Application shows Alert-popup to use Push to Talk framework

Hello All, I am getting following popup for our application,

Question,

1. What does it actually mean?

We are using following VoIP entitlements,

i) com.apple.developer.pushkit.unrestricted-voip

ii) com.apple.developer.pushkit.unrestricted-voip.ptt

We are getting this popup in iOS 16. Earlier we did not get this popup. SDK version we are using is 16.2

1. How long can we use these entitlements?
2. What will happen if we do not update to new Push to Talk framework?

Thanks.