Hello folks,
Today we’ll talk about VoiceMail Escape.
This is a new feature in Skype for Business Server 2015 detect the call is being routed to mobile voicemail.
This feature works when the customer enable call simultaneous, but, the administrator needs to configure it.
VoiceMail Escape detects when the mobile phone voicemail answered the call and automatically disconnect this call and forward to other endpoint. If the user does not answer, the call is routed to corporate voicemail.
Reference