Page History

...

This article describes the steps necessary to configure an additional

Spacevars
0 product

 (SBC) as a fail-over gateway along with the necessary Lync topology configuration bits. For the purpose of this article, it is assumed that PBX – SBC (Primary) – Microsoft Lync 2010 configuration is already in place with MTLS/SRTP as the SIP Transport as shown in the diagram below.

 

Overview

This is a two-part process; in the first part of the process, we use the Lync 2010 Setup Wizard on two different SBCs to point each of them at the same Lync Pool. In the second part, we do the complementary action on the Lync side by specifying both of the SBCs as PSTN Gateways using the Lync 2010 Topology Builder.

...

Panel
borderStyle none
Caption 0 Figure 1 Lync 2010 Setup Image Modified

 

Primary SBC Configuration

...

Panel
borderStyle none
Caption 0 Figure 1 Lync Setup - Mediation Servers Image Modified

 

Pagebreak

Secondary SBC Configuration

...

Panel
borderStyle none
Caption 0 Figure 1 msLync - Mediation Servers Image Modified

 

Pagebreak

LYNC Topology Configuration

...

1. Use Remote Desktop to connect to the Lync Front End Server.
2. Launch the Topology Builder.
3. In the left pane select Mediation pools > relevant pool.
4. Right-click, then select Edit to open its properties.
5. Select the newly added SBC gateway from the list.

6. Click Add...to associate it with the Mediation Server as shown below.

   Panel
   borderStyle none
   Caption 0 Figure 1 Associate with Mediation Server Image Modified

7. Use Remote Desktop to connect to the Lync Front End Server.
8. Launch the Topology Builder.
9. Right-click on Lync Server 2010 in left pane.

10. Select Publish Topology...as shown below.

    Panel
    borderStyle none
    Caption 0 Figure 1 Publish Topology Image RemovedImage Added

Configuring the LYNC Voice Routing

...

1. Open the LYNC Server 2010configuration page:
   1. Enter the URL of the Front-End pool (https://<fqdn of the front end pool>/cscp).
2. Click Voice Routing in the left pane.
3. Click Voice Policy in the right pane.

4. Double-click the relevant policy_ in the list.

   Panel
   borderStyle none
   Caption 0 Figure 1 Select Relevant Policy Image Modified

    

    

5. Double click the relevant PSTN usage record.

   Panel
   borderStyle none
   Caption 0 Figure 1 Select Relevant PSTN Usage Record Image Modified

   Pagebreak

    

    

6. Double click on the Route entry.

   Panel
   borderStyle none
   Caption 0 Figure 1 Select Route Entry Image Modified

7. Add the secondary SBC gateway into Associated Gateways list

   Panel
   borderStyle none
   Caption 0 Figure 1 Add Secondary Sonus SBC 1000/2000 Gateway Image Modified

8. Click OK, OK, and OK to exit the Voice Policy configuration.

...