What is the Session period for SINCH Pin Verificat

问题:

We are developing an android and iOS app which requires number verification. I am doing it using SINCH Verification SDK. For my app, number verification is being done from Server side using REST API call using SINCH REST API.

We are not sure what is the default time period (Session Time Period) for SINCH Pin verification. And how can i change it if i wish to change it?

Can anyone help me finding out default SINCH Pin Verificaiton Seesion time? Thanks in advance.