Location Based Routing (LBR) was introduced in the Lync2013 Feb 2013 CU making it possible to restrict the routing of calls between VoIP endpoints and PSTN endpoints based on the location of the parties in the call. Location-Based Routing is part of the Lync Server 2013 Enterprise Voice infrastructure and when enabled, allows Lync to enforce call authorization rules on whether calls can be routed to PBX or PSTN endpoints based on the Lync caller’s geographic location. This helps to enforce PSTN Toll-Bypass in countries where regulations prohibit it. Even with least cost routing enabled, the location based routing policies will take precedence. This article walks briefly through the setup and configuration of LBR and tests it against the Polycom VVX family of Lync IP Phones.
In this lab, we use a standard edition Lync server configured with an Asterisk PBX to simulate a PSTN connection. The diagram of this setup is shown below: