Dialogflow phone gateway to webhook and back

[Ali Mojiz]

Hey, 

After intent detection by dialogflow through phone gateway, I want to route it to a webhook and send the relevant response through phone gateway to the user i.e. IVR. I know it works easily with text input where you call the detectintent api in your webhook, get the relevant intent and respond back to the user but does it work in case of voice the same way?