Summary
Microsoft Skype for Business Location-Based Routing (LBR) is designed for a mediation pool that contains trunks from a single site. This cumulative update that contains LBR fixes enforced strict LBR checking. It's not supported to connect trunks from other sites (such as branch sites) to the LBR enabled central site mediation pool. This LBR requirement may conflict with other business requirements to provide branch site resiliency or high availability enterprise voice service. If a local survivable branch appliance or survivable branch server (SBA/SBS) fails, the users are registered against the central pool and the enterprise voice calls should be routed through the central mediation pool by using the backup trunk to egress to the local branch PSTN gateways. This update satisfies both LBR and branch site voice resiliency requirements.
How to get this update
To get this update, install the September 2020 cumulative update 7.0.2046.244 for Skype for Business Server 2019, Front End Server and Edge Server.
To get this update, install the following updates for Skype for Business Server 2015:
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The May 2020 cumulative update 6.0.9319.580 for Skype for Business Server 2015, Front End Server and Edge Server.
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The May 2020 cumulative update 6.0.9319.580 for Skype for Business Server 2015, Core Components.
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The May 2020 cumulative update 6.0.9319.580 for Skype for Business Server 2015 and Unified Communications Managed API 5.0 Runtime.
