Call forwarding and voice mail not working for LBR users who're signed out of all clients in Skype for Business Server 2019 and 2015

Applies to: Skype for Business Server 2019Skype for Business Server 2015

Symptoms


In a Microsoft Skype for Business Server 2019 or Skype for Business Server 2015 environment, consider the following scenarios after you configure User A for Location-Based Routing (LBR):

Scenario 1:
  • User A signs out of all clients.
  • User B makes an inbound PSTN call to User A.

Scenario 2:
  • User A sets up call forwarding to send all calls to voice mail.
  • User A then signs out of all clients.

Scenario 3:
  • User A sets up call forwarding to an external mobile phone number.
  • User A then signs out of all clients.
 
In all scenarios, an inbound call will hear a fast busy. The caller isn't routed to voice mail or not forwarded to the external number.

Resolution


To fix this issue, install one of the following updates: