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Overview

An SBA is a device an application on the ASM that can switch Lync/Skype for Business or be used for survivability of Microsoft Teams VoIP calls from the network over to the PSTN, increasing the resiliency of branch office communications during network failures. Following Microsoft's end of support for Lync 2013 and Skype for Business 2015, you may wish to migrate your Lync 2013 SBA/Skype for Business 2015 SBA to a Direct Routing SBA or upgrade the existing Direct Routing SBA. This document describes how to upgrade a Direct Routing SBA on the ASM, with procedures defined in the workflow below. 

For more information on the SBA and the ASM, refer to: Working with the ASM: SBA , CCE and 3rd Party Applications.

Prerequisites

Before you begin, make sure you have completed the following:

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Direct Routing SBA (capable of SBC 1000 or SBC 2000)

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• Configure the Microsoft Teams Tenant for Direct Routing. For more information, refer to: https://learn.microsoft.com/en-us/microsoftteams/direct-routing-configure.
• Configure the Microsoft Teams Tenant for Direct Routing SBA. For more information, refer to: https://learn.microsoft.com/en-us/microsoftteams/direct-routing-plan.
• Obtain an Internet link to connect the Direct Routing SBA and the Microsoft Teams Tenant.

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• Confirm that you are working in a Ribbon SBC Edge 9.0.1 9 or higher device.

  Info
  title Note
  The SBC and SBC Communication service must be on Ribbon SBC Edge release 9.0.19 or higher.

  
  

• Confirm that your ASM features a licensed copy of Windows Server 2012 R2. For more information on how to confirm your Windows Server 2012 R2 license, refer to: Confirm Windows Server 2012 R2 2019 or 2012R2 License.

• Confirm that your ASM is loaded with the

  ASM image: directrouting-ws2012r2-901b560-2020-11-23

  Office 365 Direct Routing SBA image.

  Anchor
  ASM image ASM image

  Convert the Lync 2013/Skype for Business 2015 ASM to support the
  
  Example of the Windows License and Office 365 Direct Routing SBA .Image Type
  Image Added
  
  
  Note

  Note
  title Caution
  Do not apply an ASM_Teams_update.pkg until the SBA is fully deployed, as this results in an undesired outcome such as breaking the system.
  Info
  title
  You need to update the recovery partition with the ASM image mentioned above and reinitialize the ASM the convert the ASM successfully. For more information, refer to: Updating the ASM Recovery Partition Re-initializing the ASM

  
  

Workflow

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1. Log in to your SBC Edge (SBC 1000 or SBC 2000).
2. In the SBC Edge WebUI, select the Tasks tab.
3. From the left navigation pane, select Office 365^TM Direct Routing SBA > Setup. The setup pane opens on the right.
4. Select the ASM Config tab. The ASM Configuration pane opens.

5. In the ASM Configuration pane, complete the following fields based on your requirements:
   
   a. In the Network General Configuration section:
   • Remote Desktop Enabled 
   

   Info
   title Note
   Ribbon recommends you to disable Remote Desktop for security reasons.

   
   • Windows Firewall Enabled
   

   Info
   title Note
   Ribbon recommends you to enable Windows Firewall for security reasons.

   
   • Proxy Enabled
   

   Info
   This option allows you to enable or disable the use of Proxy Server on the ASMYou must set this option to disabled, because the Teams Direct Routing SBA does not support a Proxy Server.

   
   b. In the Network Adapter 1 Configuration section:
   • IP Addressing Mode 
   • DHCPv4 Enabled
   • Proxy Enabled
   
   c. In the IPv4 Information section:
   • IPv4 Address 
   • IPv4 Subnet Mask
   • Default Gateway
   
   d. In the DNS Addresses section:
   • Preferred DNS 
   • Alternate DNS
   
   e. In the Network Adapter 2 Configuration section:
   • IP Addressing Mode 
   • DHCPv4 Enabled
   

   
   For more information on the field descriptions, refer to: Configuring the ASM IP Settings.
   
   
6. Click Apply.

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1. Go back to Configuring Office 365 Direct Routing SBA, and modify the following fields:
   • Create Azure AD Application: Select Yes.
   • Azure Administrator Account Name
   • Azure Administrator Account Password
2. Click Apply.
3. Wait for the operation to complete and check the status of the SBA SG. For more information on checking the status of the SBA SG, refer to: Managing the Skype Teams SBA.
4. If the SG continues to be down, restart the Teams Server Service.

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