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UCWA client drops an incoming call on SBAs from a federated user in Skype for Business Server 2015

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Symptoms

Consider the following scenario:
  • You are homed on a Survivable Branch Appliance or Server (SBAs) in Microsoft Skype for Business Server 2015.
  • The advanced privacy mode is enabled in SBAs.
  • You use a UCWA client such as the Skype for Business for Mac or mobile client.
  • A federated Skype for Business user starts a call to you.
In this scenario, you can accept the incoming call. However, the call is a one-way audio from the UCWA client to the federated user, and no audio comes back. After about 15 seconds, the call drops. In addition, the outgoing call isn't affected.

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Resolution

To fix this issue, install the May 2019 cumulative update 6.0.9319.548 for Skype for Business Server 2015, Front End Server and Edge Server.

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Workaround

You can start an outgoing call to the federated user or let this user invite you into a meeting. 

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Keywords: kb, kbfix, kbqfe, skype for business for mac or mobile, Survivable Branch Appliance or Server, UCWA client drops an incoming call, kbHotfixAuto, CI97610

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Article Info
Article ID : 4487826
Revision : 7
Created on : 5/3/2019
Published on : 5/3/2019
Exists online : False
Views : 207