Why my htc m9 stoped vibrating when answering an outgoing call?

[AC Question]

Sorry for the bag english.
After the last update my htc m9 stoped virating when i was making a call and the person answered.
How can i enable this option?
Thanks.

 

[B. Diddy]

Welcome to Android Central! Open your Phone app, tap Menu>Settings>Call Settings, and see if there's an option for Connection Notification.