[DTMF] How to retrieve the value in PHP with ARI

Hi,
I need help to understand how to retrieve numbers from keys pressed (DTMF) after a sound that was reproduced on channel communication. Currently, I’m working in PHP using the ARI protocol. Is it possible to return the value pressed during the communication into a PHP variable using ARI?

Thx in advance

I don’t use ARI , but I know it is possible to do it using AMI because each time you press a key there is an AMI event

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