during automated calls. Retell AI provides several parameters to control DTMF behavior, including

allow_user_dtmf

(which controls whether DTMF input is accepted and processed at all) and

allow_dtmf_interruption

(which controls whether DTMF can interrupt the agent when

interruption_sensitivity

is set to 0) [(1) ]() [(2) ]() [(3) ]() .

​ To learn more, see the sources I considered: [[1] Create Agent Version](https://docs.retellai.com/api-references/create-agent-version) [[2] Update Voice Agent](https://docs.retellai.com/api-references/update-agent) [[3] Create Voice Agent](https://docs.retellai.com/api-references/create-agent) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.